its going for 580 bucks which is a 100 dollars less then it originally is. But thats still alot considerny they were selling the greddy sp for 375 before they discontinued it. It does say it gives out more bhp then it did witht he greddy. greddy was 8-10 while this is 10-12. i know they exagerate this some, but for some reason they say it gives out more then the greddy sp. does anyone have this exhaust? is it worth this much?

heres the link:
http://www.performancecenter.com/products/...CELICA&sf4=2.2l

does anyone have an idea?

5zigen usually has quality products?

do not many people know about this exhaust?

No, most people either have the greddy or a custom setup. I dont know anyone with this exhaust.