Hello, people. I have an 89 318i M40 converted to M42, changed the whole wiring harness, engine, and all. I have restored my m42(had only 115000kms from junkyard) with all new gaskets, seals, rings, everything, lowered the head 0,1mm,full head/throttle porting,cold air intake(K&N) and advanced the admision 5 degrees.chassis with adjustbale konis, lowered 5cms, and MII factory bodykit, now I have bought on ebay an upgraded exhaust manifold,Front sparco strut bar,rear carbon/alluminum strut bar,and a chip claiming +16hp(152,6hp at 7150rpm). my question is, Will the admision advance interfere with the chip? any other suggested mods I can do to my engine? How about mustang injectors? any real gain on these besides better atomization?
Thanks guys.