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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions
Raspy Exhaust (no cats), need advice

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05-04-2010, 12:26 PM	#5
Dragonwind Registered User Join Date: Jun 2007 Location: Colchester, CT Posts: 489	I'm going through the same thing with my 99. I put high flow cats on and it sounds exactly as you described till it gets to full temp, then it isn't as bad. I've pretty much determined that I need to go back to stock but I need a replacement OEM cat first as one had the o2 threads destroied. Chris __________________ 1999 986 2.5L, Stock Exhaust (S muffler), EVO Intake, 18" Stock rims (17" during winter), IMS Upgrade, 150k+ miles and counting! 87 944S brought back to life

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