i think i got plenty of clearance on the tunnel coz the car is also built for an inline 6 bout those high temp stuff is my problem. and the drive shaft does it cost to get a custom one that can support 300 hp. and its hard to find a indepedent rear end that can mount on the e30 with out making too much mod. even the m3 e30 only can support 200 hp. can you list more stuff that my problem that can get on the way