OP - Optional part
This product is constructed from high-grade austenitic stainless steel and weighs just 8.09 kg, 22% lighter than stock.
A unique tuned resonator has been developed for the link pipe to work with the new engine to supply a unique sound experience, producing a deep, rich, and sporty sound with no unwanted drone or streaming, perfectly aligned with a pure straight six-cylinder engine.
Power is increased by 8.7 kW (11.8 hp) at 5,600 rpm and torque rises by 17.1 Nm at 4,100 rpm when tested on the Akrapovič dyno with a Slip-On Line with Link Pipe Set against a standard stock exhaust on the BMW M440i.
Meant for track use only and for OPF vehicles, remapping is mandatory with this product.
Fitment notice: This product fits the BMW M340i and M440i equipped with an OPF.
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.
PERFORMANCE:
| Unit | Stock | Akrapovic | Max gain |
| Maximum power | kW | 280.4 / 5500 rpm | 286.9 / 5600 rpm | + 8.7 / 5600 rpm |
| HP (m) | 381.2 / 5500 rpm | 390.1 / 5600 rpm | + 11.8 / 5600 rpm |
| HP (i) | 376.0 / 5500 rpm | 384.7 / 5600 rpm | + 11.7 / 5600 rpm |
| Maximum torque | Nm | 538.9 / 2750 rpm | 544.9 / 4000 rpm | + 17.1 / 4100 rpm |
| lb-ft | 397.5 / 2750 rpm | 401.9 / 4000 rpm | + 12.6 / 4100 rpm |
| Weight | kg | 10.4 | 8.1 | - 2.3 |
| lb | 22.9 | 17.8 | - 5.1 |
| % | | | - 22.0 |
| Installation time | min | | 90 | |
