Power Effects tunable muffler on my 1996 Eclipse Spyder GS

Power Effects muffler tip fits perfectly in the cutout in the rear bumper cover

Tunable muffler butterfly valve when opened fully.
The muffler pretty much becomes a straight through pipe

Tunable muffler butterfly valve when closed.
Causes exhaust gases to travel in a spiral around the muffler core

See the Power Effects Home Page for more info.