HKS is my favorite., but irs all up to you.

 

Greddy is mine, I have had it for many yeard

 

HKS Hiper 4" would probably make a GT35R spool much faster.

 

I use a racing beat beat and it sounds like **** I like the import sound and this thing is so quiet I have 3" stainless steel cat back the racing beat muffler

 

I personally think that as long as you get a good resonator an a good muffler its hard to make these cars sound bad. In my belief correct me if im wrong guys but the longer the muffler your more prone to get a deeper sound if im not mistaken.

 

They all sound good as I could go with any of them but my personal favorite is still the RE dolphin tail.

As great as straight pipe performs, I personally will run a resonated mid pipe to help tame the sound and cut down on the highway droning.