The full airflow potential of your carburettor(s) may be limited by the contraction effect in the inlet air stream caused by an abrupt entry into the carburettor mouth.

Flow bench tests have proven that a suitably shaped entry to the carburettor can result in a gain of almost 6% in airflow over a straight carburettor entry and almost 12% gain over a straight 'ram' tube.

Manufactured in high quality cast aluminium alloy for added benefit of reducing the intake noise level.

All units are hand finished and presented in an alloy/bright silver look with clear powder coat for longevity.

* Dependent on driving conditions and manner
** Applies only to HI-FLOW models

Available in a choice of 3 types for SU Carburettors; HI-FLOW,  
ULTRA HI-FLOW and ULTRA-HI-FLOW Tapered offset.
Weber type available only in ULTRA HI-FLOW

The HI-FLOW Sports Air Filter features a replaceable paper element filter to meet the increasing demand for a Performance Air Filter having a high efficiency in filtering our harmful particles.

OR choose the ULTRA HI-FLOW Sports Air Filter now featuring the K&N "FILTERCHARGERä" element.

The ONLY competition element meeting dust efficiency levels demanded by engine manufacturers.
HI-FLOW WITH MINIMUM RESTRICTION:

K&N's Filtercharger construction of grid woven cotton and bonded wire mesh straightens incoming air and reduces turbulence, allowing a more direct and higher volume of clean air into the carburettor.

Conventional element materials are permeated with millions of tiny irregular passages that screen dirt particles out of the air.

These passages eventually clog and become restrictive, resulting in significant loss of engine power and fuel economy.

 K&N's Filtercharger is a one-time purchase and requires cleaning every 30,000 to 50,000 miles. The K&N Filtercharger's filtering media exposes approximately five times greater surface area over the element circumference than that of other filters, enabling the filter to hold more dirt particles.

These particles, by virtue of air moving through the filter at low velocity (due to very little restriction), cling to the outside of the filter and become an integral part of Filtercharger's filtering media. 

This build-up of dirt particles in oil creates more irregular passages that actually create an additional filtering barrier with use.

Not until very fine particles close this secondary 'filter layer' does the Filtercharger begin to clog. Then, because it is made of re-useable materials, you can just clean it, apply fresh K&N Filter oil and reinstall.

MORE AIRFLOW, HORSEPOWER AND LONG LASTING PERFORMANCE.

Weber DCOE, IDA, IDF Style
Ultra Hi-Flow

Weber DCOE, IDA, IDF Style
Ultra Hi-Flow
Tall element 3 1/4"

Ultra Hi-Flow Pod
For SU HIF 6/44 
and
split Weber DCOE Installations