BMW R1300 GS / GSA Decat Headers

IN STOCK. READY FOR IMMEDIATE DISPATCH  

The R1300 GS (and GSA!) is a bike we are incredibly passionate about.  Ever since a certain Jedi took its predecessor around the world the GS has captured the imagination of bikers worldwide.  Probably the best “do everything bike” that you can buy, it’s little wonder that it sells so well.  Knowing what we achieved by tuning the R 1250 GS we were keen to get started on the R 1300 GS.  The stricter emissions regulations that the 1300 was subject to meant that there was a huge amount of untapped potential just waiting to be liberated.  Our map writers, true to form spent many hours dyno testing & datalogging the R 1300 GS.

 When they were done the exhaust team were just too keen to take possession of the development bike. A few prototypes later we were happy enough to put our name to the system.  So many small details have come together in the design including:

·         Optimised pipe size for performance and throttle response

·         Link pipe design to maximise scavenging.

·         Repositioning the lambda sensors.

·         Optimum tubing wall thickness to save weight without compromising durability & longevity.

With our R1300GS / GSA link pipe you can expect:

·         Reduction in weight from 6.3KG to 4.1KG

·         Power gain of 7bhp at max output. 11 bhp at 6000 RPM

·         Torque gain of 14nm (over 10%)

·         Massive improvement in throttle response, ride-ability and power delivery.  Throttle latency is virtually eliminated.

·         Faster engine spool up.

BHP UK will close for Christmas at 12pm GMT on 19/12/25 and will reopen on 05/01/26. Orders must be placed before 10am GMT on 19/12/25. Any orders received after this time will be processed when we return.

UK Orders

Orders placed before 3:00 PM GMT (Monday–Friday) are processed and dispatched the same day. Orders placed after 3:00 PM GMT are dispatched the next working day.

UK Shipping Methods:

ECU Flashers: Shipped via Royal Mail Special Delivery (guaranteed by 1:00 PM next working day).

EGR Blanking Plates: Sent via Royal Mail 2nd Class (typically arrives in 3–5 working days).

Exhaust Systems: Shipping times will vary. Once your Exhasut is ready it will be dispatched either by via Royal Mail Special Delivery (guaranteed by 1:00 PM next working day). For current lead times, please contact us.

International Orders

We use an express courier to ensure fast, reliable delivery. Shipping times vary based on your location, so feel free to contact us for an estimated timeframe.

ECU Flashers:
Orders are dispatched within 1 working day via UPS.

EGR Blanking Plates:
Orders are dispatched within 1 working day using the Royal Mail Tracked & Signed service.

Exhaust Systems:
Shipping times vary due to our quality control process. Once quality checks are complete, your order will be packed and scheduled for collection the next working day. For international deliveries, this process may take 1–3 weeks. Please contact us for up-to-date lead times.

Please note:
International shipments may incur local customs duties or import taxes. You will receive an email or text notification to complete any required payments before your order is delivered.

Important:
Orders placed on weekends or public holidays will be processed on the next working day.