Exhaust System Testing- I need input

[jwade]

What headers and mufflers do you know of?

Maybe these guys will offer you some test mules?? No cats here on either, but I understand you can reflash the dme for RoW software that will disable the CEL issue in it's entirety.

Headers:

http://www.scargoracing.com/html/boxster.htm

and

http://www.turbowerx.com/Porsche_Products/Headers/986_Headers/986_Headers.html

[tholyoak]

Jake,

I think you will find all of the aftermarket headers designed for the 986 motors marginal for even a stock 3.4 engine in a 986 chassis, certainly for a 3.6 or larger displacement as the actual port sizes on the heads don't even match up. However, the aftermarket stuff for the 987 chassis works nicely and may provide a good place to start from. One caveat, the restriction of placing the cats in the headers makes the primaries too short and thus the 987 designs with the exception of the B&B setup and the custom setups put out by Farnbacher-Loles are not optimal either.

-Todd Holyoak

[edevlin]

Hey Jake, I have TTP german headers on my 2000 2.7L. I was very impressed by the fit and finish on their gear. I also have a stock muffler from my base boxster if you would like to try it.

Ed

[j.fro]

I'll throw a couple of suggestions out there:
GHL muffler - surprised no one mentioned this right off
Borla
I've seen a couple of custom setups that are similar to Borla/GHL that use a pair of straight-through mufflers coming into a pair of 90 degree bends for the tail pipes
Last, but not least, a few of us have modified the stock muffler by making internal cuts in the inlet tubes that allow gasses to bypass chambers inside the muffler and more directly exit the system.

By the way, sure would love to hear what you have to say about software/ECU updates for the M96 platform, and what you use on your updated motors.

Great work, and thank you for sharing your information. I look forward to all of your comments.