Cobra Sport Valved Primary Cat Back Exhaust (Secondary De-Cat) - BMW F80 M3 | F82 M4

This valved Cobra Sport exhaust fits from the primary catalyst backwards on the F80 M3 and F82 M4, replacing the secondary catalysts, centre section and rear section. Built in 3" (76.2mm) T304 stainless steel with a centre H-pipe, it gives a deeper, more aggressive sound under load.

The factory valve motors are retained, so the drive modes still switch between a quieter tone in Comfort and the full sound through all four tips in Sport and Sport+.

Please note: This system removes the secondary catalysts and is sold for motorsport / off-road use only - it will not pass a UK MOT emissions test. An EML light may appear once the secondary catalysts are removed, so an ECU remap is recommended. Fits pre-GPF (pre-PPF) cars only. Requires 2 x BMW gaskets (BMW part number 18307851168), which are not included; all other fittings and gaskets are supplied.

Features

• 3" (76.2mm) T304 stainless steel pipework
• Fits from the primary catalyst backwards, including secondary de-cat
• Centre H-pipe to balance gas flow from both banks
• Retains the factory exhaust valves and drive modes
• Tested at +21.25bhp and +9.2lb-ft with the secondary de-cat and cat back system
• Developed to avoid cabin drone throughout the rev range
• Choice of tailpipe finishes, including carbon fibre

Fitment

• BMW F80 M3 (2014-2018, pre-GPF)
• BMW F82 M4 Coupe (pre-GPF)