Dell Orto PHM alloy bellmouth trumpets - 70mm air velocity stacks

Dell Orto PHM alloy bellmouth trumpets - air velocity stacks


Dell Orto PHM alloy bellmouth trumpets - air velocity stacks


Pair of alloy air velocity stacks/bellmouth trumpets, specifically designed to fit the Dell Orto PHM Series carburettors, such as the PHM38 (commonly found on the BMW R90S), PHM40 and PHM41

Featuring the correct M52 threads (52 x 1.25mm) for a direct and perfect fit on these PHM "pumper" Dell Orto carburettors. it includes a fine alloy gauze mesh for a modicum of intake filtering of larger debris and dirt. Total length is circa 70mm.

Outstanding build quality and finish, dazzling looks and a must for race developed engines. 

We also have available for sale the alternative trumpets made of black ABS plastic, please see our other listings.

Sold as a pair.


IMPORTANT: 

1 - Please note that carburation/ignition tuning may be required 

2 - Air filtration will be reduced in comparison to K&N and original paper replacement air filters thus possibly accelerating engine wear. These trumpets are not recommended for long road usage. They are however ideal for race engines that require higher volumes of air intake.

3 - Will NOT fit other carburettors such as the Bing CV (Constant Vacuum) fitted to R75, R80, R90, R100, Monolevers, Paralevers etc.

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