As stated in the description, these are greatly constructed and the quality is very impressive. Direct bolt on to my 2004 WRX/STI Impreza. Slight small modification needed to be done to the pinch weld of the "U" Subframe nothing major,slightly bent small portion for clearance. Also if you are running a mishimoto radiator consider lower right arm of the right fan for a slight modification also.again, nothing major (15min) worth of time.
My question to anyone running these,or has knowledge of them, the car had already been "upgraded " with an Invidia exhaust system, from turbo back.hi-flo 3.5 in exhaust stainless with only a low resistance muffler(lack or a better way to say it). No resonator/ no cat. What i noticed was i lost quite a bit of low end tone on the exhaust tune. I would like to get that back or look at options to cut the higher frequency " snap" off the exhaust tune. Does anyone have any suggestions on this? Maybe add, change, something altogether?. I am happy with tge performance of the exhaust system as a whole, i would just like to cap the higher frequencies some. Thanks