Akrapovic M-BM/T/8H BMW M3 M4 F80 F82 Slip-On Ti
Akrapovic M-BM/T/8H BMW M3 M4 F80 F82 Slip-On Ti
Akrapovic M-BM/T/8H BMW M3 M4 F80 F82 Slip-On Ti
Akrapovic M-BM/T/8H BMW M3 M4 F80 F82 Slip-On Ti
Akrapovic M-BM/T/8H BMW M3 M4 F80 F82 Slip-On Ti
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Akrapovic 14-17 BMW M3/M4 (F80/F82) Slip-On Line (Titanium) (Req. Tips)

Akrapovic
AKRM-BM/T/8H
3831113521048
Muffler
6 Units In Stock
$ 4,451.86
$ 4,451.86

The Akrapovic M-BM/T/8H Slip-On Line is a full titanium muffler replacement engineered for the 2015 to 2018 BMW M3 (F80/F80 LCI) and 2015 to 2020 BMW M4 (F82/F83). The M-BM/T/8H trims 9.5 kg from the muffler assembly while delivering dyno-verified gains of +6 kW and +11 Nm from the S55 twin-turbo inline-six. The system connects at the OEM mid-pipe with no cutting or welding, produces the deep BMW M howl that escalates to a high-rev scream at full throttle, and is ECE type-approved for street use in supported regions. Exhaust tips are required and sold separately from the Akrapovic P-BM/T compatible series.

This Part Fits

Year Range Make Model Trim
2015-2018 BMW M3 Competition
2015-2020 BMW M4 Competition
2015-2020 BMW M4 CS
2016 BMW M4 GTS

Specifications

Detail Value
Brand Akrapovic
MPN M-BM/T/8H
UPC 3831113521048
System Type Slip-On Line (Titanium)
Compatible Vehicle 2015-2018 BMW M3 (F80), 2015-2020 BMW M4 (F82/F83)
Engine 3.0L S55 Twin-Turbo Inline-Six
Material Titanium
System Weight 7.2 kg (15.9 lbs)
OEM Weight 16.7 kg
Weight Savings 9.5 kg
Peak Power Gain +6 kW at 6,250 rpm
Peak Torque Gain +11 Nm at 3,050 rpm
Homologation ECE type-approved
Tips Required, sold separately (P-BM/T series)
Country of Origin Slovenia
Warranty 24 months

What's Included

  • 1x Akrapovic M-BM/T/8H left titanium muffler silencer
  • 1x Akrapovic M-BM/T/8H right titanium muffler silencer
  • Mounting clamps, bolts and sleeves
  • Akrapovic installation instructions

Frequently Asked Questions

Does the M-BM/T/8H include exhaust tips?

No. Exhaust tips are required and sold separately. The M-BM/T/8H is compatible with the Akrapovic P-BM/T series of titanium and carbon fiber tip sets designed for the F80/F82/F83 chassis.

Will the M-BM/T/8H fit the 2015 BMW M4 Convertible (F83)?

Yes. The M-BM/T/8H is engineered for the F82 coupe and F83 convertible M4 variants sharing the same S55 drivetrain and exhaust routing from 2015 through 2020.

Does this exhaust fit the BMW M3 2018?

Yes. The M-BM/T/8H is confirmed for the 2015 through 2018 BMW M3 (F80/F80 LCI) with the S55 3.0-liter twin-turbo inline-six engine.

Does the M-BM/T/8H require an ECU tune?

No ECU tuning is required. The M-BM/T/8H is a direct bolt-on replacement. An ECU recalibration is optional but may maximize the documented power gains.

How much power does the M-BM/T/8H add to the BMW M3 or M4?

Akrapovic dyno results show +6 kW at 6,250 rpm and +11 Nm of torque at 3,050 rpm on the stock BMW S55 engine with the M-BM/T/8H installed and no other modifications.

Is the M-BM/T/8H street legal in the United States?

The M-BM/T/8H is ECE type-approved for road use in supported markets. For US street use, verify compliance with your state's noise and emissions regulations before installation.

What is the weight saving compared to the factory exhaust?

The M-BM/T/8H weighs 7.2 kg versus the factory 16.7 kg muffler assembly, saving 9.5 kg concentrated at the rear of the vehicle for improved chassis balance.

How long does it take to install the M-BM/T/8H?

An experienced technician typically completes installation of the M-BM/T/8H in 1 to 2 hours. The bolt-on slip-on design requires no cutting, welding or special equipment beyond basic hand tools and a lift.

Installation Instructions

  1. Allow the vehicle to cool completely before beginning. Exhaust components reach extreme temperatures during normal operation.
  2. Raise and support the vehicle securely on a lift or jack stands to gain underside access.
  3. Spray penetrating lubricant on all OEM muffler clamp bolts and allow to soak for several minutes.
  4. Loosen and remove the factory muffler clamps and rubber hanger mounts. Retain OEM hardware.
  5. Slide the factory left and right mufflers off the OEM mid-pipe connection points and remove from the vehicle.
  6. Slide the Akrapovic M-BM/T/8H left and right titanium mufflers onto the OEM mid-pipe connection points.
  7. Attach the Akrapovic clamps and position rubber hangers on the factory mounting locations to support the system.
  8. Install your chosen compatible Akrapovic P-BM/T tip set onto the muffler outlets per the tip set instructions.
  9. Start the engine and inspect all connections for exhaust leaks. Retighten any hardware as needed.
  10. Perform a road test and re-inspect all connections after the first complete heat cycle.
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