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LSX Magazine: Granatelli Motor Sports Adds 52 Rear-Wheel HP to a C6 Z06 With Bolt-Ons
LSX Magazine covered a Granatelli Motor Sports dyno test on a 2012 C6 Z06: an intake, Pro Series coil packs and 0-Ohm plug wires took the car from 443 to 496 rear-wheel horsepower.
LSX Magazine covered a Granatelli Motor Sports dyno test in which three bolt-on parts added 52.6 rear-wheel horsepower to a C6 Corvette Z06. The car was a black 2012 Centennial Edition Z06, tested before and after on the dyno.
The story, "Video: Granatelli Adds 52 RWHP to a Z06 Without Breaking a Sweat," was written by Clifton Klaverweiden and published on July 13, 2012.
The Numbers LSX Magazine Reported
| Rear-wheel horsepower | Rear-wheel torque | |
|---|---|---|
| Stock | 443.2 hp | 417.5 lb-ft |
| With Granatelli parts | 495.8 hp | 464.4 lb-ft |
| Gain | +52.6 hp | +46.9 lb-ft |
What Went on the Car
- A high-flow intake
- Granatelli Pro Series coil packs
- Granatelli 0-Ohm spark plug wires
According to the article, the work took only a few hours. The piece presents it as an easy gain on an engine, the 7.0L LS7, that responds well to more airflow and a stronger spark.
Why Intake and Ignition Work Together
An intake lets the engine move more air. Coils and wires do not add airflow; they help the engine burn the air and fuel it already has by delivering a stronger, more consistent spark. Put together, the engine breathes better and lights the mixture more reliably, which is where a result like this comes from.
These numbers came from one car on one dyno. Results on your car will depend on its condition, the parts it already has and the tune.
Watch and Read the Original Coverage
Read the story at LSX Magazine
Watch the dyno video on YouTube
Shop Granatelli Corvette and LS Ignition Parts
- Granatelli 85K Malevolent Coil Packs for LS2, LS3, LS7, LS9 and LSA
- All Granatelli Performance Ignition Coils
- Granatelli 0-Ohm Spark Plug Wires with ceramic and Kevlar boot options
- Granatelli GM Mass Airflow Sensors
- Granatelli GM LS Throttle Bodies
- All Granatelli Corvette Parts
Not sure which coil series fits your engine? See Which Granatelli Coil Pack Do I Need? and the Ignition and Spark Plug Wire FAQ.
Related reading: 0-Ohm vs. Conventional Spark Plug Wires: What Does Resistance Really Change?
About Granatelli Motor Sports
Granatelli Motor Sports, based in Oxnard, California, has built performance parts for street, street/strip and race vehicles since 1989, including ignition coils, spark plug wires, throttle bodies, turbo components and electronic exhaust cutouts.

