A few forums have asked for a sound bite and discussed the Muffler Bypass. This clip is after the intake/flash/suncoast header/fabspeed muffler bypass.

The video doesn't do the deeper part of the exhaust note justice.

Anyone know if that much smoke is a problem???

http://www.rpm-photography.com/Videos/C4S.wmv

 

Depends if engine was cold during video clip, if not, I would do a cylinder leak down check.

 

I think it's burning way rich, ecu flash problem?

 

Hard to talk with my foot in my mouth, I agree with c4s surgeon that if it fell out of tune or not tuned properly check easiest first. Also for qwik check can try putting finger in tail pipe and seeing if it oil or fuel soot?

 

thanks, will check tail pipe. it was not a cold start, but was'nt run for an hour or so.

 

Looks like fuel smoke to me, oil tends to be a little more blue-ish.

 

I am hoping to get a similar sound with fabspeed Cat-bypass. I already have the headers and exhaust done.

 

That ish sounds MEAN.