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Even before FI !
My Whipple is setting in the garage while I buy/save for the supporting mods I'm wanting before install. About a month ago started noticing some power issues, and noises. I knew the cats were going bye bye as soon as the Whipple was on, but that was going to be awhile. I took the car into my muffler shop and had them check the cats. BOTH were trashed! My car is cammed, LT headers and a tune, around 460-470rwhp. IMO I'd clean the cats as soon as you go past just a CAI.
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SICC, Southern Illinois Camaro Club On Facebook
2011 SS/RS LS3/M6 convertible
Victory Red, Black top w/Nightshades 1LE graphics
Whipple 2.9L with 3.875" pulley
CBI ESAD cam with Tooley springs
ADM fuel with ID850 injectors DSX Tune
MGW shifter
20" TSW Nurbering 275/315 Nitto NT05
Carlyle Performance 15" kit with Pfadt solid subframe inserts
C.A.I. cold air intake
SLP LT headers, 3" exhaust, no cats, x-pipe
ZL1 dual mode mufflers
Lighting controlled by NightOwl
2010 SS/RS LS3 - SOLD-
#15,852 build date 06/05/2009
CGM w/flat black stripes
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