BMW M3 G80 / M4 G82 G83 / M2 G87 Alpha Competition Decat Downpipes

This kit of two 3.5" / 90mm diameter Alpha Competition stainless steel downpipes with decat, fits without modifications between the turbos and the front pipes of the BMW M3 G80 / M4 G8x and M2 G87. These downpipes clearly have the best price / quality ratio on the market with a full flow design, high quality T304 stainless steel, handmade TIG welding and optional anti-thermal stainless steel heat shields designed to limit the spread of heat in the engine bay.

Direct mounting

100% T304 stainless steel

3.5"/ 90mm tubes

Measured gain on OEM : 52hp

Handmade TIG welds

Assembly kit included

heat shield coating

Lifetime warranty