i got my APS ST about a month ago...now i need to add a new exhaust cause before i was running with a stock exhaust and my car couldnt get the air out so all the boost was just wasted. Soooo i was thinking about getting the HKS Hi Power but i heard it wont fit with a ST cuz theres only one outlet. And the APS exhaust is for the 350 and for it to work on a G35 they have to custom pipe somet hings. What are your suggestions?

 

Go jic. i got the stainless piping with the titaniun muffler with resonator. power jumped 50whp from the boost staying up through the rpm's. if you don't get the resonator the flow will be as good as the aps exhaust, but might be louder. i have the aps st with the aam spacer and jic exhaust. i push almost 390(386 to be exact)whp and 402 trq on a dynapack.

 

be careful with the JIC tho, i had it and my boost tapered off, until i had the resonator cut out and had a 3 inch pipe welded in its place. now it hold all the boost. its not really any louder.