[RAV]

Does anyone know if the 435i power up kit that adds 25 KW ( 34 HP ) will work on a 2013 335i. I know there is a 15 kw increase kit for this car. In a post in September 2013 this 25 KW increase kit was released.

[Mike_L]

The 35hp kit is for the cars with the 4" turbo outlet. The 20hp kit is for the older ones with the 3.5" outlet.

[RAV]

Thanks Mike:
Do you know what year the transition to the 4" outlet took place.

[Mike_L]

I believe it was July of 2013 builds.

[Sharp_Cai]

for the same money I would go for Dinan.

[F32Fleet]

I think there's a different ver based on ECU where the ECU has to be pulled and sent for programming.

[613Bimmer]

Originally Posted by Sharp_Cai

for the same money I would go for Dinan.

I'd do both. When they install the mppk, to my knowledge, it's like the edu is overwritten with a new base ecu map which leads to even higher gains with the Dinan piggyback. The Dinan piggyback with a regular n55 gets you claimed 360 hp claimed & 390 lb ft of torque (crank) while the piggyback with mppk gives you 364 hp claimed & 430 lb ft of torque (crank).