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JantzenOKC · 08-27-2015, 05:00 PM

I finally got around to putting this LS3 stock catback on. Good news is it's pretty quiet inside and practically no drone. The bad news is it sounds like a Honda lol. It's raspy but I kinda figured it would be going back to an h-pipe. It sounds really good at idle. I might replace the h-pipe with another magnaflow x-pipe and see how that sounds. At least now I'm 2.5" all the way back so might make a little more power. Sure looks funny though with the NPP diffuser. I need to find someone to trade with.

08-27-2015, 05:00 PM	#373
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	I finally got around to putting this LS3 stock catback on. Good news is it's pretty quiet inside and practically no drone. The bad news is it sounds like a Honda lol. It's raspy but I kinda figured it would be going back to an h-pipe. It sounds really good at idle. I might replace the h-pipe with another magnaflow x-pipe and see how that sounds. At least now I'm 2.5" all the way back so might make a little more power. Sure looks funny though with the NPP diffuser. I need to find someone to trade with. Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph Last edited by JantzenOKC; 08-27-2015 at 06:06 PM.