The compact oval "straight-through" Flow FX performance muffler attaches behind the catalytic converter and delivers a moderate deep powerful sound while the mandrel-bent stainless tailpipe tucks up high in the undercarriage protecting it from being crushed when traversing rocky terrain
Includes Racer Safety Blow-Off Adapter
P/N 558-307 to complete the installation
Brand Interchange Part Number Audi 4D0 131 090 RX Audi 4D0 254 350 BX Audi 4D0 254 550 AX Audi 4D0131090RX Audi 4D0254350BX Audi 4D0254550AX Audi 4D0 131 090 RX Audi 4D0 254 350 BX Audi 4D0 254 550 AX Audi 4D0131090RX Audi 4D0254350BX Audi 4D0254550AX
SS4 Brake System Rear 4262241S air-cleaners-and-hardware The compact oval "straight-through" FlowFits Ford 8. 8" C Clip Rear Ends w 2. 5" Axle Standoff, 5 Lug Features: 2 Piece, 4 Piston, S4 Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced Forged or Billet Aluminum Powder Coated Finish Hard Anodized Aluminum Pistons, Stainless Steel Abutments and Noise Suppression Clips Dual Seals, Dust Weather & Pressure 1 Piece Slot, Drilled, Zinc Plate Rotor Specs: Axle Rear Axle Flange Ford 8. 8" Brand Baer Brakes Caliper S4 Caliper Color