AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G80 M3 and G82 M4 SPECIAL-ORDER When you just want a

When you just want a little boost to clear those new tires

Standard Intercooler                              AIRTEC Motorsport Intercooler

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

TRANS SIERRA/SILVERADO

AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G80 M3 and G82 M4 SPECIAL-ORDER When you just want 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