Originally Posted by carrerarsr
When I fitted a box to my 163bhp 320d and todays addition I noticed a throttle response difference even pulling off the drive and down my road. It feels like you are using less throttle pedal travel for more accelaration.
I am sure once yours is working it will be noticeable, as long as your not expecting 335d performance
you sure its a 163 m8 i thought end of 07 it was 177 and yours is a 08 and it hasnt got a down turned tail pipe unless is has a DFP