Andy1GP
///Member
For a DIY project a supercharger will be less hassle as you don't need to change the exhaust manifold and you keep the aircon and possibly stock injectors etc..
However I'm surprised no one has mentioned a 330d?
It's cheaper than a x35i much better on economy and pretty quick if you only do software.
Bear in mind an average pre LCI E90 330d auto or manual with software is already on par with E46M3 acceleration up at altitude. With just 50% better economy.
You can even find some for low R100k-R140k. Thats what I would buy if I were you.
However I'm surprised no one has mentioned a 330d?
It's cheaper than a x35i much better on economy and pretty quick if you only do software.
Bear in mind an average pre LCI E90 330d auto or manual with software is already on par with E46M3 acceleration up at altitude. With just 50% better economy.
You can even find some for low R100k-R140k. Thats what I would buy if I were you.