Zo6Killa

Hey there,
I was wondering if exhaust manifolds from a 2002-2004 Z06 will fit on my A4 2000 C5, since in this one year, the exhaust manifolds have a different AIR setup and may be a little shorter in overall size. Will i need to modify the Z06 exhaust manifold in anyway, and if so what needs to be done???? Also, how much power will those years cast Z06 exhaust manifolds yield over B&B shorty headers????
thanks alot everyone in advance
-Dave

ajg1915

Probably won't give you anymore power. The real power of a Z06 motor was a combination of items and not one minor one.

Z06 engines had higher compression, different cam, intake manifold, exhaust manifolds, valves and springs.

Save your money for LT headers

Zo6Killa

Yes, you are very right. However i read a couple posts that have said those years of Z06's have cast manifolds and a much better design over the stainless, shorter manifolds only found on 2000 C5's. I have also read that this switch alone can add 5-8rwhp to 2000 C5's. I dont know if this is all true, but it must be to an extent.
thanks alot
-Dave

Zo6Killa

I have just found out that i may have manifolds from the 97-99 C5's because of the fact thati do not have pup cats. The manifolds on my car do have a stainless steel cover on them also.... Does all this information seem to line up??? The 97-99 manifolds came with this stainless steel cover over the manifolds and no pup cats??? If that is the case, do i have to buy aftermarket shorties for the years 97-99 C5's???
thanks everyone
-Dave