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Old 05-07-2018, 08:31 PM   #5
thstone
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,393
Search on "laguna exhaust", laguna seca exhaust, etc (which are all shorthand for the exhaust setups used at Laguna Seca Raceway where the sound is also limited) and you'll find a plethora of ideas...

Google image search=laguna+exhaust

Something like this can be quickly put together with materials from Home Depot.

Will it help enough to pass 96db? YMMV.

In my experience at Laguna Seca, you might have a chance at making 96db by focusing the sound to the drivers side (and maybe add a bolt on fart can silencer) but the only way to make 92db is to use a stock Boxster muffler.

__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor

Last edited by thstone; 05-07-2018 at 08:38 PM.
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