Originally Posted by Zuzu
Anyone here fitted the Cobb tune to their 1M..??
Specifically after replies to 1M fitment only and type of map/tune downloaded with boltons if any..
Before and after dyno results..
It was only a matter of time
Cobb only claims 4% increase in power, rather get that via hardware.
Why not try before you buy?? If it is good I'd be keen.