A rotating pick from our catalog โ real parts shipping today.
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Smith Day Performance Shop is a US-based online store built for muscle-car owners, weekend racers, and serious enthusiasts who want more power, sharper handling and better looks from their vehicles. We stock OEM-grade and aftermarket performance parts for the Chevrolet Camaro (SS, 1LE, ZL1), Ford Mustang (GT, Mach 1, Shelby GT500), Chevrolet Corvette (C7, C8, Z06, Grand Sport, ZR1), Cadillac CTS-V and CTS-V Blackwing, plus Dodge Challenger / Charger SRT, Hellcat and Scat Pack platforms.
From cold air intakes, long-tube headers and cat-back exhaust systems, to Brembo big-brake kits, drilled-and-slotted rotors, performance brake pads, coilovers, lowering springs, sway bars and control arms โ we carry the hard parts that unlock real gains on street or track. Need power? Browse our supercharger kits, turbo kits, ECU tuners, LT1 / LT4 / LS3 / LS7 / LSA engine upgrades, Coyote 5.0 bolt-ons and 6.2L / 6.4L Hemi performance components.
Finish the build with carbon-fiber hoods, spoilers, splitters, side skirts and full body kits; forged aftermarket wheels and performance tires; racing seats and harnesses; LED headlights, HID conversions, performance ignition, high-flow fuel pumps, injectors, intercoolers, radiators, catch cans and more.