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The R44 ducktail design extends very far outwards
you will need the Genuine BMW M Performance rear wing fitting kit
Retains factory ECU control for smooth
Length: 600mm
Audi A3 S-Line 8V FL (2017-) only
Remus BMW M3/M4 Cat Back Exhaust System (F80/F82/F83) Select Tips:No Tips The R44 ducktail design extendsRemus BMW F80 M3 F82 M4 Cat Back Exhaust System improves the airflow of exhaust gases for greater performance and a less muffled exhaust note. The Remus Cat Back Exhaust System has a diameter of 70mm, 5mm larger than the OEM exhaust system. This increased diameter allows the exhaust gases to escape more quickly, reducing back pressure. This provides a slight power and torque increase, whilst unlocking far greater tuning potential. The Remus Cat Back
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