AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G87 M2 fiesta mk7 Progressive spring design

Progressive spring design

Beautifully Compliments the Engine Bay

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0 Cupra 2015 Seat Leon ST (mk3) 2

AIRTEC Motorsport 3.5” Secondary Cat Bypass for BMW G87 M2 fiesta mk7 Progressive spring designBy 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