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.
Exhaust, Mufflers, Headers and Tips » Short-Tube and Shorty Headers
Short-Tube Headers, Shorty Headers, CARB-Legal Headers, Street Legal Headers, California Legal Headers
Do short tube headers increase horsepower?
Yes, shorty headers increase horsepower. If your state requires EO certified headers to be “in compliance” with emissions laws, short tube headers are a great investment in reliable, smog-legal performance.
Do shorty headers improve gas mileage?
Yes, in most cases, fuel mileage will increase when you add short tube headers. The problem that Accesspeed customers have is keeping their foot out of the throttle because shorty headers add horsepower and acceleration.
Are short tube headers legal in my state?
If your state allows you to replace the exhaust manifold without touching the OEM catalytic converter, shorty headers should be legal in your state. If you purchase 50-state EO compliant headers, you are legal.