Hey does anyone know if the HKS Hi-Power Exhaust work with the stock down/mid pipes? It says on JSC Speed that its designed for an after market downpipe. I would get a downpipe too but I dont want to run into the problems with that like having no cat and emissions. Also I wouldn't know what to do about the O2 sensor. Thanks
it will fit up to your stockers but it will leak slightly. the stock flange is a piece of crap and doesn't fit great to the aftermarket flanges. you will get sound from it no horsepower gains at all. dp will give u more power. do a helix highflow catted.
I got HKS Hi Power before I got my DP.Had it for about a week.Loved it no leaks.Noticed gains.Then I got my turbo manifold,UP,and DP. If you want it, get it.You won't be disappointed!Thumbs Up
i ahve the hks hi power and it runs fine with the rest of my stock pipes... 17hp gain
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