XForce Exhaust for VE SS

[HOLDAN]

I'm looking at putting an XForce 2.5" catback on my VE SS.

I'm keen to hear what you think of them - positives and negatives would be appreciated.

Regards, Dan

[Millsy]

i hered one on another forum members car:

pro - sounds awesome, little to no drone

con - too much power loss through the rear mufflers

cheers

Millsy

[HOLDAN]

i hered one on another forum members car:

pro - sounds awesome, little to no drone

con - too much power loss through the rear mufflers

cheers

Millsy

Hi Millsy

Thanks for the reply. What would you suggest I do to overcome the rear muffler problem?

Regards, Dan

[Justin@Russo]

We have only good things to say for the Xforce system .
they sound great they are priced right, and they make awsome power.
Search mickve its the fastest unopened ve in the country (12.2 @ 114mph)
and he runs Xforce 2 1/2 system.

[priddy7]

Hay dan I had the 3" system it sounded great but it had a bad drone.But if you just drive around the city they are great, but on long trips they are no good. But other than the drone they are a great product...:rofl:

[Titanium]

i hered one on another forum members car:

pro - sounds awesome, little to no drone

con - too much power loss through the rear mufflers

cheers

Millsy

Sorry Milsy, have to ask, how do you quantify "too much power loss through the rear muffler"? compared back to back with what? In your personal experience?

Having owned and Xforce 2.5" cat back (and a powersound 2.5" cat back and an Xforce 3" cat back), there is NO power loss through the rear muffler. With an intake and tune it was good for 245 to 260 RWKW (depending on dyno and car).

Chuck on Xforce xtractors and it was good for 260 - 268 rwkw (depending on dyno and car etc)

Chuck in a cam it was good for 292 rwkw ..... then it ran out of power because of headers and cats, not the mufflers.

The 2.5" Xforce cat back is a very respectable system for the dollars paid out and gives good gains.

It is the sweetest sounding 2.5" cat back I have heard / owned.

This is not hear say ...... this is from someone who has actually owned it from a stock car to a cammed car.

You can not go wrong, bang for your buck!

[Millsy]

i never said there was anything wrong with the XForce system, i said they loose power through the rear mufflers and theres a member on this forum who on his own car has experienced this. Have you actually modified your own system/s youve owned replacing the mid and rear mufflers and run the car back to back on the dyno to see if there is a power loss? dyno sheets? it doesnt matter what dyno it is, gains or losses will be shown before and after on any car. From personal experienced would be witnessing a car run up on the dyno at a non forum sponsors workshop with a very good reputation one saturday arvo. It was back to back runs 'with' and 'without' the rear mufflers/ressys (replaced with straight pipes for the run only, not for road use due to drone) and it gained an avg. 12rwkw after a tune, the workshop owner told me that the ve a/m systems simply have too many mufflers in them resticting flow but are a must as they drone, thats why he makes his own systems, but as mentioned above i know of another ve owner on this forum who has replaced his mid mufflers with hotdogs and had custom made rear mufflers to both improve power and drone and gained the same 12-14rwkw after a tune, id like to what mods have you done to your own systems only to prove the loss/gain through an XFORCE 2.5-inch system and not your own powersound???

[Titanium]

Milsy,

All I asked is how do you quantify to much power loss, how much is too much?

In my experience, the OEM mufflers are the most restrictive, followed by the Xforce 3", Xforce 2.5" and the least restricitve out of the 4 was the powersound mufflers (I think made by Genie, but could be wrong on that)

Have manage to run (and have owned) the following combinations;

Full OEM VE exhaust system.
Full OEM VE exhaust system minus rear mufflers.
Full OEM VE cat back with Xforce mufflers.
Full OEM VE cat back with powersound mufflers.
OEM headers and cats with powersound cat back.
OEM headers and cats with xforce cat back 2.5"
OEM headers and cats with xforce 3" cat back, 90 mm tips.
OEM headers and cats with xforce 3" cat back, with powersound mufflers.
OEM headers and cats with xforce 3" cat back, with xforce 2.5" mufflers 76 mm tips.
Full xforce stainless twin 2.5" system, 1"5/8 headers, hiflow cats, xforce mufflers 76 mm tips.
Full xforce stainless twin 2.5" system, 1"5/8 headers, hiflow cats, powersound mufflers.
Xforce stainless headers, hiflow cats and powersound twin 2.5" stainless cat back, with and without mufflers.
Full xforce stainless twin 2.5" system, 1"5/8 headers, hiflow cats, no mufflers
Xforce stainless headers, hiflow cats ..... no cat back ........ sweet sound!
Xforce stainless headers ...... no cats ...... picked up 11 RWKW over the run above with the cats on! ... best sound of them all!
Pacemaker 1"3/4 4>1 longs, 3" cats mated to powersound twin 2.5" stainless cat back .... best power of them all!!

Got dyno sheets for some of them, most are logged on dynos etc.

Yup I know a VE GTS owner who suffered an exhaust restriction after adding pacemaker longs & high flow cats, 3" cat back with hot dogs in line after the centre resonator, pulled off the 3" rear mufflers, gained 14 RWKW, added some custom made rear mufflers and only lost 2 RWKW of the 14 gained. The mufflers only became restrictive after the addition of the headers etc.

So back on topic, the guy wants to know if Xforce systems are ok. Yup they are, keep in mind any other mods you might be thinking of down the track as you will find bottlenecks as you bolt things on.

Good bang for your buck with good power gains, good sounds, but you are neither paying for or getting a custom made system.

The other good thing about the xforce, is they have managed to get the section right that passes over the cross member under the car, powersound got it wrong and it does not clear enough to prevent contact and annoying banging ..... so I took off the cross member, not something I would usually do.

Xforce do have some flange mating issues and tricky bolt locations to get to when fitting up, average quality on the suppled nuts and bolts experienced as well.

[Super_Matt]

I have Titanium's old 2 1/2" Xforce system on my car and find it fantastic.
Drove home from melb and all though there is slight drone in 6th gear at 110km/h it was still comfortable.

Very good system for $$$

Not to loud when idling and pottering around town but on WOT sounds fantastic.

Still waiting to get a tune but have been told that it will make the note sound even better.

Cheers

Matt

[GODSMACK]

I have Titanium's old 2 1/2" Xforce system on my car and find it fantastic.
Drove home from melb and all though there is slight drone in 6th gear at 110km/h it was still comfortable.

Very good system for $$$

Not to loud when idling and pottering around town but on WOT sounds fantastic.

Still waiting to get a tune but have been told that it will make the note sound even better.

Cheers

MattMatt, is ur 2.5" the Mild or Full SS system??

[Titanium]

Matt, is ur 2.5" the Mild or Full SS system??

It was full 2.5" twin stainless steel system.

[GODSMACK]

It was full 2.5" twin stainless steel system.
Thanks mate... :)

[Redback081]

I'm looking at putting an XForce 2.5" catback on my VE SS.

I'm keen to hear what you think of them - positives and negatives would be appreciated.

Regards, Dan

I'm having a 2.5" xforce put on my ve ss tomorrow with 4 into 1 pacies.. so I'll let you know tomorrow :driving: :yup:

[Titanium]

I'm having a 2.5" xforce put on my ve ss tomorrow with 4 into 1 pacies.. so I'll let you know tomorrow :driving: :yup:


Nice! never managed to get to try that set up, what cats you going for?

[Redback081]

Nice! never managed to get to try that set up, what cats you going for?

no freaking idea mate, will find that out tomorrow too!
i've had the car dyno'd stock, then will have it done again after exhaust then for the last time after tune and CAI so will post the results end of next week.

just have to wait till next week for the tuner to fit me in :bawl:

[HOLDAN]

Milsy,

All I asked is how do you quantify to much power loss, how much is too much?

In my experience, the OEM mufflers are the most restrictive, followed by the Xforce 3", Xforce 2.5" and the least restricitve out of the 4 was the powersound mufflers (I think made by Genie, but could be wrong on that)

Have manage to run (and have owned) the following combinations;

Full OEM VE exhaust system.
Full OEM VE exhaust system minus rear mufflers.
Full OEM VE cat back with Xforce mufflers.
Full OEM VE cat back with powersound mufflers.
OEM headers and cats with powersound cat back.
OEM headers and cats with xforce cat back 2.5"
OEM headers and cats with xforce 3" cat back, 90 mm tips.
OEM headers and cats with xforce 3" cat back, with powersound mufflers.
OEM headers and cats with xforce 3" cat back, with xforce 2.5" mufflers 76 mm tips.
Full xforce stainless twin 2.5" system, 1"5/8 headers, hiflow cats, xforce mufflers 76 mm tips.
Full xforce stainless twin 2.5" system, 1"5/8 headers, hiflow cats, powersound mufflers.
Xforce stainless headers, hiflow cats and powersound twin 2.5" stainless cat back, with and without mufflers.
Full xforce stainless twin 2.5" system, 1"5/8 headers, hiflow cats, no mufflers
Xforce stainless headers, hiflow cats ..... no cat back ........ sweet sound!
Xforce stainless headers ...... no cats ...... picked up 11 RWKW over the run above with the cats on! ... best sound of them all!
Pacemaker 1"3/4 4>1 longs, 3" cats mated to powersound twin 2.5" stainless cat back .... best power of them all!!

Got dyno sheets for some of them, most are logged on dynos etc.

Yup I know a VE GTS owner who suffered an exhaust restriction after adding pacemaker longs & high flow cats, 3" cat back with hot dogs in line after the centre resonator, pulled off the 3" rear mufflers, gained 14 RWKW, added some custom made rear mufflers and only lost 2 RWKW of the 14 gained. The mufflers only became restrictive after the addition of the headers etc.

So back on topic, the guy wants to know if Xforce systems are ok. Yup they are, keep in mind any other mods you might be thinking of down the track as you will find bottlenecks as you bolt things on.

Good bang for your buck with good power gains, good sounds, but you are neither paying for or getting a custom made system.

The other good thing about the xforce, is they have managed to get the section right that passes over the cross member under the car, powersound got it wrong and it does not clear enough to prevent contact and annoying banging ..... so I took off the cross member, not something I would usually do.

Xforce do have some flange mating issues and tricky bolt locations to get to when fitting up, average quality on the suppled nuts and bolts experienced as well.

Thanks for this - I'd heard there were some issues with a section of the system hanging low and scraping on speedbumps etc. Sounds like this problem is fixable.

[Super_Matt]

the Xforce exhaust doesnt seem to sit any lower then the OEM.
I havent had any problems with scrapping mine as of yet.


Matt

[SiriX]

I've got an Xforce Twin 2.5" system on my VE SS-V Ute, customized to fit (lengthened), and with the centre muffler removed, i don't have a stock dyno run, but that's the only engine mod to my vehicle (stock intake etc) going to do a dyno run soon, will be interesting to see what it makes.

It doesn't drone, it's by no means loud, altho it's a comfortable loudness, so you can hear it.

Cheers,

SiriX

[robboSV8]

i'm more than happy with the xforce i had put on my ssv, car finally sounds right. pay the extra for the stainless as it looks great from the back of the car.

[vess]

I'm looking at exhausts for my VE SS now - the xforce are just so cheap compared to the 'drone free' exhausts being sold.

I'm very concerned about drone - guys who have these exhuast could you give some more feedback into cabin noise at cruise say arund 60 and 100 - 120?

Thanks for your help guys.

[Super_Matt]

I'm looking at exhausts for my VE SS now - the xforce are just so cheap compared to the 'drone free' exhausts being sold.

I'm very concerned about drone - guys who have these exhuast could you give some more feedback into cabin noise at cruise say arund 60 and 100 - 120?

Thanks for your help guys.



If you were closer i would of taken you for a spin mate!!

Doing 60km/h in 4th no problem at all IMO
Doing say 110 - 116Km/h with your foot on the throttle slightly some drone present but IMO not bad enough to replace the system
By the time you doing 120km/h (not that i do that speed) not to bad drone. (hmmm great english there lol)

IMO drone really isnt an issue.

But you also have to keep in mind if only going catback apparently drone will be more of an issue. I have a full system.

Matt

[SiriX]

My twin 2.5" Xforce system, even with the centre muffler taken out, it's cat-back only, but i don't get any drone, even at cruising speeds etc, it's pretty quiet unless your giving it some stick and it's under load...

Cheers,

SiriX

[CLUBRED]

Sorry for digging up a slightly old thread. But any chance of a sound bite from the interior with windows up.

Drone is a big issue for me, as I do alot of runs out bush and most of the time I just like to cruise and listen to the quiet (or road noise - weird huh), very rarely go long distance with the radio on. I've test driven an 06 Ve SS with twin xForce 2.5 (wasn't able to tell if it was full system) and was unnoticable off load and putting about 60-80kph sounded great on load though - just couldn't get her up to 110ish to cruise for any length of time to get a better appreciation of it.

I'll seriously regret purchasing any exhaust if I get drone - but I want my v8 to sound like it should. Too much to ask?

[MclarenF1]

Dcve, the 2.5 Xforce sounds good but did not give my car much of a power increase, although my car is most likely not fully fit at the moment. Problem was i put the pacemaker headers and zorst on 4 days after i got the car so i'm not sure it makes a difference. As far as drone goes, its quite minimal at 110kph, almost silent, so from this view point i think its a good system as it make all the right noises on take off.

[Curtis-R]

Dcve, the 2.5 Xforce sounds good but did not give my car much of a power increase, although my car is most likely not fully fit at the moment. Problem was i put the pacemaker headers and zorst on 4 days after i got the car so i'm not sure it makes a difference. As far as drone goes, its quite minimal at 110kph, almost silent, so from this view point i think its a good system as it make all the right noises on take off.

MclarenF1 from what I have read here and in some of your other posts you have some serious issues goin on with that car of yours. The fact that a stock V6 is probably quicker down the qtr mile than yours etc.. have you had it looked at? Also did you have your car on the dyno for before and after results with the exhaust?

I reckon the X-Force is a great bit of kit for the $$

[MclarenF1]

MclarenF1 from what I have read here and in some of your other posts you have some serious issues goin on with that car of yours. The fact that a stock V6 is probably quicker down the qtr mile than yours etc.. have you had it looked at? Also did you have your car on the dyno for before and after results with the exhaust?

I reckon the X-Force is a great bit of kit for the $$

I'v heard the 2.5 xforce is a great system, i just did not feel a difference because i did not drive the car in stock form long enough to tell a difference. From what i read people who have a healthy car plus the xforce see great gain in power, but my car seems a little different to a healthy stock car.

[rocks-crewman]

I have had the x-force 2.5 (mild steel) in my Berlina for about 15000km now, and have had no probs with it thus far. It sounds good without being too noisy, which is what I was after.
I did have a bit of a drone at about 100kph in sixth (@1500rpm), which was cured with Pacemaker short pipe 4 into 1's and opening up the stock cats.
Happy to recommend this system.

[sooley]

Hi All
First post as I just got an HSV GTS VE, Auto and was looking at the X Force system as a first upgrade.

Should I still go the 2.5" or the 3"

I don't want the drone but what would suit my car better?

Thanks

Sooley

[Gump]

2.5" is the go

[Wonky]

2.5" is the go

Please explain.... :confused: No point just stating that without justifying it somehow.

[Gump]

much better responsiveness down low on the auto and found it droned much less. My opinion only and each to their own.

PS I still have the 2.5" on the TTR setup I just installed and it just eats it up down low and throughout the mid range/top end

[vessm]

I'm looking at putting an XForce 2.5" catback on my VE SS.

I'm keen to hear what you think of them - positives and negatives would be appreciated.

Regards, Dan



Got a dual 3" gettin put on friday ill let ya know how it is

[NuffNuff]

how much are you guys paying for parts and fitting? anyone in melb got just the catback in melb fitted atm?

[vess]

Hey guys, if you haven't seen my threads check out the below - I had the system fitted a while back now (maybe december) and love it. Just not sure if I'm keeping the car for to much longer so if anyone wants a full 2.5" system (s/s) and a ORRSOM OTR pm me.

Dyno chart
http://i260.photobucket.com/albums/ii23/vess_photos/WalkinshawPerformance-PTMAFLESSTune.jpg

Extractors
http://i260.photobucket.com/albums/ii23/vess_photos/LHX-ForceExtractors.jpg
http://i260.photobucket.com/albums/ii23/vess_photos/RHX-ForceExtractors.jpg

Clearance shot
http://i260.photobucket.com/albums/ii23/vess_photos/X-Forceclearance.jpg
http://i260.photobucket.com/albums/ii23/vess_photos/X-Forcecloseupclearance.jpg

And now for the sound..

Inside
http://i260.photobucket.com/albums/ii23/vess_photos/th_VESS016.jpg (http://s260.photobucket.com/albums/ii23/vess_photos/?action=view&current=VESS016.flv)

Outside
http://i260.photobucket.com/albums/ii23/vess_photos/th_VESS004.jpg (http://s260.photobucket.com/albums/ii23/vess_photos/?action=view&current=VESS004.flv)


Hope this helps you guys - they really are a great system for the buck.

[hogs]

Evening,

As posted in another thread, I have to replace my ESA 2.5' Twin system at present.

I am in Ballarat Vic and have been totally astounded with the service that Pete from Autohush in Latrobe st has given me. Big plug, but I mean it!!

I have a Twin 2.5" X Force set up installed by him and all I can say is bloody great.

I have a Wagon and was assured that it would bolt up no farting around, and that was exactly the case.
Sounds deeper than the ESA system, and is still to be run in so I expect it to improve even moreso.

Seat of the pants feels every bit as good as the past system, and sounds fantastic from the drivers seat, and for what it is worth "NO DRONE AT ALL", and in a WAGON that is a fair positive.

I will not divulge the fitted price at present, but for all of the fellas that are fitting some of the up market items, unless you have Dyno results to prove a significant gain, or are having under car photos taken, in my opinion the $$$$$$$$ do not justify the result.:rofl:

Very happy camper.:smilesandbanana:

Cheers,

Hogs,:)

[sooley]

Hi All
First post as I just got an HSV GTS VE, Auto and was looking at the X Force system as a first upgrade.

Should I still go the 2.5" or the 3"

I don't want the drone but what would suit my car better?

Thanks

Sooley

Well I bought the X Force 2.5" cat back in Mild steel. The single centre muffler with the twin rears with 89mm tips and for what I paid and the results I acheived its a great product.
For value for money, fitting ease and most of all the sound, its great. It doesn't drone at all (Auto VE GTS) and not even my wife noticed any difference (until I gave it a boot full) but I still had to comment, she didn't really pick it up. It's not heaps louder than factory but loud and low enough that you know your driving a V8.
I did also notice a difference in throttle response and it seems to pull better throughout the rev range.
Its wrth every dollar.

Sooley

[300kw]

VESS,


Are you still keen to sell your exhaust and OTRCAI?

Am in Brisbane and is pretty much what I'm after, although would probably have gone mild steel.

Let me know if you are still keen and what price for each. would have PM'ed you but this post makes number 8

two to go

:confused: 1

[vess]

Hey 300kw,

Yeah pretty sure I'm trading the car and I'm not going to get any more for the trade by having these parts on it.

I'm thinking 1600 for the lot and your old system so I can have something to put back on the car.

You can keep all the air intake gear as I have all that from when PowerTorque did my setup.

I'm in Yeronga so if you want to come and have a listen give me a yell.

[300kw]

Yeah wouldn't mind having a listen. I will pm you with a time, thinking maybe tomorrow afternoon (Sun) and we can discuss change-over details then as well.

[vess]

I've replied to the PM's guys - thanks for the interest.

300kw - I've sent you my contact details, give us a yell and we'll catch up when it's good for you.

[ryno]

Got a dual 3" gettin put on friday ill let ya know how it is

How did you go with the twin 3"? Is there much drone?

[Red-SSV]

I have Titanium's old 2 1/2" Xforce system on my car and find it fantastic.
Drove home from melb and all though there is slight drone in 6th gear at 110km/h it was still comfortable.

Very good system for $$$

Not to loud when idling and pottering around town but on WOT sounds fantastic.

Still waiting to get a tune but have been told that it will make the note sound even better.

Cheers

Matt
and im the proud owner of titaniums x force 3inch cat back.
i have the xforce step exrtactors and 3inc cats and im rapt.
wot it sounds awsome
cheers
ray.

[SSV8TE]

Gday all,
Check out the sponsors section and go on chev performance. Then follow curtis ve ss and see what an xforce extractor and 2.5 inch system can handle. With work his car pumping 326 rwkw. Worth a browse these guys all know what they're talking about when it comes to no bull performance.
Cheers,
Andy.

[SSV8TE]

Gday all,
As some of you know i have a ve ssv ute with the xforce catback only for now and mine has hell loud cabin noise. The motor sounds like its in the cabin with me. And when i did put the system on it got louder. I dont mind as i like the v8 noise but for those of you who want performance and less noise in a ute i would say wear earplugs:rofl::rofl: Mine has crackling on geardowns and gearchanges but im told that after i replace the stock exhaust manifolds to the stepped xforce that will reduce a fair bit. Hope i have heard right but as i said the xforce system is renown for its volume.

[jesza1966]

I'm looking at putting an XForce 2.5" catback on my VE SS.

I'm keen to hear what you think of them - positives and negatives would be appreciated.
Regards, Dan

Hey Dan just put X-Force Cat Back 2.5" Quad Tip Exhaust on my 2007 VE SS Commodore on Friday the 16/8/13 and could not be happier with the X-Force System. Firstly the sound is great as it gives it a nice meaty note, which certainly turns heads. Secondly the price was realyl good as I paid $795 fitted. So I say go for it as you won't be disappointed.

[jaykay]

Hey Dan just put X-Force Cat Back 2.5" Quad Tip Exhaust on my 2007 VE SS Commodore on Friday the 16/8/13 and could not be happier with the X-Force System. Firstly the sound is great as it gives it a nice meaty note, which certainly turns heads. Secondly the price was realyl good as I paid $795 fitted. So I say go for it as you won't be disappointed.

Mate the OP posted this in Nov 2007 so this is a bit f a thread dig.....

[Goggles]

Mate the OP posted this in Nov 2007 so this is a bit f a thread dig.....

might be a thread dig, but something I was looking for.

now to find the best place to get this done in Canberra

[GR346]

If your in Canberra, Roadway have always been excellent exhaust wise, fabrication has always been great.
Had my last 2 cars done there and have a couple of mates that use them too

I was originally looking at them to do a full custom exhaust for the R8 but ended up handing Sonny the job when he did the heads/cam

[HOLDAN]

Hey Dan just put X-Force Cat Back 2.5" Quad Tip Exhaust on my 2007 VE SS Commodore on Friday the 16/8/13 and could not be happier with the X-Force System. Firstly the sound is great as it gives it a nice meaty note, which certainly turns heads. Secondly the price was realyl good as I paid $795 fitted. So I say go for it as you won't be disappointed.

A lot of water (and exhaust systems) have passed under the bridge since I posted that. I now run a na 406ci stroker (L98) 9" diff and 3.5 gears. Makes 540rwhp. I first bought a 2.5" Remus system and then put 1 3/4" pacies on it. After the stroker build, I upgraded to 1 7/8" cermic coated jobbies and 3" stainless KPM exhaust. Sounds sooooooo sweet.

[team illucid]

If your in Canberra, Roadway have always been excellent exhaust wise, fabrication has always been great.
Had my last 2 cars done there and have a couple of mates that use them too

I was originally looking at them to do a full custom exhaust for the R8 but ended up handing Sonny the job when he did the heads/cam

I have only heard a few good things about Roadway, and mostly expensive bad mistakes about them.

Having used Powatone recently, they were cheap, nothing was a problem, and even sprayed my mufflers in black heat proof paint to make it all look factory. Apparently they don't prescribe to the Canberra tax like everyone else does, and are decent car lovers.