I have the greddy tt setup and I was wondering if anyone out there has the helix test pipes with a tt set up? I saw one quote one time that if someone did not want the rasp to add a tt set up. My exhaust is much more quite with the tt. Almost out of $ The helix could save some money. Rich

 

Doubt it, never heard a raspy turbo car. Turbo really cuts the noise down, as you say.

 

I have them..no rasp at all. Like Baptist said....its highly unlikely you'll ever get the Turbo Z's to go raspy. My car is actually just a tad louder than stock...with the Greddy Evo2 and the test pipe.

At idle...you cant tell the difference.

 

Thanks gq 626

 

it actually sounds like a v8......very noticable on the sound and pull....