Active Autowerke Catted Downpipes (GESI G - Sport Cats) - BMW / F8X / S55 / M3 / M4 / M2 Competition (11-080) 17195 They are a great compliment

They are a great compliment to our D2 or TruHart Lowering Springs

From the masters of S4 performance

Durable TIG welded 304 stainless steel construction with industry standard rust warranty

(1) fitting kit (Part Number P-HF687)

Active Autowerke Catted Downpipes (GESI G - Sport Cats) - BMW / F8X / S55 / M3 / M4 / M2 Competition (11-080) 17195 They are a great complimentActive Autowerke's catted downpipes (GESI G Sport Cats) offer precise fitment for BMW F8X S55 models including F87 M2 Competition, F80 M3, and F82 M4, engineered to enhance exhaust flow and performance. Includes a pair of 4" ultra high flow GESI catalytic converters (Gen 2 Advanced) that will not trigger a Check Engine Light (CEL) Constructed from full 304 stainless steel, including furnace brazed substrate for durability EPA registered and compliant