Has anyone used them and if so your opinon on them? im was planning on using them onmy lt1 383 when i build it

 

I've seen/heard the Mufflex 3.5" and 4" systems using a SpinTech dual outlet muffler. But I have never seen a complete SpinTech exhaust. It that something new?

 

no im srry i posted that wrong i meant to say spintech mufflers my fault

 

There is a sound clip of the SpinTech on the Mufflex website.

http://www.mufflex-performance.com/

 

I have a 3 1/2" single spintech muffler. It was part of the Mufflex 3 1/2" system. I modified the 3 1/2" exhaust pipe and added a qtp cut-out for a FI application. I also added a 3 1/2" 3-disc CCI insert to quiet the exhaust w/o the cats since they were obliterated by the exhaust flow. The Spintech is a chambered muffler and flows good, but, the CCI insert was necessary to reduce resonance @ 2k rpm. I'm still using the Spintech. B.