Akrapovič BMW M2 CS Slip-On Line overview
The Akrapovič BMW M2 CS Slip-On Line S-BM/T/39H is a high-grade titanium exhaust system for the BMW M2 CS (G87) OPF/GPF. Developed as a Slip-On Line Titanium system, it combines lightweight construction, valve-controlled sound, acoustic reflectors, and ECE type approval for cars equipped with Otto/gasoline particulate filters.
This exhaust is built for drivers looking for a more focused Akrapovič upgrade while preserving confirmed product identification through the S-BM/T/39H code.
Titanium construction and acoustic design
This Akrapovič Slip-On Line S-BM/T/39H is constructed from high-grade titanium and features two valves, one for each side of the muffler. It also includes two acoustic reflectors that help tailor the gas flow and sound character.
The valve housings and collectors are cast in Akrapovič’s in-house titanium foundry. The use of lightweight materials reduces exhaust weight by 7.3 kg compared with the standard stock exhaust.
Together with the advanced Akrapovič control kit, the exhaust valves and acoustic reflectors help produce a smooth, rich tone during normal cruising and a deep, sporty sound when the BMW M2 Coupé / M2 CS is driven more dynamically.
Tailpipe design options
There is a choice of two tailpipe designs: the octagonal shape first seen on the exhaust for the BMW M3/M4, or a more traditional classic design. The twin sets of tailpipes feature outer sleeves hand crafted from carbon fibre.
The Tail Pipe Set Carbon must be ordered separately as a mandatory part. Choose one of the following product codes:
- TP-CT/69
- TP-CT/68
- TP-CT/73/CF
Performance and weight data
Akrapovič dyno testing against a BMW M2 Coupé with a standard stock exhaust registered a power gain of 3.9 kW / 5.3 hp at 2,800 rpm and a torque gain of 13.5 Nm at 2,800 rpm.
The Akrapovič system weighs 15.0 kg, compared with 22.3 kg for the standard stock exhaust. This gives a weight reduction of 7.3 kg, equal to 32.7%.
ECU remapping is not needed.
Technical data
| Specification | Unit | Stock | Akrapovič | Max gain | Maximum power | kW | 334.9 / 6550 rpm | 336.0 / 6400 rpm | +3.9 / 2800 rpm | Maximum power | HP (m) | 455.3 / 6550 rpm | 456.8 / 6400 rpm | +5.3 / 2800 rpm | Maximum power | HP (i) | 449.1 / 6550 rpm | 450.6 / 6400 rpm | +5.2 / 2800 rpm | Maximum torque | Nm | 539.9 / 4450 rpm | 543.2 / 4300 rpm | +13.5 / 2800 rpm | Maximum torque | lb-ft | 398.2 / 4450 rpm | 400.6 / 4300 rpm | +10.0 / 2800 rpm | Weight | kg | 22.3 | 15.0 | -7.3 | Weight | lb | 49.2 | 33.1 | -16.1 | Weight reduction | % |
|---|---|---|---|---|
| -32.7 | Installation time | min | ||
| 250 | ||||
| ECU remapping | No |
ECE approval and optional closed-circuit parts
The Slip-On Line Titanium exhaust system meets ECE type-approval conditions for the BMW M2 Coupé / CS (G87) with OPF filters. It is ECE type-approved for cars equipped with Otto/gasoline particulate filters.
Optional link pipes and downpipes are available for closed circuit usage, along with the optional Akrapovič Sound Kit. If these options are installed, the ECE type approval of the Slip-On Line Titanium system is no longer valid.
Fitment and ordering checks
This Akrapovič Slip-On Line S-BM/T/39H is listed for the BMW M2 CS (G87) OPF/GPF and is referenced for BMW M2 Coupé / CS (G87) models with OPF filters. Before ordering, confirm the exact vehicle version, OPF/GPF configuration, product code, and required Tail Pipe Set Carbon option.
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