Performance Upgrades
I love my M35S. It's rated at 290HP and I would like to get it up around 350HP without spending a fortune. I see Cold Air intake kits (+10HP), performance chips
up to (+50HP) exhaust systems did'nt say HP inctrease. Can anybody tell me if these work, are the chips as easy to put in as they say? Any advise would be greatly appreciated. Thanks, BillG