What did you do with/to your Boxster today?

[new986owner]

Could you give me a few pointers? i am new to porsche, came over from street bikes.
i have a 3.4 liter 987 plenum and 74mm tb. are these bolt on to m96 3.2 liter 986?

i am stumped how to repipe the 986 boxed air intake to the larger TB, and it seems fortunate timing y'all are also modifying recently.

[ike84]

My build thread is posted over in the DIY section. I doubt that a 74mm TB will bolt on to a 3.2 but it wouldn't be that difficult to do so (74mm = 3" which is what the stock intake pipes should be). If you do that though I would remove the spec airbox and fab a new CAI, the boxes on our system are very restrictive. As long as you don't change the MAF housing size you can do this without making any ECU upgrades, although a tune will be of help to get the most out of it. You can find a ton of info about this stuff on here.

[Stroked & Blown]

Originally Posted by new986owner

Could you give me a few pointers? i am new to porsche, came over from street bikes.
i have a 3.4 liter 987 plenum and 74mm tb. are these bolt on to m96 3.2 liter 986?

i am stumped how to repipe the 986 boxed air intake to the larger TB, and it seems fortunate timing y'all are also modifying recently.

The generally accepted approach is to use the 987 airbox. This is a better design and was used on the 986 550 SE to increase the HP of that model. There are a couple threads on this board on how to modify a 987 airbox to fit the 986.