aFe Silver Bullet Throttle Body Spacers TBS BMW 325i (E46) 01-06 L6-2.5L 1977-audi-fox-base-esi7204031 BORLA® Cat-Back™ & Axle-Back systems

BORLA® Cat-Back™ & Axle-Back systems feature patented straight-through and multi-core technology to unleash hidden horsepower

Replace the Polyphonic Harmonizer behind the muffler in this ATAK(r) system with muffler 60679 to attain the S-Type sound level (quieter than ATAK(r))

Lightweight And Portable

The recessed winch mount is equipped for heavy duty use

This filter features 5-layers of progressively Finer Oiled Cotton Gauze and 2-layers of Finer Porosity Synthetic non-woven media for highest filtration efficiency for extreme dust environments

aFe Silver Bullet Throttle Body Spacers TBS BMW 325i (E46) 01-06 L6-2.5L 1977-audi-fox-base-esi7204031 BORLA® Cat-Back™ & Axle-Back systemsSilver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T 6061 billet aluminum and using a unique serrated helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.