[Sonic Motor]

A review from a recent happy customer.

Originally Posted by s13asher

I haven't heard any of the other ISIS exhausts other than the 4" blast pipes i just recieved from them last week, but i'm highly impressed. This exhaust replaced my 3.5" Motoria N1 type on my mildly built blacktop sr20det - and i'm more than satisfied with it. Yes, the exhaust outside the vehicle under heavy throttle is slightly louder than the typical N1, however the volume inside the car is in some instances quieter.

cliff-notes and tidbits:

- i needed to tweak the rear hangars a little with a torch to get it to fit with my aero (expected)
- engine no longer bucks under 2000rpm with throttle applied
- cute little turbine whine emits from exhaust during normal driving conditions
- Corvette owners get jealous

Exhaust fitment after the tweak on my busted tapped out POS aero:


-asher