[supercarfreak]

Originally Posted by goktuk

im looking downpipe for my Z4 e89 3.5i (n54) but i cant find lots of options.
do you know e9x downpipe is it fitting e89?
and also intercooler. can i use same parts with e9x ?

for example:
http://store.activeautowerke.com/pro...i-downpipe-n54

can i use this for Z4?

and intercooler

http://store.activeautowerke.com/pro...-sport-version

first off buy yourself an ER intercooler, it is the best one in my opinion you can buy. Its amazing how fast it will able to cool your engine. Especially living in Texas, it a major plus for me. Secondly if i were you i would go with the AR CATLESS down pipe. It will probably be the best money you every spend, you will feel instant power change and the car is a lot more enjoyable. Heres are the link
http://www.evolutionracewerks.com/node/216

Downpipe.
http://www.ardesign.info/store/ajax/...roduct_id/647/

i also have a thread about the AR DOWNPIPE if you want to watch the video.