Gibson 04-08 Ford F-150 FX4 5.4L 3in Cat-Back Single Exhaust - Aluminized

Gibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepower at low-end (1800 to 3000 RPM). Horsepower gains average 10-15 and 15-20lb-ft of increase torque. Hassle free, bolt-on installation with professional looking results. No welding required. Backed by a Lifetime Limited Warranty.Installation InstructionsCertificate of OriginWarrantyThis Part Fits: Year Make Model Submodel 2007-2008 Ford F-150 FX2 2004-2008 Ford F-150 FX4 2006-2008 Ford F-150 Harley-Davidson Edition 2005-2008 Ford F-150 King Ranch 2004-2008 Ford F-150 Lariat 2008 Ford F-150 Limited 2004-2008 Ford F-150 STX 2008 Ford F-150 THE 60TH ANNIVERSARY EDITION 2004-2008 Ford F-150 XL 2004-2008 Ford F-150 XLT 2006-2008 Lincoln Mark LT Base