Borla S-Type Axle-Back Exhaust Dual 4" Tips For 15-23 Ford Mustang EcoBoost 2.3L 2015-2023 Ford F-150 Raptor The boost relief valve is

The boost relief valve is installed in the line to the map sensor

With the included 22 channels

Includes 4 FOX 2

Equipped with a high-quality dry filter for efficient filtration

Non EBV Exhaust Housing

Borla S-Type Axle-Back Exhaust Dual 4" Tips For 15-23 Ford Mustang EcoBoost 2.3L 2015-2023 Ford F-150 Raptor The boost relief valve isThis 2. 25" Cat Back system features the classic S Type sound with no drone inside the vehicle, and 4" bright chrome on T 304 stainless steel tips. BORLA Cat Back and Axle Back exhaust systems feature patented straight through and multi core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere.