Hey fellas. I have benefited from spool street for years. Thank you all. I have a 09’ 135i convertible and building a forged short block with head studs. I will be using a stock head with RB2+ turbos. I am running stg3 LPFP with PI full E85
I picked up a spare head and contemplating doing FIY port job and possibly upgrading my cams. Has any one out there tried porting them selves?
I picked up a spare head and contemplating doing FIY port job and possibly upgrading my cams. Has any one out there tried porting them selves?