[Alloytec] VZ SV6 - exhaust rear pipe

[newjack]

Hi everyone,
Before all the '6 will never sound like an 8', 'dumbass p-plater' etc etc..

I know with the catback centre and rear pipes you should run a 2.5" pipe at largest due to the back pressure,

Wondering if it's possible to run a REAR PIPE of the catback with a 3" straight pipe (all joined onto 2.5" centre x pipe with mufflers to dual high flow cats etc into headers..) without losing too much overall power.

Car- VZ SV6 (190kw) 3.6L alloytec

Thanks
J

 

[EYY]

Use a single 2 1/2 rear section with a resonator. Without a resonator, a v6 commodore will always sound pretty shocking and obnoxious.

 

[newjack]

I don't mind it being obnoxious since in everyone else's eyes we are already labeled as a ########.. Just the look on the old peoples faces **** me up the wall. Government brainwashed to live in society a certain way. So I say to them f ya if you don't like it.

I have it currently on a 2.5" rear pipe with a resonator. Was thinking 2.5" or 3" rear pipe without the resonator

 

[Sandman]

Don't do it. It will sound like ****. Mine had no rear muffler when I bought it, droned like a motherfkr and sounded just generally bloody horrible. But if that's what you want I guess then go for it.

 

[Kiddo]

I don't mind it being obnoxious since in everyone else's eyes we are already labeled as a ########.. Just the look on the old peoples faces **** me up the wall. Government brainwashed to live in society a certain way. So I say to them f ya if you don't like it.

I have it currently on a 2.5" rear pipe with a resonator. Was thinking 2.5" or 3" rear pipe without the resonator

Stick with a 2.5", WITH resonators/mufflers.

It's not about being obnoxious because everyone thinks you are (Which you are if you give in). It's because without them, the sound waves will cause a resonance within the cabin, making it a horrible place to be. I've been in the back seat of a vehicle that droned so bad, i felt physically ill. Seriously.

NAAF actually makes a catback system almost exactly to the original one you described! So I would personally get one off him

 

[newjack]

Had a fairly droney vx where my interior parts would vibrate a fair bit. Loved every second of it (had it for two years).
Thanks fellas for the replies, I appreciate it!

 

[commodore665]

Don't do it. It will sound like ****. Mine had no rear muffler when I bought it, droned like a motherfkr and sounded just generally bloody horrible. But if that's what you want I guess then go for it.

When I had a Ecotec ,I put on a 2.5 inch cat back and headers , at idle nice and burbly , and throttle , not so much , I'm resisting the urge to upgrade the zorst opn the SV6, but might go for some dual tips for the looks only .

 

[EYY]

I don't mind it being obnoxious since in everyone else's eyes we are already labeled as a ########.. Just the look on the old peoples faces **** me up the wall. Government brainwashed to live in society a certain way. So I say to them f ya if you don't like it.

Don't be part of the reason that p platers have a bad reputation. It ruins it for the rest of us that tastefully modify cars by making the media, and the public generalise that all 'car guys' are inconsiderate and selfish.

 

[Sandman]

When I had a Ecotec ,I put on a 2.5 inch cat back and headers , at idle nice and burbly , and throttle , not so much , I'm resisting the urge to upgrade the zorst opn the SV6, but might go for some dual tips for the looks only .

These days I have the stock system with a resonator where the rear muffler would be. Not too loud but has a little bit of a note to it, so sounds ok.

 

[bob builder]

when i was 17 i thought a straight 6 with a twin system sounded good, emu export tasted awesome and oysters were shite.
I have since changed my opinion on the above.
cant put an old head on young shoulders,everyone has a turn at that if you live long enough.

its simple,
you either want the noise more than the power (3" cat back)
or the power more than the noise (less than 3")