Overkill Superchargers For GM LLT, LFX & LGX V6 Engines

Overkill superchargers for the GM 3.6 V6

Overkill is a bolt-on, Procharger-based supercharger system for the GM 3.6 V6 in the Chevrolet Camaro and the Cadillac ATS and CTS. Kits are built for the engine, not the model, so start from what is under the hood. The 2010-11 Camaro has the LLT, the 2012-15 Camaro and 2013-15 ATS have the LFX, and the 2016-24 Camaro and 2016-19 ATS have the LGX. If you are not sure which you have, read LLT, LFX or LGX: which kit fits your car, or call (941) 981-3930 with your year and model.

Find your kit

Prices are for the kit alone. Each product page lets you add the HP Tuners interface and the credits your car needs. Stage 1 and Stage 2 use the Procharger P1SC head unit; Stage 3, with the larger D1SC and full fuel system upgrades, is built to order by phone.

What every kit includes

• Procharger centrifugal supercharger with a self-contained oiling system, so no oil lines connect to the engine
• Overkill 8-rib pulley system with a dedicated belt that leaves the factory accessory belt alone
• Air-to-air intercooler, Precision blow-off valve, machined MAF housing and silicone and aluminum tubing with T-bolt clamps
• Custom tuning through HP Tuners, for you or the shop installing the kit
• Tracy Lewis catch can system, set up to keep oil out of the supercharger and intercooler under boost
• Full intake with K&N filter, AC Delco spark plugs for boost, and the brackets and hardware the install needs

What to expect

Overkill rates Stage 1 at roughly 100-125 hp over stock on the Camaro kits. On the ATS, customers' Stage 1 cars have typically gone from a factory 260 wheel horsepower to 350-370 wheel horsepower on a chassis dyno, and Stage 3 cars have dynoed around 450 wheel horsepower as delivered. Your result depends on fuel, tune and the condition of the car. Boost comes in progressively, so the car stays easy to drive at part throttle. For how the cost adds up, including the tuning credits people forget to budget, read how much it costs to supercharge a V6.

Bolt-on and reversible

Every kit installs with hand tools in a weekend, needs no prior modifications and no cutting, and comes off again if you ever want the car back to stock. That is the main reason we build superchargers rather than turbo kits for these engines; the comparison is in supercharger or turbo for a 3.6 V6. New to forced induction? Start with can you supercharge a V6?, then the installation instructions.