BMW K 100 Conversion Kits

Inlet manifold flanges


As with our exhaust flanges, we have put a locating reccess on the inner diameter, to help with runner alignment when fabricating, and as per the exhaust flanges these are aimed at those wanting to fabricate their own bespoke turbo inlet plenums.

bmw inlet flange

Exhaust spigot flanges

£100 - £115 set of four

CNC machined precision exhaust flanges for both the 16V and 8V, these flanges are primarily for those wanting to fabricate their own turbo exhaust manifolds. 

We have machined a small locating recess on the outside to take the guess work out of centering the bends to the flange when fabricating. Every little helps so they say!

£100 for the 16V 

£115 for the 8v as they are longer  

bmw exhaust flanges

BMW K100-K1100 Conversion Kit


Due to popular demand we are now producing our own version of these BMW K100 motorcycle cylinder head conversion kits.

These kits have been painstakingly designed and developed over the last 5 years by fellow enthusiast Colin Milne in collaboration with Force Racing.

We now feel that having covered many thousands of road miles on the test engine over the last three years, that these kits are the best available for fit and function.

We have chosen to use ground aluminum tooling plate for the head and block seal plates unlike others, to ensure the best available gasket mating face. There is no lumpy bumpy rolled plate in the important areas of our kits.

The subtle differences in our kits are hard to spot over other inferior detailed kits, but  we feel they are a marked improvement on what is currently available.

As with all Force Racing components these kits are made in house at our own workshop, unlike others, therefore ensuring quality and availability are closely controlled by ourselves.

We will also be producing a set of ancilliaries as listed in the near future,

Coolant outlet

Remote/inline thermostat housing

Oil drain outlets

Coil on plug mounting plates

Induction ram pipes

Along with aluminium inlet manifolds for both N/A and turbocharger plenums, or alternatively we are happy to supply the CNC-machined flanges for customers to fabricate their own manifolds.

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Remote Thermostat Housing


As part of our conversion kits accessory package, these remote thermostat housings are extremely compact, ideal for fitting in a would-be cramped mini engine bay.

These use a small diameter motorcycle thermostat, which enables us to keep the overall diameter to a minimum.

Screw together construction with o-ring sealing, these come with a 25mm outside diameter outlet as standard, but can be made as a special order with larger outlets at a small extra cost.

Large 32mm outlet shown in the pictures for example only.

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