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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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08-03-2009, 01:51 PM	#11
jenster91 Registered User Join Date: May 2009 Location: Rhode Island Posts: 2	Crios Mod Fellow drillers....I have just completed this mod on my 99 no removable tip...Purchased long 1/2 bit from sears...drilled just left of straight Back....both sides...nice result I was hesitant...glad I went ahead...in my opinion: Below 3000 rpm is noticable...idle and just off when acellerating sounds best lower and somewhat louder no unwanted rasp or drone....above 3k rpm induction with de-snork is more prevelant and SWEET by the way!...overall would recommend. Tom D.

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