Performance E-PROMs (Chips)

The heart of all AutoThority upgrades, the APE Performance E-PROM is designed to optimize engine performance at all points along the operating range. Our software represents the most sophisticated performance enhancement available and also the best value currently offered anywhere. Nothing we sell hasn't been tried and tested on our own cars before we decided to offer it to you.  You can be assured that when you buy a product from AutoThority, you are getting something we have personally approved to be sold in our facility.  By assuming an octane rating of 92 and a factory recommended state of tune, we are able to increase not only its power and torque, but its overall drive-ability as well. One APE E-PROM will change the entire feel of the car. From the smooth transitions off idle to the higher performance available at full-throttle, the entire driving experience is enhanced.

Features

Full-Range Programming: The only truly full-range programming in the industry, AutoThority provides refinement and drive-ability second to none. Your car feels smoother, quicker, and more exciting under all conditions.

‘Soft’ Rev-limiter: AutoThority typically raises the factory rev-limiter slightly to extend the engine’s operating range. Mainly intended for track and auto-cross use, as a way to ‘hold a gear’ during a curve, etc. our exclusive ‘soft’ rev-limiter offers better feel than stock and is much healthier for the engine.

Top speed limiter: AutoThority can remove the factory set artificially low top speed governor for vehicles riding on upgraded high speed tires.

Custom Programming: AutoThority maintains an extensive database of Custom Performance E-PROMs designed specifically for popular engine modifications. Because our standard E-PROMs are mapped precisely for stock vehicles, they may not be best for engines that have been modified. Even something as common as an exhaust system or air intake can dramatically alter the engine characteristics of some vehicles. Each of the Custom E-PROMs, that we offer, has been tuned on our dynamometer, to properly optimize for specific modifications or combinations of modifications.

Technical Support: Our experts are just a phone call away, and can offer complete technical support on all of our products. Whether you are a new customer, or a longtime AutoThority client, you will receive straight answers to your questions

Guarantee / Warranty: Our supreme confidence in this product is backed by an unconditional, 30-Day, money-back guarantee. Meant to offer you complete peace of mind, it can also be used to compare us back to back with any of our competitors.
E-Prom Re-mapping

We are often asked why our E-Proms out perform the factory's and additionally why they out perform our competition. A Bosch Motronic E-Prom contains ignition timing and fuel injection metering information located on two three-dimensional maps. The factory has to tune for the lowest common denominators of these two factors and therefore leaves a certain amount of room for improvement. By assuming a high grade of fuel (92 octane minimum) and a good state of tune, we are able to modify these maps to optimize power and torque as well as throttle response and overall drivability. We distinguish ourselves from our competition through our exclusive Graphics Tuning Software package which allows us to retune the entire operating range of the engine. The full throttle map reflects the engine's tuning when "the pedal is to the metal". It is the place every tuner modifies and the place where we spend the least amount of time. The part throttle realm on the other hand, is the place where you spend the vast majority of your driving and is where we concentrate the most time and effort to re-map. The idle mapping we leave alone so that tune-up and maintenance remain identical to stock.

Comments & Reviews

"This is a performance boost that you can feel every day of your driving life. It translates to much more throttle response in everyday traffic maneuvers and for highway overtaking - less time in the 'danger' zone."
- Australian Road and Track

"(The A.P.E. Chip) was good enough that we knew right away how well it worked. The engine ran 'like a freight train', offering solid performance along with well behaved idle and mid-range running. There is no arguing; this is a Chip that really works."
- European Car

"The engine's smooth idle... and overall ease of driving speak volumes about the refinement of AutoThority's work. You really don't sense that this 850i has been tweaked until you dip your foot into the throttle and feel the healthy thrust."
- Road and Track

"Dear Autothority, I have had the Autothority Passat 1.8T computer modification in my car for 2 weeks now. I must say I am very impressed, and it must be considered as a very worthwhile change for all Passat owners. The car runs smoother and retains the worthy wide powerband aspects of the original engine electronics. The performance is definitely there, with good low end pick-up and at 4000rpm it puts you back in the seat, hard! Plus, the unusual gearing on the original vehicle, (1st and 2nd) is much less noticeable now. It turns a very good car into an excellent and fun vehicle. Well done, and please keep me informed of any new changes that you may offer for this vehicle. Sincerely, "
- Autothority Customer

" The engine was not only able to pull noticeably more in all ranges, but the problem of being slow to rev below 5000 RPM seemed to be solved. Breaking the rear tires loose, which before took either a near-redline first gear or wet roads, was easily accomplished with second gear and dry pavement."
- der Porsche Sprecher

ECU Description: Improved torque and throttle response, and just more horsepower for your every day drive.

ECU Description: Improved torque and throttle response, and just more horsepower for your every day drive.

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