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FAQ's

How do Cat Systems work?
Will these harnesses effect the longevity or reliability of my engine?
How do Cummins Systems work?
Will this effect my engine warranty?
How hard is it to install?
What are the exact gains?
What Models are supported?
Will my engine run differently?


QUESTION: How do CAT Systems work? ANSWER: There is a fuel temp harness that you plug in between your fuel temp sensor and your wiring. That will advance the timing on your engine. The scond harness plugs into your boost pressure sensor and alters the fuel rate to the motor. You can have that fixed or adjustable.

QUESTION: Will these harnesses effect the longevity or reliability of my engine? ANSWER: No. We have never experienced an ill effect by running these harnesses on any motor. The factory has maximum parameters already programmed into your ECM on your engine. All we do is go to those max parameters. We cannot make it go past those. Your engine is still within the maximum allowable specs of your engine set by your factory.

QUESTION: How do Cummins Systems work? ANSWER: One Harness will plug in between your factory fuel pressure sensor and your factory wiring. By plugging into the fuel pressure sensor we're able to alter the sensor to the ECM, increasing the rail pressure from 20,000 psi to apx 22,000 psi, giving it a 10% increase in pressure. The second function is where the biggest part of the gain comes from. We adjust the engines injection pulse width, changing timing essentially. This increases horsepower, torque and fuel efficiency without causing any damage toyour motor.

QUESTION: Will this effect my engine warranty? ANSWER: No. We are an ADD-ON after market product. To date after 15 years of service, we have not had a single warranty issue. If you do not want/like the product, just remove it and it leaves no trace or footprint on the engine or in the ECM.

QUESTION: How hard is it to install? ANSWER: With every harness order you get detailed instructions sent along with a wiring diagram of your engine. The fixed harness typically takes 5 minutes. The adjustable harness could take up to an hour.

QUESTION: What are the exact gains? ANSWER: CAT Engines vary alot within and out of models. Typically the single turbo cab gain about 75 horse power 150 ft lbs of torque. Twin Turbo Acers gain about 80 HP and 200 ft lbs of torque. For fuel, single turbo's gain about .75 to 1 mpg. The Twin Turbo's gain about 1 to 1.25 MPG.

QUESTION: What Models are supported? ANSWER: Our CAT Power harness fit a wide range of engines. Typically from 1994 to 2008. They will fit your 3406E C12, C13, C15, C16 Engine. If you have any questions about your engine or if it isn't one of those, call us. We'll tell you if your engine will be compatable.

QUESTION: Will my engine run differently? ANSWER: Yes it will. There will be no more turbo lag, virtually eliminated and your throttle response will be quick and crisp.