I didn't change it very much, but it made a big difference. My old system was 2.5" stainless, all mandriel bent except for 1 pressure bend at the rear. It used a moroso spiral flow as a presilencer, and an ebay apexi n1 style muffler. I tossed the ebay muffler in the trash, hated the way it sounded after hearing my car run open downpipe/presilencer I reused the downpipe and presilencer, still ran it under the axel, but raised it up 1" and got another mandriel bend for the rear section. So now after the presilencer it's all straight pipe What suprised me the most is it's actually QUIETER. It has a much better sound, and now it doesn't scrape on speed bumps anymore. I'll have to get some video of my car soon, but it's tough since the only place I can get the vids onto the computer is at a friends house.

-Matt

 

thats awesome, sounds like u did a pretty good job... my last 7 was a 88 TII, i had a 3" down pipe to a 3" straight pipe... that thing was stupid loud, but sounded great imo