Worthwhile 325i performance mods

[meddler]

Hi all

I have an E91 325i (N53 3.0) that’s been pepped up with an ECU tune. Been running it for 6 months since the tune and all is well.

I’m now wondering if there are any other worthwhile mods for these cars that squeeze out more performance without doing anything too drastic.

By performance I specifically mean improved hp/torque rather than suspension upgrade, sports brakes, etc.

Cheers!

[InitialDave]

Hmm, what are the differences with the 330i? Is there something like an intake manifold that's a straight swap?

[meddler]

InitialDave said:

Hmm, what are the differences with the 330i? Is there something like an intake manifold that's a straight swap?

There is but I gave up trying to find a reasonably-priced one to swap in and opted instead for an ECU tune without