SLP Performance
SLP Performance Products and Accessories
Established in 1987, SLP has stood for quality performance enhancements for late-model American Muscle cars from the beginning, and it continues this commitment today. SLP's initial claim to fame says it all: It was the first company in the performance aftermarket to develop and manufacture a 50-state emission-legal performance package -- specifically for V8 Camaros and Firebirds. True to its name ("Street Legal Performance"), the vision of SLP's part program is to not just provide performance, but to do so with the best engineering practices and quality possible, far exceeding the industry standards.
SLP offers a wide range of performance enhancements to the American muscle car. SLP also provides best-in-class performance upgrades in the following product categories:
- Blackwing Cold Air Intakes
- Loudmouth Exhausts
- Accessories
- Interior
- Suspension
- Body kits
The range of Car, Truck and SUV applications covered by SLP includes Camaro, Corvette, Firebird, GTO, G8, Mustang, Challenger, Charger, Magnum, 300C, Silverado, Sierra, Tahoe, Escalade, Yukon, Suburban, Avalanche and More. Accesspeed is proud to offer SLP products to our customers. With our lowest price match guarantee, you will always find the best combination of price and selection at Accesspeed.
Engine » Valve Covers and Plenum Covers
Valve Covers and Plenum Covers
Are all valve covers the same?
Yes and no. Yes, they all perform the basic function of keeping oil and air sealed inside, and keeping dirt and other elements outside. However, Accesspeed has found that the difference really comes down to whether you need a taller cover, and the material used. Steel stamped valve covers are often the least expensive, but the flanges are often distorted due to people over-tightening the fasteners, which can cause a leak. Aluminum valve covers are better simply because they have thicker flanges that will not distort under the same level of overtightening. Additionally, aluminum will dissipate heat quicker than steel. For the ultimate in valve covers, carbon fiber is the ticket. The weight savings alone is significant, especially if you need taller valve covers with baffles.
What is a plenum cover?
Plenum covers are engine cover pieces that cover the intake plenum on the top of your engine. Accesspeed offers a variety of metal and composite plenum covers, as well as complete engine cover kits, in carbon fiber, aluminum, and high-temp ABS.