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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > DIY Project Guides
DIY Exhaust Mod – Gain of 10+ HP!!!

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05-27-2013, 08:25 PM	#10
germaneighter Registered User Join Date: Aug 2011 Location: Tulsa, OK Posts: 47	Did the crios muffler mod to my '02 2.7 today. I used a long 3/8" drill bit for initial hole and then used a carbide die grinder bit welded to an 8" piece of 1/4"dia bar stock that would fit my air die grinder. Made an oval about 1/2" X 3/4". I really like the mild sound difference plus I do think it added just a touch to the bottom end to mid range. thanks crios....

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