SLP's stainless steel catalyst back exhaust systems for 1998-2002 Camaro and Firebird can provide you with as much as 17 additional horsepower, depending on the application. This "cat back" system has just been updated with a new, more powerful sounding muffler! Not as aggressive as the "Loud Mouth" system, this revised exhaust offers a powerful, muscular sound without being "obnoxious". It is crafted entirely of stainless steel and is a direct bolt on replacement for the stock system. Included are SLPs famous "dual dual" tips with 2.5" outlets. You get all the necessary parts for easy bolt on installation and complete instructions.