[Lates91]

Whats a better tuning chip for my 07' 328xi coupe: jb or bsm, or neither? Is it even worth it in for my car to have a chip?

[sickem]

bms powerbox is supposed to be good...but you'll spend 300 to get 8-10 hp. Not really worth it IMO.

[CJ421]

Your car isn't going to get much faster ... relatively expensive per HP gain. AA Tune is another one you can look into.
Other things you can do like the BMW Performance Intake - hardly any horsepower gain.

I suggest spending money on something else. If I had a 328, I'd drop in a BMW Performance Exhaust and make it sound nicer. Supposedly it adds a few HP at higher RPM as a bonus.

[FVM3]

NA is you pay much more and get much less hp then turbo

[engotski]

From much reading I've done, active autowerke

[arctic330i]

Not only is the AA tune powerful it also changes how the car drives, it's like a new car!

[Dark_Knight_335]

Originally Posted by sickem

bms powerbox is supposed to be good...but you'll spend 300 to get 8-10 hp. Not really worth it IMO.

I would like someone to prove this "theory". I owned the BMS, and all it did was give me a bad case of Toyota pedal.

[BudVlad]

Originally Posted by christopherchenm

NA is you pay much more and get much less hp then turbo

Not really. For much less money I got 292 hp with DS Motorsport tune on N53B30 engine and my car is 232 lb lighter than 335i. For the money I saved I did M3/Bilstein suspension conversion, big brakes conversion, Supersprint exhaust, BMW performance intake, 3.46 final drive, VMR wheels with Yokohama AD08 tires.
As a bonus I don’t have to deal with turbos and can enjoy NA engine drivability.