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) with OPF filters. Developed as part of the Slip-On Line Titanium range, it combines lightweight construction, valve-controlled sound, and ECE type approval for compatible cars equipped with Otto/gasoline particulate filters.
This system is designed to create a more engaging exhaust character while keeping the product specification clear through the S-BM/T/39H code. It is a focused upgrade for drivers who want Akrapovič engineering, reduced exhaust weight, and confirmed dyno-tested performance data.
Titanium construction and acoustic design
The exhaust is constructed from high-grade titanium and includes special parts designed for the BMW M2 Coupé / M2 CS (G87) platform. It features two valves, one for each side of the muffler, together with two acoustic reflectors.
The valve housings and collectors are cast in Akrapovič’s in-house titanium foundry. This construction supports a lightweight exhaust design while helping the system manage gas flow and sound character across different driving conditions.
Together with the advanced Akrapovič control kit, the exhaust valves and acoustic reflectors help deliver a smooth, rich tone during normal cruising and a deep, sporty sound when the M2 CS is driven more dynamically.
Tailpipe design options
The system offers a choice of two tailpipe design styles: the octagonal shape first seen on the BMW M3/M4 exhaust, 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 maximum 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 confirmed 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, together 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) and is referenced for BMW M2 Coupé / CS (G87) models with OPF filters. Before ordering, confirm the exact vehicle version, OPF configuration, product code, and required Tail Pipe Set Carbon option.
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