Dyno

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Love working on Corvettes, Camaros, Cadillacs, or other late model GM performance cars? JHR is seeking to hire another mechanic for immediate employment. We specialize in Late Model GM Performance. Prospective candidates should have experience from other performance shops, dealerships or other. Prospective candidates should also be able, to

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This 2013 ZL1 came in for a few simple stage 1 bolt ons. A METCO MOTORSPORTS 2.5 upper pulley, a set of Kooks Headers and Exhaust with off road connection, Roto-Fab, LLC cold air kit. A set of our JHR spark plug wires and heat sleeves.
We did a

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This awesome 2015 1LE got a set of Kooks Headers and Exhaust a JHR custom grind stage 3 COMP Cams and Trunnion upgrade, Rotofab Cai, and tuned with  HP Tuners.
The results are quite impressive from just our stage 3 camshaft.

 

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CTSV

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CTSV JHR performance stage 3 heads cam package

This CTSV Caddy has been to us a few times now. It first got our stage 2 package, Airad CAI Kooks Headers and Exhaust 2″ HF cats JHR wires, JHR HX ice tank, Weapon X heat exchanger, Lingenfelter Performance Engineering

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This beautiful 2015 ZO6 A7 car got a simple, and quite effective Haltech cai, & a custom JHR performance tune with HP Tuners.
This is a great example how restrictive these stock air intakes are on both the Stingrays & the ZO6’S.

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This shows just how well the new C7 Corvette Stingray reacts to just a cam install. With just headers, and a good cold air, and a tune the cars usually make in the 430/435. This car has headers, and a cold air also.

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Returning JHR customer all the way from Virginia, came back for a set of Advanced Induction – Cylinder Head Development CNC cylinder heads, a custom ground JHR performance camshaft. Toped of with a HP Tuners, JHR tune.
This car already had a set of Kooks Headers and Exhaust headers

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The guys from owner from Mac Brown Chevrolet in Boone Nc gave us the opportunity to work on their convertible 2013 ZL1. So we put him together just a simple stage 1 package that they could maybe offer to there customers at the dealership. The list of mods consisted

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C7 with the A&A V3 supercharger kit

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Look what’s back for our stage 3 upgrade!! Our first C7 with the A&A V3 supercharger kit. Thanks to kelly wolf for letting JHR use his car has a R&D piece. We’ll keep you updated with the results of this upgrade should be interesting. Car is going to get

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2015 ZO6 on Hennesseys dyno2015 ZO6 on Hennesseys dyno

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Ok… I’ve been hearing from quite a few people now that our Dyno reads high. Well, here is a 2015 ZO6 on Hennesseys dyno that made the exact power as our 2015 ZO6. So that should put a end to all those rumors. Please people get your facts straight

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