AU XR8 exhaust note questions - Ford Forums

xr6turbeau · 03-23-2007, 00:44

Hi all

Just got a totally stock AU2 XR8 220kw. Whilst I love the car, it only sounds like a V8 at high revs and I'd like an all-round better exhaust note. I don't care about extra power (I'm between XR6 Turbos

) - I just want a better V8 note at idle and through the rev range.

Of course, every exhaust shop gives me a different answer and most recommend a full new system. Given that it already has a twin 2.25 system from the factory with twin centre mufflers and 1 rear resonator, I'd love to know your opinions on how each of the following will effect the exhaust note:

1. Removing the rear resonator and replacing with straight through pipes?
2. Removing the centre mufflers and replacing with high flow mufflers or hot dogs?
3. Removing centre mufflers and replacing with straight through pipes?
4. Single 2.5 inch exhaust with 1 straight through muffler?
5. Twin 2.5 with 2 straight through mufflers?

I'd love opinions from anyone who has done any of the above to a Windsor, particularly 1,2 and 3.

Thanks

Mark

Noboss · 03-24-2007, 04:52

Put two straight through mufflers under the floor, then remove the rear resanator merge it into one single 3in & replace it with a single 3in resanator.. Will sound good & you'll gain about 8 to 10 KW!!

paulhowes · 04-03-2007, 02:36

from the cats back mine has one large diameter hot dog type with another before the rear on each pipe. Still twin pipes, a total of 2 straight through jobs on each pipe spaced apart. The sound is great and gets lots of comments even from the holden crowd at work.

tonks · 04-14-2007, 20:57

on our xr8 220 i had the rear resonator removed & put straight thru pipes, only made a small difference, replace the centre mufflers with some straight thru type, will make a difference at a minimal cost

xr8 boii · 05-26-2008, 04:40

hey with my xr8, even though its a ute has a single system 3" from the cats back with a single straight through resinator and a lukey rear muffler. it has an awesome note but now i took the muffler off and have it dumping at the diff and now it really barks