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It is worth a few 100 mile trip for an experienced reputable shop/tuner.
I would add to this list:
RPM in Wilmington DE
EFX in Lindenwald NJ
ECS in Cream Ridge NJ
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2017 1SS M6 Hyper Blue Metallic NPP, MMR 228 Z/28 replica wheels, Front: 20 x 9, Rear 20 x 11
Stock: 416hp/427tq, 12.21 @ 116.80
Modified 02/2019: Whipple SC w/ 3.500 pulley, LT4 fueling, NW 103 TB, Roto-Fab Big Gulp, Kooks 2" jet coated, full Borla ATAK exhaust, DSS axles, Gforce driveshaft.
Tuned by EFX Tuning 688hp/632tq
Best 1/4 to date: 10.705 @ 131.92
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