Supersprint BMW E46 M3 Stainless Steel Downpipe Left with Metallic Catalytic Converter RS7 - C8 (2020+)(S) Their oversized 3/8" internal flow

Their oversized 3/8" internal flow path and smooth-radius bends ensure minimal fuel restriction

1 Series (E87)

Designed as direct OEM spring replacements

1/4” Deep sockets: 4

CORE CHARGE IS REFUNDED ON RECEIPT OF YOUR OLD ACTUATORS OR WE REQUIRE YOUR OLD ACTUATORS TO BE SENT IN ADVANCE TO US

Supersprint BMW E46 M3 Stainless Steel Downpipe Left with Metallic Catalytic Converter RS7 - C8 (2020+)(S) Their oversized 3/8" internal flowThe Supersprint Downpipe Left with Metallic Catalytic Converter is a precision, direct fit stainless steel upgrade engineered for the BMW E46 M3. It replaces the restrictive factory component to free up exhaust flow, sharpen throttle response and give your BMW a deeper, more purposeful note. Supersprint has been handcrafting performance exhausts in Mantova, Italy since 1955. Every system is designed and validated on the dyno not by assumption using