Designed exclusively for the BMW R 1300 GS, the Akrapovič Slip-On Line muffler delivers a refined upgrade in performance, sound, and construction. Developed through extensive experience with BMW GS motorcycles and boxer engines, this double-flow muffler is manufactured from lightweight titanium and paired with a handmade carbon-fiber end cap. Its silver finish and profiled outer surface provide a distinctive appearance while adding strength and durability, complemented by an engraved Akrapovič logo.
The system is engineered to improve the BMW R 1300 GS riding experience with a deeper, fuller exhaust note and effective sound silencing. Back-to-back testing on an Akrapovič dynamometer against a stock BMW R 1300 GS recorded gains of 1.9 horsepower at 7,600 rpm and 3.3 lb-ft of torque at 2,300 rpm. The lightweight construction also reduces exhaust weight by 9.3 percent compared with the original stock muffler, helping support responsive handling without sacrificing durability or everyday usability.
This Akrapovič exhaust is EC/ECE type-approved and features a straightforward plug-and-play installation, with no engine remapping required. Once installed, it remains fully compatible with BMW Motorrad side cases, making it suitable for touring, commuting, and adventure riding. The product fits the BMW R 1300 GS and is supplied under the manufacturer and vendor part number S-B13SO4-HJGT. Choose the Akrapovič Slip-On Line for a premium titanium muffler upgrade that combines precise fitment, practical compatibility, enhanced performance, and a controlled, authoritative exhaust tone.
Features:
- Fitment: Designed exclusively for the BMW R 1300 GS.
- Construction: Lightweight titanium double-flow muffler with a handmade carbon-fiber end cap.
- Finish: Silver titanium finish with a profiled surface and engraved Akrapovič logo.
- Performance: Delivers tested gains of 1.9 horsepower and 3.3 lb-ft of torque compared with the stock exhaust.
- Sound: Produces a deeper, fuller exhaust note with effective sound silencing.
- Installation: Plug-and-play design requires no engine remapping.
- Approval: EC/ECE type-approved for compliant road use.
- Compatibility: Fully compatible with BMW Motorrad side cases after installation.
- Part Number: Manufacturer and vendor part number S-B13SO4-HJGT.