EK9 Exhaust comparison (Top Speed)
Same track and both EK9 with same engine (b16b), 4,3kg flywheel and Spoon ECU. EK91: OEM Cat, 5Zigen Proracer Spec A Catback (normal) vmax ...
How to perform a Seafoam tuneup (Also called Top Engine Clean)
This is a carbon deposit cleaner that when used can help eliminate the carbon deposits that build up in the top end of your engine block. I ...