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Motorcycle performance enhancements, special parts and accessories for BMW.
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Inlet Ducts BMW Inlet Duct R1100S on the Dyno R1100S Comparisons


 

BMW Performance Products

Boxer Performance was started in late 1999 by Mark (Lennie) Lennon after he purchased a 1998 BMW R1100S and decided to modify and tune the bike for better power delivery.

Boxer Performance is your only source for the InDuct, the large bore carbon fibre intakes and the home of Lennies Rocket Sprockets.

The InDuct is a simple device which provides performance and economy gains by reducing the restrictive intake and helping enhance the ram air effect into the airbox. This works particularly well when used with an aftermarket exhaust and a suitably tuned chip. 

The InDuct was developed to remove the restriction in the standard intake providing a much larger cross sectional area and a larger scoop at the front. It is a two piece hand made carbon fibre replacement for both standard items.

The InDuct is available now for the R1100RT, R1100S, R1100RS, R1100R, R1100GS, R1150RT, R1150RS, R1150R and R1150GS. 
Future development will involve the R1200 series as well.

Lennies Rocket Sprockets are available for all R259 models and improves the midrange torque for better throttle response, smoother running and the ability to run in higher gears improving fuel consumption.

The main aim for the cam sprocket tuning was to improve midrange performance and torque delivery so that part throttle response was greatly improved.

I have many GS customers including the R1200GS that like the result of the fitment of the sprockets giving them much better bottom and midrange throttle response satisfying what they have been wanting for slower off road work.

For all enquiries, please email lennie@boxer-performance.com