The Full-Race 8th Generation Honda Civic Si Cat-Back V-Band Exhaust System is engineered to deliver the best sound and highest performance for K20 and K24 VTEC engines. Constructed from high-quality 3-inch T304 stainless steel and polished to a mirror finish, this exhaust system extracts maximum performance from all applications, including turbo, all-motor, and supercharged setups. Featuring a proven straight-through design with V-band flanges for easy installation, it is designed to increase overall power and decrease turbo spool time while offering excellent sound quality.

Features

• 3-inch T304 stainless steel construction.
  
• Polished to a mirror finish.
• Utilizes easy-to-install V-band flanges and clamps.
• Straight-through design for maximum performance and flow.
• Decreases turbo spool time and increases overall power on forced induction applications.
• Best fit and sound quality of any 3-inch exhaust on the market.

Notes

• The provided gasket is for use with an aftermarket downpipe; reuse the OEM crush gasket if connecting to the factory catalytic converter.
• All models may require slight bending or modification of the rear heat shielding during installation.
• During installation, ensure the adapter pipe is facing down to prevent interference with the underbody.
• OEM exhaust hangers can sag, allowing for unwanted exhaust movement; a Torque Solution Exhaust Mount Kit is a recommended replacement option.
• Lowered vehicles may experience contact between the rear spring and the exhaust; using an upgraded exhaust mount kit can help keep the exhaust in position.

Compatibility Notes

• Fits 2006-2011 4-door Sedan (FA5) Honda Civic Si models.
• Compatible with R18 Civic models when running a 3-inch turbo downpipe.
• Exhaust can bolt up to most aftermarket 3-inch headers/downpipes, or can be used in an OEM+ configuration with the optional Full-Race 2.5-inch to 3-inch adapter.
• When connecting to an aftermarket header, please verify the outlet flange size with the header manufacturer.

Specs

• Pipe Diameter: 3 inches
• Material: T304 stainless steel
• Flanges: V-band
• Applications: Turbo, All-Motor, and Supercharged setups