x-force exhaust systems

[SV8.YOU]

i have vy sv8, looking for exhaust from cat back, i have been told by sonny to get difilipo dual 2.5 inch, which gives it a great sound and power, i think it is approx $900 which includes power run before and after. Also i spoke to russo's performance and they mentioned x force which is $550 and it gives great sound and power, my instinct is to go with sonny cause as you know sonny is highly recommended, difilipo is well known and my understanding is if its cheap it must be nasty no offence to x force, all i want is an exhaust that sounds nice on start up, driving and to have noticeable power increase, looking for any info good and bad from people that have these systems, thanks for any help

[LOCO]

Ive use both Xforce and DF's
in my opinion there both the same in sound and pwr
but i would rather pay a lil more and get DF's

[mickve]

It depends if you want to pay extra for the name .The xforce systems look good , sound good and i use it on my car which is the fastest bolt on ve at the moment all thanks to russo performance. Plus xforce is cheaper what more could you want ?

[Delft Maloo]

i just put an x force system on my ve and its good, there was no way i was going to fork out the $ for the difillipo catback.
I also had a difillipo catback on my maloo befor i turbo'd it and after for awhile, it was a damn nice sounding exhaust with a pair of hotdogs on the rear end to help it and worked quite well but it was shit quality, the metal was thin and didnt take long to corrode, no way id buy another one unless second hand.

[staticexistence]

My X-force twin3 is great definately gets my thumbs up :bow:

[GMMAD]

there is nothing wrong with the X force systems just because they are cheap doesnt mean they are nasty
the quality is good and they sound good
I dont think there wound be much in sound /power wise between them

[Berlina 5.7]

I got a Df and it corrodded within 2 years. I now have an exforce, 2 1/2 inch pipe fully stainles steel system, cost me $950 from cats onwards. The reason why they are cheap is becasue they are made in China. Do a google search under xforce, i found their website, and you can read up about it. Mine sounds great.

[BLACKWAGON]

VE and pre Ve x force must be different quality.
The VY is definately more restricted and quieter than the di filippo, I ripped the x force off to replace with difilippo, cheaper grade of stainless, not actually 2.5inch its smaller, the x merge is about the thickness of 1 pipe compared to difilippo is 2 x 2.5 all the way thru.
Wouldnt even consider the xforce on pre VE even if it was half the price.
I drove mine in to the shop, helped the guy rip the x force off and put the difilippo on, 30 mins later I tested the di filippo.........much better note, power, much more free flowing system.

[DS 248]

Had a 2.5" cat back xforce fitted to my VE ute today, it seems to be of great quality for the money. Sound is fantastic, for what I wanted anyway, quiet on idle and cruising, nice and deep when you bury the foot!

[bennoxr8]

I've got X force mild steel cat back on my VZ SV8 and am very happy. I've also got pacemaker headers and as a combo they go and sound great, im very happy.

Cheers,
Benno.

[iloveholden]

The X-force usually sounds ok but i think the DF's sound better.

[Dassvnip]

I have pacies 4-1 1 3/4"-3" 3" hi flows and 2.5" xforce cat back and its sounds mcfarken great, nice note chilling ,and on WOT roars like a real V8 not like a vacuum cleaner :) just remember it sounds better when u wear it in a bit!

[WILWIN]

Definately cant beat the x-force for the money, the sound is good. And to tell you the truth, I have tested a few exhausts on my car and X-Force seems to make more power.

[JS57SS]

yeah i was just about to get dp but x force seems like the go now cheers guys

[SV8.YOU]

i have heard with the stainless steel it sounds tinny, as anyone else heard this

[BLACKWAGON]

mine was stainless, didnt sound tinny or bad in any way, just pathetic that the x merge goes in to the thickness of 1 pipe, whats the point of putting bigger pipes on for them to be restricted to shit in the x.
The x force mild steel was like 700 when I called them direct a while back, di filippo is 750........not much difference in price...Aussie vs asian???

[VXSS346]

i have heard with the stainless steel it sounds tinny, as anyone else heard this

Not with the DF, I've had both versions (Mild and stainless) They both sound the same to me.

Cheers

[BLACKWAGON]

Not with the DF, I've had both versions (Mild and stainless) They both sound the same to me.

Cheers


Thats bcs di filippo use 409 grade, not the pretty shiny stuff that is thinner.

[BennyMac]

i have vy sv8, looking for exhaust from cat back...

The answer here is simple. You have almost answered it yourself.
But at the end of the day it comes back to whether you want to cut corners on quality.
One is made in OZ :headbang:
The other in China :lol:

My advice would be that if you are going to keep the car for a long period then go Stainless as Mild will not last as long.
Di Filippo's Stainless System is the best "off the shelf" money can buy.
So good that i took my whole DF system off my '01 R8 before i sold it and it now sits on my '05 VZ Sv8 :)
Like i said its up to you.

Ben :popcorn:

Have a look at the bottom of this thread
There you will find your answer..........:goodjob:

[Wonky]

Have a look at the bottom of this thread
There you will find your answer..........:goodjob:

??? :confused: :confused:

[BennyMac]

If he did go X-Force


??? :confused: :confused:

LINK (http://www.ls1.com.au/forum/showthread.php?t=98312)

Twin X force Stainless Steel exhaust 2.5" comes complete with 2.5" high flow cats
and its at Russo's already......:)

Ben

[CV860L]

I went X-Force on my ute after going DiFillipo on my other 2 cars, big mistake.
It's all over the place, it hits in about 3 different places, the tips are cross eyed, and one side is a good inch longer than the other.
I am now paying to have the thing cut and bent to suit. no more X-Force for me!!!

[cosmo vyss]

Di Fillipo equals quality. simple really.

I had another brand zorst on my car and replaced it with Di Fillipo and a marked improement in sound and performance was gained.

cheaper isn't always the right answer.

JB

[vytwo]

I had a set of 1 3/4 S/S X Force headers aong with hi flow cats and a twin 3' cat back fitted at Russos todays on my vy ute & im very happy with it. :goodjob:.

I had a good look at everything before it went on the car and the quality is fantastic with very neat tig welding, ill post photos later.
Clearances when fitted were good too and the price was spot on!

Exhaust choices are a personal thing when it come to loudness, sound etc. I choose x force over di-fillipo 'cause i know they make good power, i reackon the quality is better and the price of di-fillipo is up the arse for a few bent pieces of mig welded pipe imo.

[Justin@Russo]

If he did go X-Force



LINK (http://www.ls1.com.au/forum/showthread.php?t=98312)

Twin X force Stainless Steel exhaust 2.5" comes complete with 2.5" high flow cats
and its at Russo's already......:)

Ben

Im not sure what your implying there , this system that you have linked is a second hand unit that was taken off a customers car to be replaced with a 3 inch xforce ss system. The second hand system was fitted to another member of this forums car who is very happy with it.

I don’t care what system SV8.U fits to his car as there are many option out there but if a customer rings us we recommend Xforce as we always get great results, they are well priced and are excellent quality. If they didn’t work we would not use them as many of our customer’s race there cars and expect results not just a pretty dyno figure for bragging rights

Early Xforce systems were smaller than 2 ½ inch as they were metric pipes and we would not fit them they rectified this issue now both mild and ss are 2 ½ or 3 inch .

As for the merge I myself have cut the merge out of systems, modified them and tried many different combos but I have always gone back to the merge they designed as it works, we have no trouble making over 300 rwkw on a 2 ½ system on a n/a motor and on the 3 inch system we have seen over 400 rwkw on a n/a motor were the exhaust is crucial to performance..

Im sure many people think that Xforce systems are just slapped together I china with no real science behind there design but that would be far from the truth. Engineers here design the systems using there own dynapac dyno and they test many different combos with pressure sensors in different parts of the system checking back pressure, flow etc.after months of testing with lots of data collected they then send the system they are happy with to china to be manufactured .engineers are constantly going to china to make sure quality control is up to scratch.

[BennyMac]

I was implying the obvious mate....
Twin X force Stainless Steel exhaust 2.5" comes complete with 2.5" high flow cats
and its at Russo's already......


The second hand system was fitted to another member of this forums car who is very happy with it.



....and no doubt a good buy :)

Whatever SV8.YOU goes with im sure he will be happy..........for now

Ben

[Brandonsdad]

I went X-Force on my ute after going DiFillipo on my other 2 cars, big mistake.
It's all over the place, it hits in about 3 different places, the tips are cross eyed, and one side is a good inch longer than the other.
I am now paying to have the thing cut and bent to suit. no more X-Force for me!!!

Sometimes my shirts, made in China, have one sleeve which is slightly longer than the other. Its no big deal.
Everyone has their favourite.

[vpstroker]

thumbs up for me for the xforce interesting vid for the ve range watch the video

varex system

http://xforce.com.au/cars/view_car/38

[BLACK 346]

Sometimes my shirts, made in China, have one sleeve which is slightly longer than the other. Its no big deal.
Everyone has their favourite.

Have you checked your arms, the shirts might be fine :)

[BennyMac]

Your question was answered right HERE (http://www.ls1.com.au/forum/showthread.php?t=103397&highlight=exhaust)

macca33 does it again :goodjob:
What are you waiting for :confused:

Ben

[Tyre biter]

...they are well priced and are excellent quality. If they didn’t work we would not use them as many of our customer’s race there cars and expect results not just a pretty dyno figure for bragging rights

Im sure many people think that Xforce systems are just slapped together I china with no real science behind there design but that would be far from the truth. Engineers here design the systems using there own dynapac dyno and they test many different combos with pressure sensors in different parts of the system checking back pressure, flow etc.after months of testing with lots of data collected they then send the system they are happy with to china to be manufactured .engineers are constantly going to china to make sure quality control is up to scratch.

I am sure they are Justin, however my friend (uteme) had his S/C VE die the other day after 1500km using the X-Force 3" system with a Harrop H122 S/C (running a conservative 8psi) with VCM tune by Gentech. Gentech have pulled a shed load of things apart when chasing the issue and I am told they have finally learned that the guts of the X-Force metal cats have come loose and one in particular has 'smashed itself up a bit' before blocking the cat and causing the engine to drop cylinders under any resemblance of load.

Again, I am told that X-Force were contacted and in response, they reckon the issue arises when folks run too rich a tune, and that engines need to be tuned properly (leaned out somewhat - nil further detail) to avoid this outcome - this despite the car having been tuned by Gentech with VCM, and (to my understanding) running about as rich as the standard tune???

The good news is that X-Force are covering the cats under warranty - well done to them.

I have my X-Force still in boxes in my garage to be fitted this week but this is a worrying development to my mind, and one I hope that X-Force resolves with further R&D of the type prescribed by Justin, as opposed to merely blaming a rich tune and leaving things as they stand.

Cheers

[Bandit]

yep good systems just got one put on today.
nice and burbly

great V8 note

[WGN57L]

Got an X Force system on my wagon supplied and fitted by Russo,it's got a great note, great power and got it at a great price! I often get asked what system is on the car and comments on the nice note.:goodjob:

[Tyre biter]

Just got back from a wee spin with the new 3" X-Force system and it is fantastic, everything I hoped it would be - perhaps more.

The amount of crap that fires out the back on start-up is a tad troubling (seems to have included iron filings amongst all the crap), and so a liberal wash down of the paintwork is imminent.

Thanks go to Uteme for his time and experience in helping me to fit the exhaust (took us about 3.5hrs all up including smoko breaks), and also to Deanss-v for his photos and step by step description provided in another thread (Xforce stepped headers).

I also got to have a close-up look at the guts of the cat belonging to Uteme as described by me a few posts back. It has been totally smashed up and compacted to resemble a cricket ball - with nil signs of melting as the folks at X-Force reckon it will do if the tune is running too rich. It seems the guts of the cat are tac welded to the pipe and for reasons unknown, the welds have failed resulting in the innards rattling around and beating itself into a ball that later blocked the pipe.

Lets all hope this is a one off (though it has happened to both cats in Uteme's car) and we fellow X-Force users will not suffer the same...

Cheers

[BennyMac]

The amount of crap that fires out the back on start-up is a tad troubling (seems to have included iron filings amongst all the crap)

:confused: :confused: :confused:
Is that the norm :confused:

Ben :confused:

[Tyre biter]

I think it is normal. Uteme said that he had the same with his, just that (what appeared to be) iron filings were a worry for me, not so far as the exhaust system itself, but moreso with regards to having them now lying all over my paintwork as they blew back into the garage on the wind.

You should have seen the amount of smoke coming out the back though - amazing.

What is more amazing however, is both the noise (I love it) and Uteme's smashed up cats (Not loving those so much).

Cheers

[Curtis-R]

There is no doubt X-Force are aware the market for their systems on Holdens now is a pretty big priority for them. They manufacture for a lot of different make and model cars. I know for certain that the performance workshops that distribute them, provide good feeback to the X-Force folks, who in turn continue to develop the product.

IMO It's totally normal to expect crap to fly out of it, smoke up (oil), change colour etc when fitted/new. Although the CAT failure is not good, it is good to see them come to the party and support/warrant their products.

Anyway Hope your well TB and let us know when ur in Melb next. Glad to see the exhaust is all sorted for you :goodjob:

[leokerrie]

i got an exhaust made at my local exhaust shop is a 3 inch single from cats back has no muffler just a resonater at the back and sounds great have had heaps of comments only cost $500 not looking for performance just wanted it to sound like a V8

[laz87]

Di fillipo all the way

[EddieVE06]

An old thread i know but its the best I could find. Am getting a VE V8 Calais on Saturday and am looking for a cat back that will open it up a little. i'm not wanting 3inch etc etc. Given its the Calais and I'm having a child soon, well the wife is, I'd be looking at something that is not going to be overly loud but just a step up from stock with a nice burble.
Hoping to find something like quiet on idle, around town but opens up on throttle.
Does anyone have feedback on the x-force 2.5 inch quiet system or sound file.

Thanks
Eddie

[pelagonia_ss]

My mate has that XForce catback on his SSV ute.. Sound nice and beefy for a cat back that is. How much more $$$ is the Difillipo Catback for the VE?

[Wonky]

Eddie, from what I've heard of cars with just a catback the X-force 2.5 should be good for your needs. They're relatively quiet until you really sink the boot in.

[EddieVE06]

Thanks, my next worry is the dreaded drone as its an auto, could probably handle a little of it but not to much.

Anyone have a sound file or have just a 2.5inch cat back xforce on their car around Melb. Would be happy to meet up to listen to it.

[Wonky]

Used to be quite a few guys at Chev's with 2.5" X-force catback but all the ones I can think of now have extractors and a lot have cams!

[SSV8TE]

Gday eddie,
I had an x force 2.5"cat back first fitted to my ute a while ago. I have a few other mods now so couldnt give you a listen with just that but i can say when it was fitted it did start out a little strange.
The note out back wasnt that good and i jumped to conclusions and posted that it was crap. After a few weeks and the exhaust burnt in a bit and settled the note improved to the point that i loved it. Reasonably quiet on idle and just light throttle. Once the boot went down though the note rumbled out back. So all in all i have the 2.5" xforce cat back and now the stepped headers from chev's and my ute with other mods is over 300 rwkw's. Point is these exhausts can handle future mods and perform well. I give the thumbs up to this exhaust.
Best of luck mate,
Cheers,

Andy.
Ps. If you want to hear some soundfiles go into the Chevs sponsor site and look up the "big blue firetruck".

[VE 348]

My mate has a 3" xforce on his VE SS and it sounds great......streets ahead of the 2.5".....I know becuase several other VE owners have the 2.5".

I am going the 3" on my SS.....people say power loss but my mate with the
3" got 230rwkw with this system and a tune....all he needs is a good OTR and he will get 245 to 250 rwkw....good power for $2,500 of mods.....but the sound is greeeeat :smilesandbanana:

[bonners]

Alright, I want to stir the pot a little.
I'm interested in knowing from you guys

1. S.S or mild
2. Size
3. Cost
4. Catback or extras

[EddieVE06]

Gday eddie,
I had an x force 2.5"cat back first fitted to my ute a while ago. I have a few other mods now so couldnt give you a listen with just that but i can say when it was fitted it did start out a little strange.
The note out back wasnt that good and i jumped to conclusions and posted that it was crap. After a few weeks and the exhaust burnt in a bit and settled the note improved to the point that i loved it. Reasonably quiet on idle and just light throttle. Once the boot went down though the note rumbled out back. So all in all i have the 2.5" xforce cat back and now the stepped headers from chev's and my ute with other mods is over 300 rwkw's. Point is these exhausts can handle future mods and perform well. I give the thumbs up to this exhaust.
Best of luck mate,
Cheers,

Andy.



Thanks Andy, will have a look, as i said drone might be an issue with mine as its an auto while yours is a manual.
Will have to do some solid searching around. I just dont want to go through the same crap I did with the SV6 and the drone.
Thanks

[VE 348]

Alright, I want to stir the pot a little.
I'm interested in knowing from you guys

1. S.S or mild
2. Size
3. Cost
4. Catback or extras

Mate its a personal thing....I would go mild, 3" pussy back $1000 bucks.

Depends on other mods but would also go OTR and tune if you dont have them $1500.

You can go all the way with hedders and high flow pussy 4 $1900.

[bonners]

VE

Thanks mate, but I guess I was asking what others had paid. I have heard such a broad range of pricing for XForce systems.

[Tyre biter]

Alright, I want to stir the pot a little.
I'm interested in knowing from you guys

1. S.S or mild
2. Size
3. Cost
4. Catback or extras

1. Mild - I like the 'fuller' sound of Mild as opposed to the tinny sound sometimes heard with SS systems.

2. 3" - Everything I have read on here suggests VE responds very well to a dual 3" system whereas I think previous models posted better results with 2.3" than 3".

3. Cost $2195 for a full system that was fitted by me - headers (SS), Cats (SS) and exhaust (Mild), and I anticipate that like most things, the price in Canberra is somewhat above elsewhere.

4. See three.

I love it, the sound is like a good red wine as far as I am concerned. A smidgin of drone/boom on the highway at 110-120km/h in 6th, but not nearly so bad as to resent fitting it.

Cheers, TB

[paok_18]

Hi there,
Ive got a dual 2.5" on my VZ 6L with 2 centre magnaflow mufflers, 4" barrel 14"inches long and the same in the rear.
And the note from that is very very good. Deep and loud with MINIMAL drone!
Its a unique note, not the same as most people. Thats the only reason why i didn't purchase x-force or anthoer bolt-on system as every bloke and his dog has it!..
Just my 2 cents worth!

Thanks,
James. :)

[Wonky]

Manual or auto James as that can make a significant difference as to whether people are prepared to live with (work around) the drone?

[SSV8TE]

Hey lads,
From what we could gather from all the info on here there are alot of opinions on the xforce system.
I have a full xforce system and certain mods and i am happy with my performance and exhaust note whereas others might have the same setup and hate it. It comes down to preference. Some people like heaps of noise and some like it more subtle. IMO these xforce systems are perfect for the street. Decent note at idle with not too much volume and real loud when at WOT.
Priceing is hard to comment on as there are so many variations around the traps. In general you would be better off to contact a forum sponsor as local to where you are as you could. Or have a look on ebay as an example.
But from ebay beware as there are no guarantee's that they will fit up perfect and you may have to add the cost to original price to get it fixed at an exhaust shop. They have been known to need slight mods.
For a 2.5" system cat back you can pick them up from around $650 +
And for the 3" system you can pick them up from around $750 +
Add maybe $200+ for the stainless versions.
These prices are very rough estimates but again i would check with your tuner or mechanic first. Sometimes not worth the hassle of shopping around for the sake of saving a few bucks.

Cheers,

Andy.

[SXTASY_SSV]

Ive got Dual 3 inch cat back on the SSV ute atm and love it. For me its too quiet with just the catback itself and u really need extractors and good hi-flowing cats to get the tru sound but the quality of the xforce system for the price u pay is excellent. Looking at most other cars, the price of an Xfroce dual cat back is similar priced to most other system with just a single 3 inch pipe. The large tips also look the bizz too. The one thing I could fault is that the muffler and tips on the drivers side droop down a little, where as the passenger side one sits perfect. Maybe this can be adjusted somewhat.

[Wonky]

The one thing I could fault is that the muffler and tips on the drivers side droop down a little, where as the passenger side one sits perfect. Maybe this can be adjusted somewhat.

Unfortunately X-force seem to be all over the place with their tips. I've seen a few which were fairly bad on one side and fine on the other.

[bonners]

Ive got Dual 3 inch cat back on the SSV ute atm and love it. For me its too quiet with just the catback itself and u really need extractors and good hi-flowing cats to get the tru sound but the quality of the xforce system for the price u pay is excellent. Looking at most other cars, the price of an Xfroce dual cat back is similar priced to most other system with just a single 3 inch pipe. The large tips also look the bizz too. The one thing I could fault is that the muffler and tips on the drivers side droop down a little, where as the passenger side one sits perfect. Maybe this can be adjusted somewhat.

I met a forum member on Sat who has a 3" X Force on his SS Ute. Looked really good and the tips were fine on both sides. It sounds very good when he took off. I guess the drone issue isn't as bad for the ute guys.

[Nidz]

I swapped over a Sureflo system for a Xforce last week and I find it's much louder. I'm not sure what loudness resonator was fitted to it but it's certainly much smaller than the Sureflo one. The Sureflo seems to be oval shape while the X-Force is round and lower profile. I also find the X-Force does give some drone at certain rev ranges in cabin on the wagon. I'm thinking about putting some deadening in the back. It's definitely coming from the rear res. The sound is way better though. If your looking for that big V8 Grumble it's the system for you. I've got HM shorts, stock cats and X-Force dual 2.5" system.

[VE 348]

I met a forum member on Sat who has a 3" X Force on his SS Ute. Looked really good and the tips were fine on both sides. It sounds very good when he took off. I guess the drone issue isn't as bad for the ute guys.

I love the 3" and if you love the v8 sound the drone wont be that bad......I went on the hway with this guys SS and the drone was only small....and thats if you are looking out for it.....turn the radio on a little and its gone.

[QalaQ]

Guys I am from UAE

I want to buy full exhaust system from xforce and have question

My brother live in Malborn so he might buy it for me but the problem he don't know how to ship it to me? also, do you know how much does it weight ?

is there any shops that he can go and ask them about the prices !

thanks