Description
The Akrapovič Slip-On Line (Titanium) is a precision-engineered exhaust system that brings out the true character and performance of the G80 / G81 BMW M3 and G82 / G83 BMW M4. Crafted entirely from lightweight titanium, this system is designed to enhance every aspect of the driving experience—from sound and performance to weight savings and aesthetics. More than just an exhaust, it’s the finishing touch the M3 / M4 deserves and how it should have come from the factory.
Sound
The Slip-On Line transforms the BMW M3 / M4’s exhaust note, unlocking its true character. At cruising speeds, the system delivers a smooth, refined tone, while acceleration produces a deeper, more aggressive growl that perfectly complements the car’s sporty nature. Enhanced natural overrun provides controlled pops and burbles, adding excitement to every gear change. With the advanced Akrapovič Control Kit regulating exhaust flow and tailoring the sound profile, the system ensures precise sound management in all driving conditions, all while eliminating intrusive droning.
Performance
Designed to optimise performance, the Slip-On Line (Titanium) delivers measurable gains that elevate the driving experience of the BMW M3 and M4. Its freer-flowing exhaust design reduces back pressure, improving gas flow and enabling the engine to respond more efficiently. Akrapovič’s dyno testing confirms a power increase of +10.9 hp at 6,000 rpm and +10.3 ft-lb of torque at 5,000 rpm, resulting in sharper throttle response and stronger acceleration. The system also reduces weight by 8.3 kg—35% lighter than the stock exhaust, improving agility, cornering precision, and overall handling. These benefits are achieved without the need for ECU remapping, ensuring seamless installation and compatibility with the factory setup of the M3 and M4.
Design
The Slip-On Line is as visually striking as it is functional. Featuring a smaller, sleeker back box, it replaces the bulkier standard unit with a design that is cleaner, lighter, and more purposeful. Akrapovič’s attention to detail is evident in every element, with components such as the valve housings and collectors cast in their in-house titanium foundry, ensuring durability and precision.
Two tailpipe designs are available: a bold octagonal option with carbon fibre outer sleeves or a classic cylindrical style. Both add a premium, motorsport-inspired finish while reducing overall weight, perfectly complementing the M3/M4’s aggressive styling.
Modern emissions and noise regulations often stifle the sound and performance of today’s sports cars. Akrapovič’s Slip-On Line addresses this head-on, restoring the visceral sound and responsiveness that define the BMW M3/M4 as true driver’s cars. Designed and built for seamless integration, this is a hardware upgrade with no compromises.
Compliance, Compatibility, and Warranty
The Akrapovič Slip-On Line (Titanium) is fully ECE type-approved, ensuring compliance with emissions and noise regulations for road use. No ECU remapping is required, ensuring seamless integration with the vehicle’s existing systems.
Warranty: Backed by Akrapovič’s 2-year product warranty.
Compatible Models:
- BMW M3 (G80 / G81) – 2021–2025
- BMW M3 (G80 / G81) – OPF/GPF – 2021–2025
- BMW M4 (G82 / G83) – 2021–2025
- BMW M4 (G82 / G83) – OPF/GPF – 2021–2025
Mandatory and Optional Components
Mandatory Components:
- Tail Pipe Set: Choose from Octagonal Carbon, Octagonal Chopped Carbon, or Round Carbon finishes.
- Control Kit – Specific to the model year
BMW M4 (G82, G83) – OPF/GPF 2026
Product Name: Control Kit
Product Code: P-HF1736This is a mandatory product for vehicles with engine type S58B30C (EU6 Phase 3).
This product has been developed to be installed with Slip-On Line (Titanium) S-BM/T/40H.
BMW M3 (G80, G81) 2026
Product Name: Control Kit
Product Code: P-HF1383
This product is mandatory for all non-OPF vehicles, as well as for vehicles equipped with an OPF and the S58B30A or S58B30B engine.
Optional Components:
- Evolution Link Pipe Set (Titanium or Stainless Steel) – Improves exhaust flow for enhanced sound and additional performance gains.
- Downpipe with / without Catalytic Converter (Stainless Steel) – Further amplifies the exhaust sound while delivering increased power and torque for closed-circuit applications.
- Akrapovič Sound Kit – Provides fully adjustable sound control, independent of the car’s drive mode.
- Rear Wing (Carbon or Chopped Carbon) – Enhances aerodynamics for improved performance and stability.
- Rear Carbon Diffuser (High-Gloss, High-Gloss Black or Chopped Carbon) – Adds a striking visual upgrade while contributing to weight reduction.
Fits: BMW M3 / M4 (G80 / G81 / G82 / G83)
Part No.: S-BM/T/40H
