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Old 03-20-2020, 03:40 PM   #9
Drives: 2012 ZL1 M6
Join Date: Feb 2019
Location: Conroe, Tx
Posts: 63
Agree with others on factory NPP exhaust. Sounds mean as hell with headers. I'm not changing it and spending money.
604 RWHP / 604 RWTQ @ 15 PSI
Speed Engineering 1 7/8 Headers no cats, LPE 2.38 upper pulley kit, Roto-Fab CAI, FIC 1000 injectors, MSD plug wires w/Kevlar heat sleeves, Brick Mod, 160 degree thermostat, Custom Tune by Mike Gforce Motorsports, Phastek Blue map LED and LED footwell lighting, VLEDS DRLs and FOGs.
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