The Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H combines advanced titanium engineering, distinctive V8 acoustics, and premium carbon-fibre styling to enhance the performance and driving experience of the BMW XM.
Manufactured from high-grade titanium, this performance exhaust system incorporates integrated acoustic reflectors, two electronically controlled exhaust valves, and handmade carbon-fibre tailpipes. Its lightweight design achieves a 50.7% weight reduction compared to the factory exhaust while delivering measurable power and torque improvements.
Developed for drivers seeking a more engaging exhaust sound without sacrificing everyday refinement, the Slip-On Line delivers a carefully tuned acoustic experience that evolves naturally with engine speed and load.
High-Grade Titanium Construction and Lightweight Design of Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H
The exhaust system is manufactured using high-grade titanium, providing excellent strength and durability while significantly reducing overall weight.
Complex components, including the exhaust valve housings and two collectors, are produced in Akrapovič’s in-house titanium foundry, ensuring precision manufacturing and exceptional construction quality.
Compared to the original BMW XM exhaust system, the Slip-On Line delivers impressive weight savings:
| Weight Comparison | Value |
|---|---|
| Factory exhaust | 22.4 kg |
| Akrapovič exhaust | 11.1 kg |
| Weight reduction | 11.35 kg |
| Percentage reduction | 50.7% |
This substantial weight reduction is achieved without compromising the system’s refined design, premium materials, or distinctive acoustic characteristics.
Dual Exhaust Valves for Dynamic Sound Control
The Slip-On Line incorporates two integrated exhaust valves, positioned on opposite sides of the muffler.
Operated by the Akrapovič control kit, these valves regulate exhaust gas flow to create a dynamic sound experience according to engine operating conditions.
The valve-controlled design allows the system to deliver a refined sound at lower engine speeds while producing a more expressive V8 soundtrack during dynamic acceleration.
For customers seeking additional exhaust sound control, the optional Akrapovič Sound Kit (P-HF1553) is available separately.
Performance Gains – Up to +10.3 HP and +12.6 Nm
In addition to its distinctive sound and lightweight construction, the titanium exhaust system provides measurable performance improvements.
During testing on the Akrapovič dynamometer, compared against a BMW XM Label equipped with the factory M exhaust system, the Slip-On Line achieved:
| Performance Measurement | Maximum Gain |
|---|---|
| Power increase | +7.6 kW / +10.3 hp at 5,750 rpm |
| Torque increase | +12.6 Nm at 5,750 rpm |
| Exhaust weight reduction | 50.7% |
These figures represent the maximum measured differences at the specified engine speed rather than differences between peak output figures.
Actual performance improvements may vary depending on vehicle configuration, operating conditions, and testing methods.
Handmade Carbon-Fibre Tailpipes of Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H
The exhaust is finished with two distinctive tailpipe assemblies featuring titanium inner sleeves and handmade carbon-fibre outer sleeves.
The combination of lightweight titanium and carefully crafted carbon fibre provides a premium appearance that complements the BMW XM’s bold exterior design.
The tailpipe assemblies combine precision manufacturing with distinctive styling, creating a recognisable Akrapovič finish.
Plug-and-Play Installation Without ECU Remapping
The Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H is designed for plug-and-play installation and does not require ECU remapping.
The manufacturer’s estimated installation time is approximately 240 minutes (4 hours).
Professional installation is recommended to ensure correct exhaust alignment, valve operation, and integration with the vehicle’s existing systems.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Akrapovic |
| Product | Slip-On Line |
| Product code | S-BM/T/41H |
| Vehicle compatibility | BMW XM (G09) |
| Exhaust material | High-grade titanium |
| Tailpipe construction | Titanium inner sleeves with handmade carbon-fibre outer sleeves |
| Exhaust valves | 2 integrated valves |
| Acoustic reflectors | Integrated |
| Maximum power gain | +7.6 kW / +10.3 hp |
| Maximum torque gain | +12.6 Nm |
| Factory exhaust weight | 22.4 kg |
| Akrapovič exhaust weight | 11.1 kg |
| Weight reduction | 50.7% |
| ECU remapping required | No |
| Installation time | 240 minutes |
| Type approval | EC/ECE for compatible OPF/GPF-equipped vehicles |
| Optional accessory | Akrapovič Sound Kit P-HF1553 |
Akrapovič Dyno Test Results
| Measurement | Stock | Akrapovič | Maximum Gain |
|---|---|---|---|
| Power (kW) | 549.0 / 6,300 rpm | 554.9 / 6,400 rpm | +7.6 / 5,750 rpm |
| Power (HP metric) | 746.4 / 6,300 rpm | 754.5 / 6,400 rpm | +10.3 / 5,750 rpm |
| Power (HP imperial) | 736.2 / 6,300 rpm | 744.1 / 6,400 rpm | +10.2 / 5,750 rpm |
| Torque (Nm) | 1,061.3 / 2,500 rpm | 1,062.6 / 2,500 rpm | +12.6 / 5,750 rpm |
| Torque (lb-ft) | 782.8 / 2,500 rpm | 783.7 / 2,500 rpm | +9.3 / 5,750 rpm |
| Weight (kg) | 22.4 | 11.1 | -11.4 |
| Weight (lb) | 49.4 | 24.4 | -25.0 |
Optional Products
Akrapovič Sound Kit – P-HF1553
The optional Akrapovič Sound Kit provides additional control over the exhaust valve operation, allowing drivers to personalise their exhaust sound experience.
The Sound Kit is available separately.
Why Choose the Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H?
The Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H offers a combination of premium titanium construction, lightweight engineering, distinctive V8 acoustics, and refined styling.
With its integrated acoustic reflectors, dual exhaust valves, handmade carbon-fibre tailpipes, and proven performance improvements, the system enhances both the driving experience and appearance of the BMW XM.
The substantial 50.7% weight reduction, plug-and-play installation, and EC/ECE approval for compatible OPF/GPF-equipped vehicles make it a compelling upgrade for drivers seeking high-quality exhaust engineering.
Discover the Akrapovic BMW XM (G09) Slip-On Line S-BM/T/41H at Opsholders – One Performance Source.















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