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PRO-STREET / PRO-RACE K&N Air Filter Rotary Kit Sizes 50mm/55mm and Tapered Bore

Weber IDA style Throttle Bodies with K&N Air Filter, and a choice of 50mm & 55mm parallel bore size, or 55/53/50mm tapered bore with high flow shaft and fasteners. Both sizes use special profile ram tubes for extra power gains.

OPTIONS:
- Throttle Size and Type (parallel vs tapered bore)
- Rotary Manifold
- Throttle Position Sensor
- Fuel Fittings
- Fuel Injectors
- Vacuum and Oil Fittings


Product Code:
801-923
Availability:
Available

Product Options









$1,452.00
Including GST for Australian Customers


AUD $1,320.00 (ex GST)
for International Customers


Product Details

THROTTLE BODY ORIENTATION:

The mounting flange on IDA - Rotary manifolds can be configured in 2 different ways.  It is vitally important that you tell us which way around your manifold is configured to ensure we supply an IDA throttle body with the correct TPS location, cable actuation and opening direction. When ordering online please add this information to the comments section.


Check out the diagram below to confirm how your manifold is configured.


Rotary IDA Flange Alignment Diagram Revision 1





LINKAGE AND RAM TUBE COLOURS:


Due to overwhelming demand from our customers, we are transitioning our standard colour from Blue to Black.  Black is a classic colour, and goes with pretty much every engine bay colour and style.


This includes Ram Tubes, Linkages, Cable Pulleys, Drop Links, Bell Cranks, and more.


Don't worry if you love blue, you can still get your kit in blue.  There will be a small premium of $40 per kit to cover us sending out your kit of parts to be anodized blue.  If you would like blue anodizing, please let us know by typing in the notes area of your order.




ACCESSORIES:

PART NUMBERDESCRIPTIONIMAGE
ROTARY IDA MANIFOLDSRotary IDA Manifolds



QUALITY ASSURANCE:


Every single throttle bore and throttle plate are measured and matched as a pair to ensure the most perfect throttle fit and consistency across every EFI Hardware throttle body.





EFI HARDWARE TAPERED BORE OPTION:
 

Our customers have experienced consistent torque gains using Tapered Bore Throttles over traditional Parallel Bore Throttles without a loss in engine power.  This creates even more torque under the curve for better acceleration throughout the rev range of your engine.






EFI HARDWARE PRODUCE 6° THROTTLE PLATES:


In the past, 12° throttle plates were the industry standard.  The problem with 12° throttle plates, is that as the plates are moved off the closed position, the change in airflow is huge.  It makes it very difficult to drive smoothly at lower throttle openings.


At EFI Hardware, we only use 6° throttle plates.  This improves off idle and cruise driveability making your vehicle far more enjoyable to drive.



SKF_Racing_Logo

We now recommend

and use SKF bearings.