The J.E.T. Air Stack

The Harley-Davidson ® High - Performance Cylinder Head Design and Engine Modification Shop
Complete Engine Rebuilds - Fuel Injection and Carburetor Tuning - Chassis Work - Parts - and More ...
Very competitive pricing

Harley-Davidson® High-Performance & Reliability Specialists

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NEW & Improved
J.E.T. AirStack
PATENT PENDING

FEATURES:

1 1/8" LONG VELOCITY STACK
VACUUM VENT SYSTEM
RE-USEABLE AIR CLEANER
STAINLESS STEEL BREATHER BOLTS

1 1/8" VELOCITY STACK:

Increases intake velocity through the entire intake track
Increased Horsepower
Increased Torque

VACUUM VENT SYSTEM:

Internal vent lines routed to base of velocity stack use intake velocity to generate more vacuum inside engine
Reduces reversion
More horsepower
Better ring seal
Reduction of oil carry over into the air cleaner

Below is a bird's-eye-view of how the J.E.T. AirStack works. The orange arrows indicate rocker box vent air, the blue arrows indicate intake air, and the dotted lines indicate the internal design of the velocity stack and breather vents.
The construction of the velocity stack enables the engine to pull more of a vacuum out of the engine which in turn allows the piston rings to seal better. This then improves combustion efficiency, horsepower, and torque. Click on the image for a larger view.

AIR CLEANER:

Clean it
Re-Oil it
RE-USE IT!!!

STAINLESS STEEL BREATHER BOLTS:

NO RUST
Straight shaft breather bolts provide more volume for breathers to help maintain vacuum in engine
Better sealing of the umbrella valves in rocker boxes


Applications:	Description:	Part #:	Cost:
PHASE 1 (small air cleaner for engines up to 106 cu") Uses TC or EVO air cleaner cover
84-99 EVOs (CV or Mik Carbs)	J.E.T. AirStack, 1.125" velocity stack, internal vent lines, washable air cleaner MADE IN USA	AP.200	189.95
*99- present TC** (CV or Mik Carbs / single runner EFI)	J.E.T. AirStack, 1.125" velocity stack, internal vent lines, washable air cleaner MADE IN USA	AP.202	189.95
PHASE 2 (Bigger look and more air cleaner volume for large displacement motors) Requires EVO style air cleaner cover
84-99 EVOs (CV or Mik Carbs)	J.E.T. AirStack, 1.125" velocity stack, internal vent lines, washable air cleaner MADE IN USA	AP.201	199.95
*99- present TC** (CV or Mik Carbs / single runner EFI)	J.E.T. AirStack, 1.125" velocity stack, internal vent lines, washable air cleaner MADE IN USA	AP.203	199.95
New '08 J.E.T. AirStack
'08 FLH Models	J.E.T. AirStack, 1.125" velocity stack, internal vent lines, washable air cleaner MADE IN USA *check back for pics of the new unit within the coming days	AP.204	189.95
EXTRAS
Paint Backing Plate: Textured Black		ASL.100	10.00
Polish Visible Parts of Backing Plate		ASL.101	20.00
Phase 2 Air Cleaner Cover: Chrome		AP.102	51.25
Phase 2 Air Cleaner Cover: Black		AP.103	51.25
*All J.E.T. AirStacks* come complete with installation instructions and hardware.**

DYNO GRAPH
Compares before and after installation
See increase of 6 HP and 4 ft lbs TORQUE

Download a complete .PDF of order form and fax in
(If you use the online method we will need to call you for credit card information, if you download the .pdf all information we need is available for processing on this form.)

Our Customers Say:

"I just installed your new '08 AirStack with great ease. I can't explain it, but as soon as I started the bike it sounded better and when I got on it, my bike was noticeably smoother. I am satisfied with the product and now I am looking into one of your high performance packages. I haven't decided if I want to go to 103, 106, or 113 cubic inches, but I do know where I'm getting the work done. Thanks J.E.T."

Tom Kelly
Phoenix, AZ

counter updated 5/2/08