BIG 107" UPGRADE KIT

For 2007-2012 Harley-Davidson Models

AVAILABLE FOR STOCK HARLEY® TWIN CAM 96 C.I. ENGINES
GO FROM 68 TO OVER 120 REAR WHEEL HORSEPOWER

The 107” upgrades offered by Star Racing delivers more bang for your buck than any other upgrade on the market. Our performance packages typically produce 120+ horsepower depending upon your current exhaust system.  Installation of the kit maintains the appearance of a stock engine, but you will definitely feel the difference!  Finally, your bike will be the fastest and your buddies will be scratching their heads trying to figure out what you have done.  One work week turnaround (dependent upon throttle body replacement).

Call 1-800-841-7827 to make an appointment.

Want to see more of what the Thrasher kit can do for your bike?

Click the links below to see more dyno sheets from real Star Racing customers!

Think you have enough hp with the 106 Kit?

Check out this customer who gained over 30 hp when switching from the 106 to the 107 Kit!

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Turn-Key Package Price: $4,825

Twin Cam 103" Upgrade

For 2007-2012 Harley-Davidson Models

The 103”upgrade offered by Star Racing is an excellent value for the enormous increase in performance and power that it delivers! Our performance packages have produced well over 100 horsepower while maintaining the drivability you desire.  Finally, your bike will be fast and fun and you can be the leader of your pack.  One work week turnaround. 

Call 1-800-841-7827 for pricing and to make an appointment.  

Included In The Package:

• Heads – Pro Ported & Machined
• Oversized Valves – Intake & Exhaust
• Cams
• Pistons – 103 Cubic Inches
• Cylinders – Bored & Honed
• Ignition
• Cam Bearings
• Race Tuner
• High Flow Air Filter
• Adjustable Push Rods
• All Necessary Hardware, Gaskets & Fluids
• Complete Labor
• Before & After Dyno Test

Turn-Key Package Price:  $4,595

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Twin Cam 95" & 98" Harley Thrasher Kit

For 1999-2006 Harley-Davidson Models

A stock twin cam Harley has around 64 horsepower and about 75 foot pounds of torque.  The Star Racing Thrasher Kit increases the horsepower on average to 100+ and the torque to 96 foot pounds.  Turn around time is typically one week, two weeks maximum, so you will be back on the road in no time!

Since 1980, Star Racing has been dedicated to providing its customers with the best in motorcycle performance and reliability and is pleased to announce the availability of the Thrasher Kit for your 1999 to 2006 twin cam Harley®.  This kit is a Star exclusive that increases the performance of your motorcycle while maintaining the stock appearance and reliability.

The Star Racing Thrasher Kit has been designed to work with the stock clutches, starters, and all other Harley Davidson parts while maintaining ease of drivability and running on today’s pump gas.

Before and after dyno runs are performed on each bike so you may monitor the progress in performance.  This means you not only feel the power, you can see it too!

98" Thrasher Kit Dyno Sheet

95" Thrasher Kit Dyno Sheet

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