[Novakbmw]

Can this be done to 3 litre 4 series diesel?

Basic question what does it do, what's the cost and how do you use it ?

[GEP77]

Originally Posted by Novakbmw

Can this be done to 3 litre 4 series diesel?

Basic question what does it do, what's the cost and how do you use it ?

MPPSK is a power upgrade and cat back exhaust system for the 340i and 440i. It is not available for the diesels.

There is a BMW exhaust upgrade for the diesels which adds an external sound generator ( diesels by their very nature have fairly quiet exhausts).

In addition BMW do a power upgrade for 330d and 430d cars which increases power to around 300hp. There is no equivalent kit for the 335d.

In general terms there are three different things you might want to achieve.

1. Power upgrade.

2. External Noise improvement

3. Visual improvement.

The first is better achieved by a remap from the likes of DMS, JF or tuning box from ACS etc to name a few.

The second can only really be achieved by using the BMW kit, however the noise is entirely fake.

The third is to replace the back box with either straight through pipes or to fit a 340/440i style back box. These can be sourced quite cheaply from people here who have upgraded their exhausts on their 340/440is. Mine for instance is available for sale.

[Novakbmw]

Thank you