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I am in the US and not sure how much work your suggestion is.... I wanted to start slow and do some mods that are not too invasive. Kind of get my feet wet first, then get more serious... How big if a job is the Modded Throttle valve and what does it do to my existing warranty. Thanks Steve

Thanks, any recomendations? I have the sport shift so that helps get the rpm and torque up. Thanks Steve.

At first looking for some quick and inexpensive enhancements that i could do myself and then take it from there. Is the easiest a cold air intake? Thanks Steve

Thanks for the feedback. I figured anythng hooking into the harness like that was not the best. Last performance chip I used actually hoooked directly into the computer. As for Intake, don't really have anyting in mind. I've been looking around. Any suggestions? I looked a bit at Cosmo, but...

Hi, I am new to the thread and new to BMW. I recently aquired a 2007 328i and am looking for some easy, low tech performance tips. It comes stock with 230HP, but looking for more. I came across BMW Surge Performance CHIP! and was wondering if anyone heard of it or recomended this type of chip...