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Agency Power BMW F80 M3 & F82 F83 M4 Cat-Back Exhaust

Agency Power

  • £3,300.00
    exc. VAT £2,750.00

Compatibility Check - Enter your full VIN. We will double check compatibility for you before dispatching!


A catback exhaust system for the BMW M3/M4 F80/F82 vehicle is a great way to improve performance and sound. What makes a great exhaust system for the BMW M car is its flow characteristics and OEM like functionality. Agency Power has tested several different exhaust designs and has finally come up with the best system available for the M3 M4. This new full stainless steel exhaust features dual 63.5mm diameter piping that incorporates an X design right after the downpipes. Removing the restrictions that are found on the stock exhaust gives the twin turbocharged I6 engine grips of power as you go through the revs. The noise unleashed with the valves open, dramatically changes the driving experience for the better. With the factory valves functioning like stock, you can cruise mildly in ECO mode to get the best of both worlds. Finishing off the exhaust is a set of quad 89mm exhaust tips. These more aggressive tips are designed to work with the stock bumper outlet or an aftermarket diffuser.


  • T304 Stainless Steel Construction
  • Media blasted for a satin finish
  • Integrated exhaust valves that work with drive modes
  • Includes X Pipe Design
  • Bolts to stock or aftermarket downpipes
  • 63.5mm tubing
  • 4x 89mm quad exhaust tips
  • Does not require tuning
  • Includes matte black coated exhaust tips

Agency Power Exhaust System for M3 & M4

Revs up!

Compatibility Check

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.


BMW M3 F80 2014 (Compatible with M3 CS models)

BMW M4 F82/F83 2014+ (Compatible with M4 CS models)

Not compatible with the newer M3 or M4 with the OPF fitted


Agency Power Lifetime Warranty

Manufactured by

Agency Power

Part Number

AP-F80M-170B (Black)

AP-F80M-170G (Gold)

AP-F80M-170T (Titanium)

Next Day UK Delivery

Get FREE Guaranteed next day UK delivery for orders over £99 (exc. VAT) on all in stock items. Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!

Worldwide Shipping

We ship worldwide via DHL International, simply enter your full address at checkout to see the shipping option(s) and quote(s). Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!