Up to 60 hp & to 3 mpg gains in your Workhorse/GM coach

UltraPower Engine
Performance Kit

UltraPower reports similar gains
for Pickups & Medium Duty Trucks

UltraPower Kit

Designed for Workhorse 8.1 liter
gas & Duramax diesel engines

• UltraPower Recalibration. Henderson’s recalibrates
  your coach’s onboard computer to increase power and fuel economy. We make over 400 parameter changes within the computer.
  By interpreting sensor inputs accurately, you manage fuel & power production better.
• Custom Tuning for Exhaust Modifications (Banks).
• Custom Calibrations for 85.5, 87, 89, 91, 93 octane and higher.
• All re-programming is VIN specific for your vehicle.
• Warranted as long as you own your vehicle.
• 100% Satisfaction Guarantee or your money back.

*Recalibration does not endanger or void engine warranties. All
programming changes are dynamometer-tested to insure they
do not violate factory-engineered limits of engine & transmission.

• “I noticed a mileage increase from 6.5 mpg to 8 mpg on a trip home with the UltraPower reprogramming. I then went on a 1000 mile trip while towing a fully loaded boat and noticed an even bigger increase in mileage. Awesome power!” — Glenn W., Salem, OR.

• Keith R., Portland, OR. says, “Absolutely fantastic, I went from 6.7 mpg to 8.2 mpg initially, now it’s 9.9 mpg. Up a steep grade at 3300 rpm it has no problem maintaining speed!” — Keith R., Portland, OR

Other UltraPower products to help
you increase power & performance

• ● Cold Air Intake. This lifetime reusable filter element produces cooler, denser air for maximum power and fuel efficiency.

On the Workhorse, we re-locate your air filter box away from the passen-
ger side wheel well. Kits also avail-
able for Gas & Diesel Pickups

1. Designed to be free flowing so your engine breathes better.
2. Stainless Steel T304 construction.
3. Improved Torque & Horsepower.
4. Life Time Warranty.

● Taylor High Performance Ignition Cables. With these cables, you use fuel more efficiently when you reduce spark plug gaps to get hotter plug intensity. This product unleashes torque, horsepower, & fuel economy you normally lose because of excessive resistance.

● Cables handle high temperatures & extreme service (up to 1,500 degrees with 102,000 volts dielectric strength).

● Designed especially to cure the Workhorse 8.1 liter from spark plug cable burning.

If you need a way to climb the hills easier and keep the “gas thief” away from your retirement money, check with us. We can help –

Henderson’s Line-Up
417 S.W. Henderson Lane
Grants Pass, OR 97527

• Phone us at: 541 479-2882
• “800″ Phone: 800-245-8309, Ext 1
• Fax us at: 541-955-6164
• Office Hours: (PST) 8 a.m. - 5 p.m. Mon-Fri; Closed Noon
  to 1 p.m. If you call after hours, we'll call you back.

• If you’re driving & unfamiliar with the area, see a map here

• E-mail us at:

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