APR IS38 Software Upgrade
APR is pleased to present the OEM Golf R/S3 IS38 Turbocharger ECU upgrade for GTI/A3 platform vehicles!
APR’s IS38 Turbocharger ECU Upgrade is designed for use with the factory Golf R / S3 turbo on GTI/A3 platform vehicles and produces an asphalt-shredding 386 HP on 93 octane fuel, and over 400 HP using APR’s upcoming Ethanol Flex Fueling upgrades! It's even compatible with the factory downpipe exhaust system, at lower output levels. Expect lightning fast response coupled with smooth daily driving and a much broader power band that pulls all the way to redline!
Using multiple vehicles across the world and in house, APR’s team of Calibration and Electrical Engineers spent the better part of a year mastering the factory Simos 18 engine management system to work seamlessly with the upgraded IS38 turbocharger unit. All critical aspects of the vehicle’s platform were taken into consideration and monitored through APR’s proprietary engine management logging tools to levels often not seen elsewhere in this industry. Through proper mapping, the ECU fully understands the hardware changes and operates correctly. As such torque delivery is smooth and flat, avoiding compressor surge, limitations in the factory fueling system, and limiting stress on the factory transmission. Cam phasing and valve lift operations are optimized, aiding in turbocharger spool, while allowing the engine to breathe more efficiently at higher engine speeds. Under various operational modes, lambda, ignition advance, requested torque, boost pressure levels and more were painstakingly optimized to produce maximum power without resorting to risky calibration shortcuts.
| Stage | NAR Fuel | ROW Fuel | Max HP | Max TQ | Max HP Gain Over Stock | Max TQ Gain Over Stock |
|---|---|---|---|---|---|---|
| - APR recommends and tuned with Sunoco GT 260 for 100 AKI mode and Sunoco GT 260 Plus for 104 AKI mode. Never use lower octane than specified by the mode. | ||||||
| - Ethanol software REQUIRES APR’s upcoming Ethanol Flex Fueling upgrades. | ||||||
| - Max increases are based on APR's actual measured stock values and not those reported by VAG. | RON = ROW Fuel Grades | AKI = NAR North American (RON+MON)/2 Fuel Grades. | ||||||
| - Reported wheel figures measured using APR's in-house Dynapack Dynamometer with a US Spec MK7 GTI with factory IS38 turbocharger, APR Cast Downpipe, APR Intake System and APR Intercooler, using SAEJ1349 correction and an average of multiple runs. Crank figures are estimated based on the measured wheel figures. Results may vary depending upon environmental conditions, vehicle, transmission, vehicle health, operating conditions, temperatures, fuel grade, dyno type, dyno setup, other variables and other modifications. | ||||||
| Stock As Reported by VAG | 91 AKI | 95 RON | 210-230 HP | 258 FT-LBS | ||
| Stock As Measured by APR | 93 AKI | 98 RON | 235 HP | 270 FT-LBS | ||
| APR IS38 Turbo - OEM Downpipe | 91 AKI | 95 RON | 345 HP | 359 FT-LBS | +114 HP @ 6,200 RPM | +105 FT-LBS @ 4,150 RPM |
| APR IS38 Turbo - OEM Downpipe | 93 AKI | 98 RON | 363 HP | 376 FT-LBS | +131 HP @ 6,000 RPM | +123 FT-LBS @ 4,100 RPM |
| APR IS38 Turbo - APR Downpipe | 91 AKI | 95 RON | 382 HP | 370 FT-LBS | +140 HP @ 6,100 RPM | +129 FT-LBS @ 6,200 RPM |
| APR IS38 Turbo - APR Downpipe | 93 AKI | 98 RON | 386 HP | 403 FT-LBS | +153 HP @ 5,600 RPM | +148 FT-LBS @ 4,100 RPM |
APR’s IS38 Turbocharger ECU Upgrade is sold as software only. The factory turbocharger necessary for this upgrade is conveniently available at various APR dealers and VW, Audi and Seat dealerships across the world.
30 Day Money Back Guarantee
All APR ECU Upgrades include a 30-day money back guarantee with no questions asked. If for any reason the owners is dissatisfied with the APR ECU Upgrade, they may return to the place of purchase for a full refund, provided they are within the 30 day period from the time of the initial purchase. **Refund is on ECU Software only, there is a labour fee applied to flash the vehicle back to factory
IMPORTANT PRICING AND AVAILABILITY DETAILS: Availability and ECU Compatibility: Stages, programs, and features may not be available for all ECUs.- ECU Revision Notice: Multiple ECU revisions exist for each platform. APR software may be temporarily unavailable when factory updates are applied. An APR dealer can check availability in person, or over the phone if the ECU boxcode/revision is known.
