It seems like every Mopar maniac wants a new Challenger, and even Brand-X guys appreciate the styling. In fact, we've spoken to regular (any brand) folks who mentioned they like the Challenger's ...

SLP’s Loud Mouth lineup of exhaust components is very popular in the after market realm, it’s actually one of the most popular systems for the fourth-generation Camaro and Firebird. What’s interesting ...

As some of you may be able to recall, we dipped into the low 12s with our Project LS1 Trans Am using SLP Performance Parts' Tuned Length Headers, Y-pipe and Loud Mouth II exhaust, and little more than ...

Thirty years ago, horsepower was the last thing motorheads worried about. When the Camaro and Firebird appeared on the scene, dealerships such as Nickey and Yenko sold versions of these cars equipped ...

SLP Engineering slid off our radar screen about four years ago when the General lowered the boom on the Camaro and Firebird. Now SLP is back with a pair of new performance packages for GM's 400-hp, ...

Back in September of 2008, SLP Performance quietly handed out a few brochures for a new Firehawk, this time based on the Pontiac G8, what with the Firebird being dead and all. Some drooled, some fumed ...

In 1987, former super stock drag racer and performance parts entrepreneur Ed Hamburger formed Street Legal Performance (SLP). Hamburger wanted to apply his wealth of hot-rodding expertise to ...