Efficiency of stock MSP muffler?

[RiceCake]

I'm wondering how efficient our stock MSP mufflers are. I'm looking and getting some turbo back piping done and rip the cats out, but I might want to keep the stock muffler on there.

Any thoughts?

[MazdaSpeeder00]

Hope this helps.

http://www.msprotege.com/forum/showthread.php?t=59407&highlight=Stock+Muffler

[mspeed101]

I'm wondering how efficient our stock MSP mufflers are. I'm looking and getting some turbo back piping done and rip the cats out, but I might want to keep the stock muffler on there.

Any thoughts?You know im wondering the same thing because I wanna keep a stock look on the outside.

[BOOSTR]

If funds are tight, keeping the Racing Beat muffler is not a bad way to go. It is a performance muffler. I put on a Greddy SP2 system. My car feels better than when I had stock muffler on. The acceleration is smoother and the torque pull is stronger.

The bottleneck in our cars is the mid pipe / cat-resonator set up; not the muffler.

Just get a custom mid pipe and exhaust to muffler pipe. Good luck.

[biochembruin]

How loud is it w/out a resonator?<O:p</O:p

[BOOSTR]

My current system is an Apex 2.5 catless down pipe and the Greddy GP2 system. Its not loud at all. I was not looking for a loud muffler. I found it in the Greddy.

I'll try to post some sound clips later.