Evolution Link Pipe Set (Titanium) was tested and developed together with Slip-On Line (Titanium).This full titanium accessory features complex parts cast in Akrapovics in-house foundry and is constructed from lightweight high-grade alloys to reduce weight. Combining the Evolution Link pipe set (Titanium) with the Slip-On Line (Titanium) exhaust creates a system that is perfectly in tune to deliver the very best aural experience in all driving modes. Akrapovics sound engineers have worked hard to produce a sporty V8 sound with an unmistakable Akrapovic character, while keeping it smooth and eliminating any drone, all designed for maximum everyday comfort. The sound is closer to that of a muscle car and delivers an exhilarating soundtrack. With a cast collector on the link pipe, where the gases from both sides of the engine mix, the link pipe provides a smooth flow for the gas and aids in providing the perfect sound as an ideal upgrade for the Slip-On Line (Titanium). Akrapovic has achieved power gains of 17.7 hp at 4,550 rpm and torque increases of 27.3 Nm at 4,550 rpm when tested on The Akrapovic dyno against a BMW X5M with a stock M Sport exhaust system for comparison. With the installation of this optional accessory, ECE type approval for the Slip-On Line (Titanium) exhaust system is not valid.With the installation of the Evolution Link pipe set, ECE type approval for the Slip-On Line (Titanium) exhaust system is not valid, and remapping the ECU is mandatory when it is fitted.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.This product does not fit on facelift 2023 model.