I currently have the HKS setup on my Z. But i've been thinking about the Greddy Evo TT setup. I know the piping is defintely larger than the HKS Ti. Would i benefit from switching to greddy or should i stay with what i have now and tune it with unichip? Any inputs would be appreciated. Thanks..

 

Are you F/I or NA? The Greddy Evo TT was designed with turbo'd applications in mind.

 

I went from HKS Ti to Greddy Evo TT, for TT flow purposes only. I like the look and the sound of the HKS way more, but I needed more flow. With your N/A setup, I'd suggest keeping with the HKS. No point in taking a hit selling your HKS and pick up an Evo TT for minimal gains if any at all.

Good luck, but I'd keep the HKS.

 

From what ive read horsepower is actually lost when you eliminate backpressure on NA