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I had solo cats on my ls3, paired with the MBRP cat back and now I have American racing headers with cats and to be honest the solo sound just as good with the stock exaust manifolds. A little less roar at Wot but not that much difference. If you are thinking about these cats just do it they are awesome.
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ATI Super Damper, Katech C5R Chain, Jannetty 470 Comp Cam, Comp Valve Springs, Mellings Oil Pump, Manley Push Rods, Comp Tringion Upgrade, Cold Air Inductions Intake, 1-7/8 American Racing Headers w Cats, MBRP 3 Inch Exhaust, RX Catch Can, Eaton Tru Trac, 3.91 OEM, DSS Drive And Half Shafts, LPW Diff Cover,3 Inch Noweeds, Amsoil Z-Rod, Tuned by Jannetty Racing
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