I'm trying to decide which of these two exhausts to buy. Any comparitive info anyone can give would be greatly appreciated.

 

It comes down to looks on this one. Though the Apex'i GT does have 3.75" piping compared to the HKS 3" unless you are really really pushing for every singe HP you can get they both flow great. The Apex GT is louder but there is the silencer.

I have the CF Ti and have no complaints. I've had the HKS Turbo exhuast, G Power Medallion, Racing Medallion, Hiper and Hiper CF Ti. I like the CF Ti...well at least for now.

 

the HKS ti should have a little bit better low end considering its 3" creatif more back pressure. the GT 3.75" should have better top end.