Cat-Back Exhaust System2.500 in. Aluminized Tubing1994-1996 Chevy Impala SS, Caprice, Buick RoadmasterFor 5.7L Engines JEGS 555-30410 Cat-Back Exhaust System Includes: (6) Pipes (2) Mufflers (2) SS Turn Down Tips (2) Flanges (7) Clamps (4) Hangers FAQHow much HP will a cat-back exhaust add? JEGS 555-30410 cat-back exhaust system enhances horsepower, though specific gains vary. Expect improved performance, throttle response, and a more aggressive exhaust note for your Chevy Impala, Caprice, or Buick Roadmaster.What is the difference between catback and turbo back exhaust? Cat-back exhaust replaces components from the catalytic converter back, while turbo-back includes modifications up to the turbo. JEGS 555-30410 is a cat-back system, providing enhanced performance without modifying the turbo section.Is the cat-back performance exhaust system worth it? Absolutely. JEGS 555-30410 cat-back exhaust offers improved horsepower, torque, and a distinctive sound. It's a worthwhile upgrade for enthusiasts seeking enhanced performance and a more aggressive exhaust tone.Can having a cat-back exhaust be bad for the engine? No, JEGS 555-30410 cat-back exhaust is designed for performance without adverse effects on the engine. It improves exhaust flow, enhancing efficiency and sound without causing harm to the engine when properly installed.