SLP PerformancePac, 2001-02 F-Car "Loud Mouth" Exhaust w/3.5" SlashTips 375HP Get 375 horsepower…with bolt-on parts! Take the guesswork out of upgrading your LS1 F-Body, with the PerformancePac™ from SLP Performance Parts. Each 375 HP package comprises a group of jointly engineered induction and exhaust components, all of which work together to significantly improve performance without adversely affecting drivability. Best of all, you’ll save $75 over the cost of purchasing the parts individually! This Stage 2 PerformancePac™ contains the following items: High-Flow Air-Box Lid (21045) Cold-Air Induction Package (21033) High-Flow K&N Air Filter (25012B) F-Body Smooth Bellows (23065) Modular Loud Mouth™ Exhaust System w/3.5" Slash Tips (31042A) 85mm High-Flow MAF Sensor (23062) DiabloSport II Programmer with SLP Custom Tuning (27007T) 1.85-Ratio Rocker Arms (50185) 375 HP Fender Badges (pair) NOTE: Contents may vary slightly from photograph.