The oems have made the cars harder and harder to crack over the past few years.
Originally Posted by dtc100
I am not sure if tunability has to do with how open the manufacture is with their ECU code. I know with the E90 N52, the German tuners who have greater access to BMW codes have a huge advantage over the US tuners. They could tune the N/A I6 to 290+ hp with all the bolt ons.
'98 M Roadster+'06 Saab 9-5 Combi 5mt
'11 Saab 9-3 XWD
'13 M-Sport 328i 6mt FOR SALE
E36/7: Dinan/RMS stage 2+ blower@13lbs of BOOST! 18" BBS LM's, too much more to list
F30: ForgeStar F14 19's summer-OZ Superleggera 17's winter/Rogue Catback/Integral Audio/AFE intake scoop/BMS stage 1