AFE: MACH Force-Xp 3" to 2-1/2" 304 Stainless Steel Axle-Back Exhaust System Audi A4 (B9) 17-19 L4-2.0L (t) 1.7l The simple sheetmetal design is

The simple sheetmetal design is lightweight and easy to install allowing you to move weight from the nose of the car to the rear of the car

The compact design provides additional header clearance over stock A-arms

The amount of force exerted on the sway bar end link is staggering—especially if you’ve upgraded to an aftermarket sway bar

100% hand TIG-welded for strength and durability

Horsepower  = +13

AFE: MACH Force-Xp 3" to 2-1/2" 304 Stainless Steel Axle-Back Exhaust System Audi A4 (B9) 17-19 L4-2.0L (t) 1.7l The simple sheetmetal design isPerformance Gains: This system produced gains of up to +8 HP and +15 lbs. x Ft. TQ., as measured on our in house dyno. 3" 2 1 2" 304 Stainless Steel Construction: This axle back exhaust system is constructed of 3" 2 1 2" mandrel bent 304 stainless steel tubing for maximum strength and durability. Resonator: This system features a 4" x 16" 304 stainless steel resonator, producing a mild sound. Dual 4" Diameter Black Exhaust Tips: Finishing off this