jjandros

iTrader: (7)

I currently have an S4 n/a that I'm in the process of gathering parts to do a full rebuild with mild port. I have both the stock exhaust as well as a full REV II Racing beat exhaust. Has anyone figured out a way to fit the REV to onto an N/A before? It's just sitting around and I'd rather use what I have from previous cars if I can. Throw up thoughts, pics, and links if you've done it or have any info on the possibilty. Thanks in advance.

-JJ

j9fd3s

iTrader: (3)

you would need to make a pipe that went from your headers to the pre silencer, but other than that it works fine

GuiltySoul

iTrader: (7)

I've installed a rev2 on my na before, the y pipe is shorter then stock so it won't reach the midpipe/cat and it also faces the other direction. I had to make a short adapter pipe to complete the system. If you know how to weld make your own pipe or take it to a shop and let them make u one. Hope this helps

jjandros

iTrader: (7)

So basically drop the down pipe off the system. Run the stock header and presilencer and weld up a flanged adapter pipe between the two (I'm guessing a 2"to 3" or so adapter is needed to then, not looking at the exhaust right now). I'm I getting what you guys are saying? For those who have run it how did you like it? Secondary ports still have enough back pressure to operate? Sound any better than stock? Anybody have pictures I can reference?

Thanks for the quick reply by the way.

GuiltySoul

iTrader: (7)

Sounds like a racing beat exhaust lol. As far as your 5th 6th ports, as long as you have the split air pipe to the presilencer you dont have to worry so much about the back pressure

jjandros

iTrader: (7)

Man am I glad I decided to just ask. I was gonna over engineer it massively. I was thinking Id have to have some kind of turbo header, then weld up an adapter from there to connect directly to the down pipe. So much easier just using it as a modified cat back. Thanks boys.