Redback twin 2.5 inch exhaust

[whitels1ss]

Hi everyone, new to this, first time on. I am thinking about fitting a twin 2.5 inch Redback (cat back only) system to my bone stock boring extra quiet vt gen3 ss. Anyone have an opinion? How much power and economy do you expect I should gain or loose? (One guy I know told me it will lose power and economy but I cannot really believe that.) Is it worth doing? I am just sick of the boring quietness of the stock system. Thanks.

[BLACK 346]

You will not lose power replacing a stock VT system.
For what it is worth, mine pulled 200rwkw on Sams
Performance Dyno with a Redback catback as the
only mod.

[TUFFIE]

Ok It has to be said:search:
Lots of info on here mate just try the SEARCH BUTTON

[angelo.vs]

Ive got a Redback twin 2.5 and Im happy with it. Perfect sound for me, no drone and certainly noticed a possitive difference compared to the old system. I also have the MCAI 2 hole mod. Also as said above, search.

[whitels1ss]

Thanks for your advice guys, I could not understand how you could lose power with taking away so much restriction, please pardon my igrorance but what is MCAI 2 hole mod?
Thanks again.

[VU_SS_UTE]

I've got a redback twin 2.5", and they sound turd compared to a single system!
Go a 3.5" single, or even a 3".

See sponsor Sureflo for the best ones kicking around.

[angelo.vs]

Monaro Cold Air Intake 2 hole mod. Type that in the search box.

[ace078]

Red back all the way!!!! I have 2.5inch, also H&M Try Y's for the headers and just straight through for the rest in 2.5inch mild steel, yes, mild steel, sounds much more oldskool than stainless.

[Curtis-R]

Thanks for your advice guys, I could not understand how you could lose power with taking away so much restriction, please pardon my igrorance but what is MCAI 2 hole mod?
Thanks again.

yep I fitted one of those systems to my mates 2000 VT SS. Had a good note
and there were definately performance gains. Good value system as well ;)

[gasguz]

I've got a redback twin 2.5", and they sound turd compared to a single system!
Go a 3.5" single, or even a 3".

See sponsor Sureflo for the best ones kicking around.

I agree with this, I have a single on the SS & twin on the R8 & the SS sounds heaps tougher than the twin.

But it is whatever you like though

[BLACK 346]

I've got a redback twin 2.5", and they sound turd compared to a single system!
Go a 3.5" single, or even a 3".

See sponsor Sureflo for the best ones kicking around.

Absolutely, no comparison note wise, the Sureflo 3.5 shits over
all comers imo.

[TUFFIE]

Absolutely, no comparison note wise, the Sureflo 3.5 shits over
all comers imo.

Could not have put it better myself. Mate best advise I could give you is have a listen to both systems before you go spend your cash.:deal: :teach:

[whitels1ss]

Thanks for all your opinions, It is great to be able to hear from all these people that have been there and done that! This forum is very usefull. I might have to check out the 3 and 3.5 also! Thanks again.

[OPPYLOCK]

I have a redback system on mine and they do sound quite shit until you take the rear resonator off (just 2 mufflers in the middle). Mine sounded pretty good until I got a cam and now it sounds downright angry!!!
The redback systems are a good exhaust and quite cheap but if I were to do it again I would go a Di Flippo dual 2.5. They seem the best for perfrmance but not necessarily sound.

[VU_SS_UTE]

I have a redback system on mine and they do sound quite shit until you take the rear resonator off (just 2 mufflers in the middle). Mine sounded pretty good until I got a cam and now it sounds downright angry!!!
The redback systems are a good exhaust and quite cheap but if I were to do it again I would go a Di Flippo dual 2.5. They seem the best for perfrmance but not necessarily sound.

I have a redback without the rear res, and it sounds crap compared to single systems!

DiFilipo (im 99% sure of this) just use redback mufflers anyway, so there cant be too much difference.

[12 inch man]

i hade a sureflow fitted to my ss ute (catback) got the medium level fitted and it sounded like a vacum cleaner . took it back and said it sounded shit so they fitted to bloody hot dogs to it:werd:
it sounded a bit better but the drone........... grrrrr
pulled it of 3 weeks later and got a red back system which i was very happy with and alot cheaper
highly recomend them

[BLACK 346]

i hade a sureflow fitted to my ss ute (catback) got the medium level fitted and it sounded like a vacum cleaner . took it back and said it sounded shit so they fitted to bloody hot dogs to it:werd:
it sounded a bit better but the drone........... grrrrr
pulled it of 3 weeks later and got a red back system which i was very happy with and alot cheaper
highly recomend them

Looking forward to Greg's reply on this one.

[VU_SS_UTE]

i hade a sureflow fitted to my ss ute (catback) got the medium level fitted and it sounded like a vacum cleaner . took it back and said it sounded shit so they fitted to bloody hot dogs to it:werd:
it sounded a bit better but the drone........... grrrrr
pulled it of 3 weeks later and got a red back system which i was very happy with and alot cheaper
highly recomend them

My redback sounded ok too when it was just the cat-back, once pacemakers and cats were on it, the sound is not the best!

Also Sureflo pretty much guarantee drone free systems so you probably should hae gone back and seen them.

[robmcg]

I have a VX Calais International LS1 twin-cat twin-box 2-1-rear box and it's silent and I don't know what to do to make nice sound!

I like torque 2,000-5,000 too.

Opinions invited.

Rob

[klink]

Thanks for all your opinions, It is great to be able to hear from all these people that have been there and done that! This forum is very usefull. I might have to check out the 3 and 3.5 also! Thanks again.

Hi,

i have a redback 2.5 twin going into a single 3inch for something different from the above, with pacemaker headers 1 3/4 4-1's

if you would like a listen, pm me and we can catch up.

what area of SA are you in.

[BLACK 346]

Hi,

i have a redback 2.5 twin going into a single 3inch for something different from the above, with pacemaker headers 1 3/4 4-1's

if you would like a listen, pm me and we can catch up.

what area of SA are you in.

Do Redback make that setup now? I had the 2.25 into single
3 inch, then went to the full twin 2.5 prior to my sureflo single,
but did not know that they made a twin 2.5 into 3.

[klink]

Do Redback make that setup now? I had the 2.25 into single
3 inch, then went to the full twin 2.5 prior to my sureflo single,
but did not know that they made a twin 2.5 into 3.

well, all i know is thats what is on my car pipe ing wise with redback boxes so i cannot answer that as the exhaust has been on the car for 2 years aprox, my brother put the cat back on before i bought it.
http://www.redbackmufflers.com.au/ProEx_New/index.htm just scroll down through the list.

i just need a cam like yours, then i will have to decide if i like my sound or yours.

[BLACK 346]

well, all i know is thats what is on my car pipe ing wise with redback boxes so i cannot answer that as the exhaust has been on the car for 2 years aprox, my brother put the cat back on before i bought it.

i just need a cam like yours, then i will have to decide if i like my sound or yours.

No worries mate, nearly 5 years since I had the 2.25 into 3, they
have probably changed heaps. Had a lot of comments about how
good my full twin redback with magnaflow cats sounded, but I never
really like it,hence the sureflo 3.5, go figure :werd:

[klink]

No worries mate, nearly 5 years since I had the 2.25 into 3, they
have probably changed heaps. Had a lot of comments about how
good my full twin redback with magnaflow cats sounded, but I never
really like it,hence the sureflo 3.5, go figure :werd:

yes well i dont mind mine, as i didnt pay for it, will be interesting when i get motivated and get the magic stick should be fun, i know what yours sounds like with the stick. Done anything regarding your clutch yet?

[OPPYLOCK]

Hi,

i have a redback 2.5 twin going into a single 3inch for something different from the above, with pacemaker headers 1 3/4 4-1's

if you would like a listen, pm me and we can catch up.

what area of SA are you in.

Mine had the exact same set up on it when it was fitted. Had a really different sound to most LS1's. Then I had my mate cut it where it merged into 3in and had two 2.5in pieces straight thru. To be honest it probably sounded better with the 3in pipe but then I went and got a cam so it ended up sounding great anyways.

[BLACK 346]

yes well i dont mind mine, as i didnt pay for it, will be interesting when i get motivated and get the magic stick should be fun, i know what yours sounds like with the stick. Done anything regarding your clutch yet?

Not yet, I will drive it until it dies, and with no track here that could
be a while. When did you hear mine?

[klink]

I was out at Your mechanics when you picked it up after p/steer, i had just ducked out to get some bolts for him.

[BLACK 346]

I was out at Your mechanics when you picked it up after p/steer, i had just ducked out to get some bolts for him.

Ah, must not have missed you by much.

[VU_SS_UTE]

Do Redback make that setup now? I had the 2.25 into single
3 inch, then went to the full twin 2.5 prior to my sureflo single,
but did not know that they made a twin 2.5 into 3.

All the LS1 systems are twins to begin with, even the Sureflo 3.5" single is twin 2.5 until after the merge pipe...

[BLACK 346]

All the LS1 systems are twins to begin with, even the Sureflo 3.5" single is twin 2.5 until after the merge pipe...

Yeah, I know that mate, I have a Sureflo 3.5 single.
I was querying if Redback make a 2.5 twin into 3 inch
single, I know they used to make a 2.25 twin into
3 inch single as I had one.

[whitels1ss]

Hi,
I am in the south, thanks for your kind offer, but no point in me listening because it will probrably tempt me and I really don't want to do much more than the cat back and a cai.
Thanks again though


Hi,

i have a redback 2.5 twin going into a single 3inch for something different from the above, with pacemaker headers 1 3/4 4-1's

if you would like a listen, pm me and we can catch up.

what area of SA are you in.
Hi, Sorry for repeating myself here but not used to these forum things yet, but, learning.
Thanks for your kind offer to listen to yours, but I only want to unblock this choking, blockiing, restrictive thing they call an exhaust system a little so it can breate a bit better, I wont put a set of extractors on, just want a cheap freshen up!
thanks again.

[klink]

thats cool, if you change your mind let me know.

im down south at least twice a week or out north the same.

[nthnbeachesguy]

Had my redback system on for a few years now and im pretty happy with it. The sound is great i had the rear reso's removed and it got the note i was after. It has a bit of drone to it but i dont mind, probably being a ute with an empty tray doesnt help matters.

[MNR-0]

Redback is rubbish.

What do you expect for something that costs $250?

By all means, don't let my opinion distract from people blowing $900+ on a tune, $600 on an OTRCAI, $400 on a UDP, $500 on tyres, $1000 on a stallie or rip-shift and tex, then fit a shitty $250 exhaust system. Numbers don't add up.

[BLACK 346]

Redback is rubbish.

What do you expect for something that costs $250?

By all means, don't let my opinion distract from people blowing $900+ on a tune, $600 on an OTRCAI, $400 on a UDP, $500 on tyres, $1000 on a stallie or rip-shift and tex, then fit a shitty $250 exhaust system. Numbers don't add up.

I may be wrong, but didn't Markone2 run into the 11's with
a Redback? Mine is long gone, only because the sound it
made did nothing for me.

[klink]

Redback is rubbish.

What do you expect for something that costs $250?

By all means, don't let my opinion distract from people blowing $900+ on a tune, $600 on an OTRCAI, $400 on a UDP, $500 on tyres, $1000 on a stallie or rip-shift and tex, then fit a shitty $250 exhaust system. Numbers don't add up.

Why do you class them as rubbish? is it because they are cheaper than other brands, not stainless?

Is it the quality of the steel used or is it the muffler.

Please explain your opinion as to me it looks like your knocking them just because they are cheap in price.

[10sec_rx7]

Redback is rubbish.

What do you expect for something that costs $250?

By all means, don't let my opinion distract from people blowing $900+ on a tune, $600 on an OTRCAI, $400 on a UDP, $500 on tyres, $1000 on a stallie or rip-shift and tex, then fit a shitty $250 exhaust system. Numbers don't add up.

uncle ran 11.6@117 with a dual 2.5" redback...
i ran 12.1 unopened with the same exhaust on my car

they work pretty well for the price.

[highlander_69r]

i run the redback on my cammed ss, although minus the rear res. I find it quite good, it gives a nice v8 note and doesnt drone.

not everything in life has to cost the earth for your car, exhausts are a personel choice and frankly i dont see the point in putting 2 or 3 g into a zorst when i wont keep the car that long.

[BLACK 346]

i run the redback on my cammed ss, although minus the rear res. I find it quite good, it gives a nice v8 note and doesnt drone.

not everything in life has to cost the earth for your car, exhausts are a personel choice and frankly i dont see the point in putting 2 or 3 g into a zorst when i wont keep the car that long.

A Redback with no rear res that does not drone? Mine without the
cam droned like a biatch, what you done to yours to stop it?

[klink]

Hi Rod,

i dont have a rear res on mine and it only drones at 2k rpm in any gear below or above its fine.

Paul

[BLACK 346]

Hi Rod,

i dont have a rear res on mine and it only drones at 2k rpm in any gear below or above its fine.

Paul

Hey Paul
Cant remember if my twin into single redback droned, been quite a
while since I had it, and didn't have it for long. The twin 2.5 droned
quite a bit at any revs below around 2200rpm. I decided it had to
go before we took the trip down the middle, and also thought it would
be very loud with the cam (it was pretty loud without a cam).
Cheers
Rod

[highlander_69r]

i have heard heaps of people complain about droning in there systems, not all of them redback.I am not sure why mine doesnt , maybe just lucky. I must agree it is rather loud with a cam but nowhere near that of others i have heard around the traps.

[MNR-0]

You get a well matched pipe size to the engine, throw in some free flowing CATS (or lose em altogether) and bung on some free flowing mufflers and there you have it. All you need to let your LS1 breathe.

Never said they didn't work. But they are what they are - cheap. Had one for 6 hours. Melted my rear bumper and sounded shite. Not old school at all. No power gains over my old 2.25" catback (which is now rubbish too)

The muffs. - nothing to them. Very little sound deadening at all - almost a 3" pipe in itself with some packing around it.

Quality? For $250? Seriously... But, if money is tight (and I was trying diff. things back then) then this is a very cheap mod. Just be aware that you are buying a cheap system and you won't be disappointed.

Quality is often about fit, sound, flow, bends, scavenging and durability. You get all them mixed into the same bag and you have a decent exhaust.

Take your pick:

Good + cheap + quality

But you can only have 2. Settle on that and you are set.

They are good value for money. But they are still crap as far as decent exhausts go. Anyone can make a car sound loud and go fast. Making it sound quiet and go fast, well...

That's my opinion anyway. :thumbsup:

[vx execer]

I had a listen to a 3.5" single the other day as I am im looking for a new exhaust and I have to say I was not that impressed after reading threads on the forum of how people rave about them. It did not sound half as loud (its the LOUD one) or deep as some twin 2.5" systems I have heard. However to be fair it didnt have extractors and the engine was completely stock, do extractors really make that much difference???

[klink]

You get a well matched pipe size to the engine, throw in some free flowing CATS (or lose em altogether) and bung on some free flowing mufflers and there you have it. All you need to let your LS1 breathe.

Never said they didn't work. But they are what they are - cheap. Had one for 6 hours. Melted my rear bumper and sounded shite. Not old school at all. No power gains over my old 2.25" catback (which is now rubbish too)

The muffs. - nothing to them. Very little sound deadening at all - almost a 3" pipe in itself with some packing around it.

Quality? For $250? Seriously... But, if money is tight (and I was trying diff. things back then) then this is a very cheap mod. Just be aware that you are buying a cheap system and you won't be disappointed.

Quality is often about fit, sound, flow, bends, scavenging and durability. You get all them mixed into the same bag and you have a decent exhaust.

Take your pick:

Good + cheap + quality

But you can only have 2. Settle on that and you are set.

They are good value for money. But they are still crap as far as decent exhausts go. Anyone can make a car sound loud and go fast. Making it sound quiet and go fast, well...

That's my opinion anyway. :thumbsup:

Thats cool, least we now understand where your coming from.

I believe you can have all 3, good + cheap + quality, guess it really depends on who fits it, whether they just use redback mufflers and make there own piping etc. as i know i have redback mufflers but cannot say if the piping is redback as it has no markings on it.

mine sounds ok to me and several people have commented on it, i know of a cammed car with a redback mufflers on it yet is different to mine from cats to mufflers so i guess it depends what people want when they order them from the exhaust shops. both 02 vx ss m6. 2 diff exhaust shops in adelaide.

so really you cannot judge/compare systems untill you actually look under the cars.

[VU_SS_UTE]

I had a listen to a 3.5" single the other day as I am im looking for a new exhaust and I have to say I was not that impressed after reading threads on the forum of how people rave about them. It did not sound half as loud (its the LOUD one) or deep as some twin 2.5" systems I have heard. However to be fair it didnt have extractors and the engine was completely stock, do extractors really make that much difference???

Extractors and cats make a heap of difference to both loudness and note!

Once you've heard a car with decent extractors cats and 3.5" single you'll wonder why anyone bothers with twin 2.5s, trust me. I wish i'd heard one first so I didnt have to buy the cat-back again.