Stock exhaust question??

[xr8 007]

Hey all!! i was doing some searching through the aufalcon.com links and i had a look at one sight that mentions that the AUII xr6 vct exhaust is different than the AUI xr exhaust!! What are the differences in them? Its mentioned that the auii one is higher flowing,,how true is that?? Also on my AuII xr i have some sort of twin setup but the secondary pipe is sealed,, is it suppossed to be this way?? i hope i have made some sense!!! :

[EA2BA]

pics might help

[buickman]

I think you would find the XR VCT exhaust from S1-3 would be the same only the premium models fitted with the VCT differ from the XR series.

Fit a aftermart prformance exhaust system a big improvement over both factory set ups.

buickman

[Casper]

Ok, all VCT stock exhausts (S1-3) were a tiwn system setup after the cat. They were all the same size, identical in every way (except the first few hundred S1 VCT's....I'll get to that in a second.)

All the XR6 HP exhausts (S1-3) were identical the the Forte exhaust.

The first few hundred VCT's did NOT have the "blocked" pipe at the rear, they had the twin tips the same as the XR8. For some reason they changed this to the "blocked" H pipe setup (I think its some sort of noise control..not sure) and it stayed that way till the end of AU production.

Before you ask, NO, its not worth "unblocking" the H pipe, there is no performance gain to be had at all.....replace it all with a 2.5" cat back and you will see far better results.

[xr8 007]

aahgaghahahahaha,, casper u beat me 2 it!!!!! Yeah i'm definantly looking at a 2.5inch exhaust but i dont want it to be loud!! anyways thanks 4 ur input!!

[Axle-F]

Originally Posted by xr6007

aahgaghahahahaha,, casper u beat me 2 it!!!!! Yeah i'm definantly looking at a 2.5inch exhaust but i dont want it to be loud!! anyways thanks 4 ur input!!

i have a 2.5" zhorst as part of the JMM DEV3+ and its actually very quiet. in fact the orginal exhaust tip is still attached so most people cant tell its not stock (until they get in haha).

[xr8 007]

yeah,,,,cooooool!!!!! What brand is ur 2.5inch zorst dude and did u feel any difference in power??

[tickfrd6]

So I go and look under my car but can't seem to find this second exhaust that is blocked you are talking about.

[frd906]

WHAT A THREAD MINE LMAO

[tickfrd6]

Lmao well nothing new gets posted to I resort to thread mining ahahahha

[frd906]

Dont we all when we get bored,

Theres a pic somewhere in one of the threads of the blocked exhuast, ill see if i can find it

[tickfrd6]

Sweet thanks man. How do you go about unblocking it? Is it legal

[GS608]

Like casper said there is no point in unblocking it, you won't gain anything

[frd906]

Just bet off getting a cat back system, with extractors and a high flow cat,

[tickfrd6]

I could do that but I just can't afford it until next year because I'll be getting rims soon.

[frd906]

My exhuast cost me 300 includes the tip fitted, Its a custom one muffler setup, 2 and half inch system, been on the car for over 3 years now and havent once been done by the boys in blue

My extractors and cat i bought second hand

This is mine on the old motor, will have to do one agian soon

http://www.youtube.com/watch?v=dCq831Pcd9g

[tickfrd6]

Will there be much sound difference if I unblock the second exhaust?

[Stattic]

The only reason it's there is because ford only made one system for the IRS cars because they were far less common therefore it was too much hassle to make a 6 and an 8 catback. The v8 system obviously has 2 sets of headers and one makes use of the blocked pipe which isn't blocked
and don't unblock it it's a waste of time

[frd906]

Stock exhuast is useless anyways, no real point in unblocking it, just get ya self a cheap cat back with a resi,it will sound lil better then stock, but not over the top

Like mine lmao