This high-grade lightweight titanium system, finished with hand-crafted carbon-fibre tailpipes, weighs in at 35% lighter than stock and features a pair of collectors cast in the in-house foundry. The Slip-On Line (Titanium) comes with a specially developed Akrapovič control kit for a complete sound experience. The sound character offers a rich tone at normal cruising, rising to a deep sporty sound when the M3/M4 is driven more dynamically. It serves up a perfect sound at all rpms, delivering comfort and sportiness in one exhaust. A ground-breaking octagonal shape has been fashioned from lightweight titanium with a carbon-fibre outer sleeve for the tailpipes, and for more traditional buyers there is the classic cylindrical design.
The system delivers power increases of 8.0 kW (10.9 hp) at 6,000 rpm and a torque gain of 13.9 Nm at 5,000 rpm when tested on the Akrapovič dyno against a BMW M4 Competition with a standard stock exhaust. Remapping is not needed for this configuration, and it fits all vehicles (OPF and non-OPF), but the ECE certificate is valid only for cars equipped with an OPF filter.
 
Option to upgrade to the Evolution SYstem:
Evolution Link Pipe Set (Titanium) was tested and developed together with Slip-On Line (Titanium).
Constructed from high-grade titanium, this noticeably lighter-than-stock link pipe features a resonator in the middle part. Available for all countries (United States excluded), the link pipe delivers a power gain of 17.7 kW (24.1 hp) at 6,650 rpm and torque increases of 25.4 Nm at 6,650 rpm when tested on the Akrapovič dyno against a BMW M4 Competition (OPF/GPF) with a standard stock exhaust. Combined with a Slip-On Line (Titanium) delivering a deep, rich, and sporty sound without drone, it totally embraces the pure turbocharged inline six-cylinder sound. Remapping is mandatory. This product is meant for racetrack use and closed courses only.
This product fits on OPF and non-OPF vehicles.
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.