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Justin87 · 04-07-2013, 09:42 AM

I'm running Magnaflow on my 00" Sierra with 5.3 and sounds great. Also using a Diablo Predator programmer makes a lot of difference.

04-07-2013, 09:42 AM	#4
Justin87 Registered User Join Date: Jun 2009 Location: Lawson Mo Posts: 147	Re: Getting a new truck! yeah buddy!!! I'm running Magnaflow on my 00" Sierra with 5.3 and sounds great. Also using a Diablo Predator programmer makes a lot of difference. __________________ 2006 Silverado 2500 HD