The APS DR Series 3.5" Turbo to Tip Race Exhaust is a true 3.5" internal diameter exhaust system through each and every section. 3.5" pipe into rear single muffler with a no-nonsense 4.5" stainless steel tip.

 

Its the way to go. Saving my pennies right now to get it. Personally....i think its the only good looking TB system out there for a decent price.

My buddy bolted it on his nearly stock STI and shaved off more then a half a second on his quarter mile.

 

Can anyone confirm fitment on the MR? I heard it fits the evo7.

 

I am selling my APS since I am parting out the car! Check the sig.

 

I have the 3" APS and it sounds great and the gain is very noticeable. At idle is a bitt deeper and loude than stock. It does sounds a bit better on an STI because of the boxer engine. The 3.5" is way too loud in my opinion and it does not improve performance of your Evo unless you are putting crazy HP like above 600 or so.