I thought that Corsa was one of the only exhausts that didn't have that annoying rasp but between 2500 and 3000 it sounds like a farm truck with glasspacks, but I have no cats. I don't want to run cats and I don't want this blap blap sound. Would the 3.5" or 4" Mufflex with the Spintech get rid of this? Am I looking at more hp/torque or less? I love the way the exhaust sounds everywhere else! It already has a bullet in the I pipe which really strikes me as odd. I've heard of putting a short bullet in each section of the Y pipe, would this eliminate the rasp and still give me the nice metallic sound of the Corsa?

 

my buddy had spintechs on his gto and it was the raspiest thing ive heard next to a loudmouth 1.

 

I'm running Macs, ORYw/carsound cats and a mufflex w/4" spintech and there is very little rasp and its only there when I'm getting on it. It wasn't ever there when I had the longer tail pipes. A friend ran them on a Lightning and there was also no rasp.

 

i was wondering about GMMG im getting jet-hot LT's, 3in ORY, and MTI R1 cam how much rasp am i looking at?----andrew

 

That's going to be a lot of rasp and drone. You'll have to stick a XR-1 there to be able to tolerate it, unless you like it loud.

 

i have a mufflex 4" and i going to install it this week in place of my SLP ss exhaust muffler with custom Y and I pipe.So i let you know how it sounds next week.