Borla XR-1 Multi-Core 3in Ctr-Ctr Round 16in x 6.25in Rotary Engine Equipped Racing Muffler

With a distinctive sound as you shift through the gears, coupled with enhanced power and torque, all encapsulated in a full titanium system, the Slip-On Line (Titanium) offers The Akrapovic experience while meeting ECE type approval. Constructed from lightweight high-grade titanium alloys and finished with two sets of carbon-fibre / titanium tailpipes, the system features complex parts crafted at the in-house titanium foundry, including the housing of the valves and collectors from the central muffler to the tailpipes. Two valves – one on each side of the muffler – tailor the gas flow to help produce that unmistakable Akrapovic sound, which is distinctly different from the X5M with a stock system. The exhaust tone is most noticeable as you move through the gears and accelerate, and this can be further controlled through the addition of the optional Akrapovic Sound Kit to provide increased aural pleasure. Akrapovic has achieved power gains of 12.1 hp at 2,400 rpm and torque increases of 35.4 Nm at 2,400 rpm when tested on The Akrapovic dyno against a BMW X5M with a stock M Sport exhaust system for comparison.

This product is constructed from high-grade titanium, with integrated acoustic reflectors, designed to reflect the external sound toward the cabin and enhance the overall acoustic experience of The Akrapovic exhaust. Two integrated exhaust valves, each on one side of the muffler and operated by The Akrapovic control kit, tailor the gas flow for a rewarding sound experience. The sound has a linear flow based on the rpm and engine load, offering a smooth and harmonic tone at lower revs and rising to a distinctive V8 rumble in the mid-range before reaching a crescendo of high-frequency sporty sound when the revs rise higher.The exhaust is finished with two sets of eye-catching tailpipes featuring a titanium inner sleeve and a hand-made carbon-fibre outer sleeve. The complex parts of this Slip-On Line (Titanium), including the valve housings and the two collectors, are all cast in the company’s in-house titanium foundry. The system is 11.35 kg (50.7%) lighter than the standard stock system. It offers power and torque increases of 7.6 kW (10.3 hp) and 12.6 Nm, respectively, both at 5,750 rpm, when tested on The Akrapovic dyno against a BMW XM Label with an M exhaust system. The plug-and-play installation means no remapping is required, and it comes with EC/ECE type approval. A further upgrade of the Slip-On Line (Titanium) system is available through the optional Evolution Link Pipe Set (Titanium), aimed at those who want higher performance gains. Designed for exclusive track use only, installation of the Evolution Link Pipe Set (Titanium) means that the EC/ECE type approval for the Slip-On Line (Titanium) is no longer valid. The Slip-On Line (Titanium) exhaust system is ECE type approved for cars equipped with an Otto/gasoline particulate filter.