Gernby

I'm considering having my OEM exhaust modified so that the mufflers are single pass instead of triple pass. It doesn't look like a difficult job (in theory), but I'd want it done well so that I don't lose power. Does anyone have any recommendations for a welder or shop?

BTW, I admit this is totally for sound. I really don't like the way it sounds now.

Before:


After:

Gernby

Thanks to some pictures from rjones of the internal design of the stock mufflers, I've totally changed my mind about modifying them. I now want to just replace them with some single pass mufflers (Magnaflow, Borla, etc.). I still need a welder, so any suggestions?

RyanDL

FWIW, the Comptech exhausts (if you like how those sounded) used a Dynamax Ultraflow muffler can. They're cheap, straight-thru, reasonably damped, and flow well. I'd give those a shot.

http://www.dynomax.com/mufflers.php

Ryan

Slithr

Try Pronto in Plano. On Central, just south of Park (I think) on the East side.

SpeedxRacer

Removing the resonator will give you more sound than removing the loops.

R Legend

I had them adjust my Spugen because it was rubbing before the split. Very nice guys and reasonable.

PsykotiK

swap the cat for a test pipe

Gernby

I already have a test pipe, and didn't really notice much change in sound. I don't know why I didn't think about cutting out the stock resonator, but after seeing the insides of the stock mufflers, I'm sure I want to replace them.

I started a thread about this in Modifications and Parts (here).

I'll have to do some measurements, but it looks like these would be a good fit for my '08. I don't know what labor will cost, but these items look like they would be about $250 shipped from Amazon. I'll check into Dynomax, as Ryan suggested.

5x8x14 Oval Satin SS, 2.25" In / Out (12225)
Polished Double Walled Oval Tips (35159)

Gernby

BTW, here are the pictures of the inside of the OEM mufflers that rjones sent me. I'm surprised they perform as well as they do.



Here is the CR muffler:

R Legend

Your not even kidding. That looks super restrictive.