What can I expect bhp wise of these mods I'm getting done?
Hello all, not sure if I'm posting in the right section here! In 3 weeks my standard 05 r53 cooper s is going in for the following upgrades,
17% pulley reduction kit
Orrange stealth induction
Bosch 550cc injectors
Colder spark plugs
what roughly can I expect to gain? I'm hoping for 230bhp. Thanks.