American Motorcycle Dealer AMD 177 April 2014 | Page 44

Zipper’s Muscle kit for 2008-2014
Touring models
ZIPPER’S latest Muscle kit, made up of a top end and
cam, has been created for owners of Screamin’ Eagle
CVO ‘08-‘14 Touring models or riders with a Factory
110ci Stage I kit.
The 110” heads are ported to increase velocity and
are assembled with Zipper’s
Step-Lock guides, flow-enhancing valves and
performance springs. The cylinder head gasket
surfaces are trued and then the compression is raised
by precisely fitting proprietary 10.5:1 forged pistons
to the stock 110ci cylinders using torques plates.
Red Shift cams, Pro-Taper pushrods and Dual Piston
cam chain tensioners are included with Axtell’s oil
pressure bypass valve for increased life and valve train
control. A pre-mapped ThunderMax with Wave Tune
AutoTune is included, allowing dyno-free set-up. High
flow injectors are included with the kit (however, the
kit does require the separate purchase of a H-D 58mm
Screamin’ Eagle TBW throttle body).
Zipper’s states that once the kit is installed both
torque and horsepower are increased across the rpm
range, with horsepower raised by 45 percent, and
torque over 100ft/lbs from 2,500 through 6,500rpm.
ZIPPER’S PERFORMANCE PRODUCTS
Elkridge, Maryland, USA
Tel: [phone]
[e-mail]
www.zippersperformance.com

PARTS AND ACCESSORIES