e55 strait pipes
Fabio Daniel
. put the Xpipe in the 2dary cats place & put the straight pipes in the resonator place 
The Xpipe need to be placed as short as possible to the exhaust manifolds (best place in our cars is the secondary cats)
Fabio Daniel
Last edited by longmeats; May 24, 2010 at 05:33 AM.
Trending Topics
The Best of Mercedes & AMG

This is the most efective sequence (with hi flow primarys for best)

Forgot to tell u. my car is an euro spec with 2 O2's sensors only (no CEL in the cluster when you mod the exhaust after cats) some US spec cars have 4 O2's sensors, if is this your case maybe you got a CEL with moded exhaust cause the ME detect a faulty ambient fumes.. if you have 2 O2's only no worry about
Fabio Daniel
Last edited by Fabio D; May 24, 2010 at 09:17 PM.
The picture fabio included is actually a good setup, mandrel bent w/ X-pipe and no 2nd cats. Granted it will probably sound decently loud and drone may be slightly an issue. But all things considered its probably the best way to make the most power out of the OEM system (that plus high flow primary cats).
Last edited by longmeats; May 25, 2010 at 02:55 AM.
The best route is to simply do Stage 4 (headers, pulley, cats/x-pipe, ECU). If you do all that the car will be seriously quick, and it doesn't cost much to do everything, probably under $2k total for parts. Used to be back in the day that would cost almost $5k







