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post #4 of (permalink) Old 03-26-2019
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Originally Posted by Iceman44 View Post
Catback dual will be next, then PCM upgrade. I cannot stand the tranny dropping into overdrive at 45-50mph in drive.


Sure thing!
I agree about the OD. 55 at the lowest for me when I get a tune. Fortunately I can drive to ZZP and have them dyno it and all that fun stuff.


04 Impala LS

Engine: ZZP PCM, ZZP Downpipe, Xcelerator Resonator, Dual Xcelerator Mufflers, 4" Stainless tips, 180 t-stat, Shorter Dogbones, Mount Spacers, Optima Red Top Battery
Trans/Drivetrain: TransGo shift kit + preloaded accumulator
Suspension: BC Racing coilovers, Police LCAs, Police Rotors and Pads, Boxed trailing arms, Dorman front solid sway bar
Exterior: LED Headlights, Red LED license plate lights and side markers
Blue LED cluster+HVAC+door switches, LED interior
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