Corvette Supercharger Kits: Edelbrock C6 vs C7 (2008-19)

A Corvette supercharger kit is the single fastest way to turn a factory C6 or C7 into a 600-plus horsepower street car, and the Edelbrock E-Force system is the most complete bolt-on blower NLP Performance stocks for both generations. The Stage 1 Street kit for the 2014–2019 C7 Stingray takes the naturally aspirated 6.2L LT1 from a factory rating near 460 hp to 624 horsepower and 600 lb-ft of torque at the flywheel — a gain of roughly 165 hp — while remaining 50-state emissions legal. The 2008–2013 C6 LS3 version does the same job on the previous generation, and a Stage 2 street/strip option adds headroom for the drag strip. This comparison breaks down every Edelbrock Corvette supercharger kit in stock, the real power numbers, and how to pick the right one for your car.

Why Supercharge a C6 or C7 Corvette?

A supercharger is the highest power-per-dollar upgrade you can bolt to a small-block Corvette. The factory C7 Stingray LT1 makes about 455–460 hp, and the C6 LS3 makes 430–436 hp depending on exhaust; both engines have stout forged-or-cast rotating assemblies and excellent cylinder heads that respond immediately to boost. Rather than chasing 15–25 hp with a cam or headers, an Edelbrock E-Force kit adds roughly 160–170 horsepower in a single afternoon of installation, and it does it low in the rev range where a street car actually lives.

Positive-displacement (roots-style) superchargers like the E-Force are prized for exactly that trait: instant, linear boost from just off idle. Unlike a turbo, there is no spool-up lag and no need to re-engineer the exhaust. For a Corvette that still needs to idle in traffic, pass emissions, and tow a trailer to the track, that drivability is the whole point. In our Tampa, FL shop, forced induction is the most-requested "big" upgrade for Corvette owners precisely because it transforms the car without turning it into a project.

How the Edelbrock E-Force Supercharger Works

Every Edelbrock Corvette kit is built around the same core: the Eaton Gen VI 2300 TVS rotating assembly. TVS stands for Twin Vortices Series, and the 2300 designation means 2,300 cc of displacement per revolution. The four-lobe rotors carry 160 degrees of twist, a geometry Eaton designed for maximum airflow, minimum charge-temperature rise, and quiet operation. That last point matters on a Corvette — the E-Force whines far less than older roots blowers, so the car keeps its LT1 or LS3 exhaust note instead of sounding like a supercharged pickup.

Three engineering details separate the E-Force from a generic blower. First, an integrated bypass valve disengages boost under light throttle to eliminate parasitic loss and preserve fuel economy when you are cruising. Second, Edelbrock's inlet routes air through a shorter, less-restrictive path with no jack-shaft, which improves airflow into the rotors. Third, and most important for making power in Florida heat, a high-capacity air-to-water intercooler with a low-temp heat exchanger keeps intake charge temperatures down so the tune can hold timing lap after lap. Each Stage 1 kit ships with a supplied tune and is 50-state emissions legal, meaning it carries a CARB Executive Order and is street-legal in all fifty states.

Edelbrock Corvette Supercharger Kits Compared

The table below lists every Edelbrock E-Force Corvette kit we stock. Note the power basis: Stage 1 Street figures are quoted at the flywheel (crank), while the Stage 2 Street/Strip kit is measured at the rear wheels — 537 wheel horsepower works out to roughly 625–640 crank hp, so Stage 2 is the higher-output, more track-focused system despite the smaller headline number.

C7 Corvette Supercharger Kits (2014–2019 LT1)

The C7 kits are the volume sellers. All three use the same TVS-2300 blower and air-to-water intercooler; the difference is the tune stage and whether your car is a base, Z51, or wet-sump application.

The #1571 Stage 1 Street kit is our top pick for a reason: it fits the mainstream base C7 Stingray, hits 624 hp and 600 lb-ft at the flywheel, and keeps its CARB emissions certification so the car passes inspection anywhere. At around $11,000 with the supplied tune, it is the most complete plug-and-boost package on this list.

If your C7 left the factory with the Z51 Performance Package, the #1570 kit is the correct part number. It makes identical power to the base kit — 624 hp and 600 lb-ft — but its provisions match the Z51's cooling and oiling layout, and it typically lands a little under the base kit in price.

The #15711 Stage 2 street/strip system is the choice for drag and track use. Its 537 rear-wheel horsepower rating equates to roughly 625–640 crank hp, and the kit is built with the fueling and boost provisions to support that duty cycle repeatedly. It remains 50-state legal, so you are not trading street manners for strip numbers.

C6 Corvette Supercharger Kits (2008–2013 LS3)

C6 owners are not left out. The same Eaton TVS-2300 E-Force blower bolts to the 6.2L LS3, lifting a stock 430–436 hp coupe to roughly 599 hp and 547 lb-ft. Pick the kit that matches your oiling system: base and Grand Sport coupes use a wet sump, while dry-sump Grand Sport and Z06-derived cars need the dry-sump-specific part.

The #1575 kit is engineered specifically for the 2010–2013 Grand Sport with the factory dry-sump oiling system, so its plumbing and provisions differ from the standard #1591 wet-sump kit even though both make the same 599 hp. Choosing the right sump variant is the most common fitment question we field on C6 blower kits — check your car before ordering, and our Tampa team can confirm it by VIN.

Edelbrock E-Force Pros and Cons

Stage 1 vs Stage 2: Which Should You Choose?

For 90 percent of Corvette owners, Stage 1 Street is the right answer. It delivers 624 crank hp on the C7 and 599 on the C6, keeps full drivability and emissions compliance, and runs on premium pump gas with the included tune. It is the kit you want if the car sees canyon roads, car shows, and the occasional track day.

Stage 2 Street/Strip makes sense when the car is a dedicated drag or track build. The 537 wheel-horsepower rating reflects a system set up for repeated wide-open-throttle pulls and higher boost with the correct supporting fuel system. If you are running slicks and chasing 10-second timeslips, Stage 2 is the platform to grow into; if you just want a fast, well-mannered street Corvette, Stage 1 saves money and complexity. Either way, budget for supporting maintenance — fresh plugs, quality fuel, and periodic intercooler coolant service keep a blown LT1 or LS3 happy.

Installation, Tuning and What to Expect

The E-Force is a true bolt-on: it mounts to the factory intake location, reuses the OEM fuel system on Stage 1, and ships with the supplied calibration so there is no dyno tuning required for the base kit. A competent shop typically completes the install in a single day. Because the supercharger is 50-state legal, the tune is designed to preserve closed-loop fueling and OBD-II readiness so the car still passes inspection. We recommend fresh, correct-heat-range spark plugs at install and 91-plus octane fuel for every kit on this list.

Planning to build further? A blown Corvette responds well to a free-flowing exhaust and a set of long-tube headers, and the aftermarket for LT1 and LS3 cooling and fueling is deep. Browse the full catalog of forced-induction and engine hardware in our engine upgrades collection, or start with the Edelbrock #1571 kit that anchors this guide. Our Tampa, FL team can confirm the exact part number for your VIN before you order.