maf and throttle body diameter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Johnny Danger · 03-02-2013, 05:21 PM

Quote:

Originally Posted by Speedster986

JD

Need your insight on plenum upgrades for a Boxster 2003 2.7L.

I've read your past history comments & questions on this topic.

So what did you decide to do and what were your results?

Thanks for your help!

I've haven't done anything in the way of a larger TB or plenum at this point. So, I have nothing to offer in that regard. The only changes/upgrades that I have made to my vehicle relevant to this topic, is the addition of the EVO cold air intake, along with Pedro's TT2. It's difficult the quantify the overall improvement of these upgrades based on hp figures alone by virtue of the fact that they coincided with other upgrades. However, I can say that I'am please with the results. I do, however, hope to install a larger TB and plenum in the future.