AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G80 M3 and G82 M4 SPECIAL-ORDER These shift knobs feature a

These shift knobs feature a 270g precision CNC machined brass core for added weight

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Zone Torsion Bar Keys

0 - 16-24 Titan XD 6'6" w/ Utili-Track System

AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G80 M3 and G82 M4 SPECIAL-ORDER These shift knobs feature aTechnical Data By replacing the restrictive secondary catalytic converters located in the mid pipe section directly after the downpipes, back pressure is reduced, which effectively improves the engines breathing by allowing it to expel gases more quickly. This in return means faster throttle response, increased power output and a more aggressive exhaust note. Measuring 3. 5 in diameter, this direct replacement mid pipe offers improved flow over