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Thread: Should I put a cat back exhuast in before I get a custom tune?

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07-16-2008, 08:02 PM	#21
beatle78 Registered User Status: Offline Join Date: Apr 2006 Member ID: 45320 Pics: My Gallery Location: Rhode Island Posts: 147	Re: Should I put a cat back exhuast in before I get a custom tune? Bought it here! http://www.dotcomparts.com/Items/mag...SYSTEM%2015778 Should be here Friday! 2003 Silverado Z-71 ecsb, 5.3L, 3.73, 265/75/16 Bridgestone Dueler 693(oem); Magnaflow 3" SI/SO Cat Back(p/n15778) and now waiting for Justin's tune! For Sale: $1500 '89 K1500 eclb w/ 7.5' Fisher electric hydraulic reconditioned plow. 33" BFG AT's HD leafs in the rear.