Test pipe/ High flow cat
I'd go with a testpipe. ecodetuning, but make sure you do the NO CEL DIY. No CEL
Hey how much sound difference is there between the stock and the highflow cat on your car, also didnt you have a test pipe for a while, is there any difference there??
ORIGINAL: black991.8tq
i have the labree hiflow and i have had no problems with it.
i have the labree hiflow and i have had no problems with it.


