1998-2002 LS1 F-Body Performance Packages

Royal Purple® Motor Oil is a tough, long life, high performance oil that delivers superior protection and enhanced performance to gasoline and diesel engines. It gains its performance advantages from a blend of synthetic oils plus Royal Purple's proprietary, synthetic Synerlec® additive technology. This technology is the force behind Royal Purple motorsports' exceptional performance. All Royal Purple products have super-tough film strength, outstanding viscosity stability, a very low coefficient of friction and tenacious adherence to metal surfaces. This enable engines to produce more horsepower and torque with less wear over much greater periods of time. Royal Purple lubricants have the ability to reduce heat from friction as a result of incredible film strength, thereby increasing part life. Royal Purple's motor oils are API certified and will not void new car warranties. Plus they are compatible with other mineral and synthetic motor oils.

When you want more power for your LS1 without letting everyone else know about it, Thunder Racing's CheaTR package is the only choice!  Utilizing specially prepared AFR cylinder heads and a custom Thunder Racing "CheaTR" camshaft, your engine will retain stock appearance and stock idle while still enjoying tire-boiling horsepower and torque.  This package is designed to give you real world horsepower gains, but retain your factory exhaust system, catalytic converters, and exhaust manifolds.  Best of all, the driveability remains virtually unchanged and your vehicle will even be emissions friendly!  You'll keep the competition guessing as your "stock" LS1 beats them race after race!

As seen on this dyno sheet, a gain of nearly sixty rear wheel horsepower was seen with the addition of the Thunder Racing CheaTR package.  Previous mods included a high flow lid, ported throttle body, under drive pulley, and LS6 intake manifold.  After the installation of the CheaTR package, the Trans Am dynoed 394.29 rear wheel horsepower.  Remember, this was achieved using factory manifolds, catalytic converters, and exhaust system.