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Titanium Slip-On That Cuts 7.3 kg and Adds Proven Power to the BMW M2 G87 S58 Engine
The Akrapovic S-BM/T/34H Slip-On Line replaces the factory rear silencer on the 2023 to 2025 BMW M2 Coupe (G87) with a high-grade titanium assembly built for the S58 3.0L twin-turbo inline-six. Dyno testing confirms gains of +3.9 kW and +13.5 Nm at 2,800 rpm with a weight reduction of 7.3 kg, a 32.7% reduction from the OEM rear silencer. The S-BM/T/34H is compatible with both OPF and non-OPF G87 variants. ECE type approval is valid for OPF-equipped vehicles only; on non-OPF models this system is intended for off-road or competition use. The system ships without exhaust tips, which are sold separately, and the optional Akrapovic Sound Kit is available for wireless valve control. Bolt-on installation with no cutting or welding; estimated shop time is approximately 60 minutes.
Key Features
- Dyno-Proven Power +3.9 kW and +13.5 Nm at 2,800 rpm on the G87 S58 platform, providing sharper mid-range throttle response across daily driving and track use
- 32.7% Weight Reduction The S-BM/T/34H removes 7.3 kg from the rear of the G87, improving rear weight balance and contributing to sharper turn-in and acceleration
- High-Grade Titanium with Cast Components Housing, collectors, and valve bodies are produced from titanium alloys with cast components from Akrapovic's in-house foundry for exact tolerances
- Dual Integrated Valves One per side for optimized exhaust flow and sound management across the rpm range of the M2's S58 engine
- OPF and Non-OPF Compatible Direct fitment for 2023 to 2025 BMW M2 G87 regardless of Otto Particulate Filter configuration; ECE approval applies to OPF-equipped vehicles only
- Optional Sound Kit Available Akrapovic Sound Kit sold separately enables wireless valve control for adjustable sound output
- Tips Sold Separately Carbon fiber tip set TP-BM/34H (octagonal or cylindrical) must be ordered separately to complete the installation appearance
This Part Fits
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2023-2025 | BMW | M2 | M2 Coupe |
Specifications
| Detail | Value |
|---|---|
| MPN | S-BM/T/34H |
| UPC | 3831126423872 |
| Brand | Akrapovic |
| System Type | Slip-On Line (rear silencer replacement, tips sold separately) |
| Primary Material | High-grade titanium with cast components |
| Weight Reduction | 7.3 kg (32.7% lighter than OEM rear silencer) |
| Power Gain | +3.9 kW at 2,800 rpm |
| Torque Gain | +13.5 Nm at 2,800 rpm |
| Valve Configuration | Dual integrated valves (one per side) |
| Compatible Chassis | BMW M2 G87 (OPF and non-OPF) |
| Engine | 3.0L Twin-Turbo Inline-Six (S58) |
| Estimated Install Time | 60 minutes (professional) |
| Country of Origin | Slovenia |
| Warranty | Akrapovic limited lifetime warranty against manufacturing defects |
What's Included
- Akrapovic S-BM/T/34H titanium slip-on rear muffler with dual integrated valves
- Two acoustic reflectors for sound refinement
- Cast titanium collectors and valve housings
- All mounting hardware and gaskets
- Akrapovic installation instructions
- Note: carbon fiber tail pipes (TP-BM/34H) sold separately
Frequently Asked Questions
Does the Akrapovic S-BM/T/34H fit both the 2023 and 2024 to 2025 BMW M2 G87?Yes. The S-BM/T/34H is confirmed for all model years 2023 to 2025 of the BMW M2 Coupe (G87) equipped with the S58 3.0L twin-turbo inline-six. It fits both OPF and non-OPF G87 configurations without modification.
How much power does the S-BM/T/34H add to the BMW M2?Akrapovic's dyno results on the G87 show gains of +3.9 kW and +13.5 Nm at 2,800 rpm. This is meaningful on the S58 platform because the gains occur at a mid-range rpm that directly improves acceleration from rolling speed and track exit performance.
How much weight does the S-BM/T/34H remove?The S-BM/T/34H removes 7.3 kg from the rear of the G87, which represents a 32.7% reduction versus the factory rear silencer. The reduction in rear mass improves weight distribution and contributes to sharper steering response and corner entry stability.
Are tips included with the S-BM/T/34H?No. The S-BM/T/34H ships without exhaust tips. The Akrapovic carbon fiber tail pipe set TP-BM/34H is sold separately and available in octagonal or cylindrical configurations. Contact Black Ops Auto Works to add the correct tip set to your order.
Is the Akrapovic S-BM/T/34H street-legal on the BMW M2 G87?The S-BM/T/34H holds ECE type approval for G87 BMW M2 models equipped with the OPF (Otto Particulate Filter). On non-OPF G87 variants, this system is intended for off-road and competition use only. Confirm your vehicle's OPF status with your BMW dealer before ordering if street legality is a requirement.
What is the Akrapovic Sound Kit and is it required?The Akrapovic Sound Kit is an optional accessory that allows wireless control of the dual exhaust valves on the S-BM/T/34H. It is not required for installation or operation; the valves function automatically based on driving mode and RPM without it. The Sound Kit is sold separately and simply adds wireless override capability.
What does the BMW M2 G87 sound like with the Akrapovic S-BM/T/34H?The S-BM/T/34H delivers a deep, resonant tone from the S58 inline-six that is refined and controlled at low throttle and during highway cruising, with no cabin drone. Under hard acceleration the exhaust opens into a sharper, more aggressive note through the rev range that is substantially more characterful than the factory system.
What is the warranty on the Akrapovic S-BM/T/34H?Akrapovic covers the S-BM/T/34H with a limited lifetime warranty against defects in manufacturing. This applies under normal street and occasional track use conditions. Contact Black Ops Auto Works for full warranty registration instructions.
Installation Overview
- Lift the BMW M2 G87 safely and support on appropriate stands or a lift
- Allow the factory exhaust to cool completely before beginning
- Remove the factory rear silencer clamp from the center pipe connection
- Unhook the OEM rear silencer from the rubber hanger isolators
- Lower and remove the OEM muffler assembly from the vehicle
- Position the Akrapovic S-BM/T/34H and connect to the center pipe
- Hang the muffler on the factory rubber hanger isolators
- Install Akrapovic clamps hand-tight and verify alignment
- Install the carbon fiber tip set (TP-BM/34H, sold separately) and verify positioning in the rear diffuser openings
- Torque all clamps to specification and verify no exhaust leaks at idle and under throttle
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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