AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G87 M2 TW2-274A Kit Includes:

Kit Includes:

Audi RS3 8V

6 fine tuning mappings Up to +20% MPG 1-year engine warranty

Intake Manifold Spacer

Fitting Manuals

AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G87 M2 TW2-274A Kit Includes: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 standard and comes