• APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles
  • APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles
  • APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles
  • APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles
  • APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles
  • APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles
  • APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles

APR TTE420 Turbo ECU Upgrade for K04 equipped 2.0T vehicles

£749.17
£749.17
Shipping calculated at checkout.

APR’s TTE420 Turbocharger ECU Upgrade is designed for use with the The Turbo Engineer's TTE420 turbocharger and produces an asphalt-shredding 400 HP on 93 octane fuel, and up to 442 HP using race fuel! 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 mastered the Bosch MED9 engine management system to work seamlessly with the upgraded TTE420 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 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.

APR Calibration Report
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.
- 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 MK6 Golf R in FWD mode with TTE420 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 220 - 272 HP 243 - 258 FT-LBS    
Stock As Measured by APR 93 AKI 98 RON 271 HP 260 FT-LBS    
APR TTE420 Turbocharger ECU Upgrade 91 AKI 95 RON 329 HP 401 FT-LBS +131 HP @ 5,300 RPM +141 FT-LBS @ 3,900 RPM
APR TTE420 Turbocharger ECU Upgrade 93 AKI 98 RON 400 HP 413 FT-LBS +144 HP @ 5,250 RPM +152 FT-LBS @ 3,900 RPM
APR TTE420 Turbocharger ECU Upgrade 100 AKI 104 RON 419 HP 431 FT-LBS +166 HP @ 5,250 RPM +171 FT-LBS @ 4,950 RPM
APR TTE420 Turbocharger ECU Upgrade 104 AKI 108 RON 442 HP 449 FT-LBS +188 HP @ 5,350 RPM +190 FT-LBS @ 5,000 RPM
Application Guide
Vehicle Engine Transmission
Audi A1 2.0 TFSI All
Audi S3 (MKII) 2.0 TFSI All
Audi TTS (MKII) 2.0 TFSI All
KTM X-Bow 2.0T All
Seat Leon Cupra / Cupra R / Supercopa (MKII) 2.0T FSI All
Volkswagen Golf R / ED30 / ED35 / Pirelli 2.0T FSI All
Volkswagen Polo R WRC 2.0T FSI All
Volkswagen Scirocco R 2.0T FSI All

Please note: This listing is for the software ONLY, an APR TTE420 turbocharger must be purchased seperately here. All power figures are produced from APR, LLC marketing materials. Depending on your vehicle condition, fuel (AKI), & environmental factors the results may vary. 

What are the delivery methods and charges for UK, Europe and Rest of World (ROW)?


Regal Autosport uses a variety of shipping services to give the best combination of value, service and speed to our customers. This will vary on location, value of the time and size to name a few.


Regal Autosport may drop-ship directly from the manufacturer to the customer if the product is a non-stock item and this provides the best value and service. If this is the case, the delivery method may be different.


Shipping is calculated automatically at the checkout, depending on your location and the products ordered. On occasion, the shipping price may be incorrect due to your location or the product being oversized in dimension or weight. Whilst we try to be as accurate as possible with our shipping prices, from time to time they might be inaccurate. We will not know until we process your order if this is the case, we will contact you if this is the case and provide you with the option of cancelling or payment of the difference.


Due to the value of the products sold we only deliver to the verified address of any payment method OR any address if paid for by bank transfer. Thanks to scammers, we simply do not take the risk and any order which does not have a verified address will be cancelled.


Any customer with an order which has been damaged in transit must notify Regal Autosport immediately and within 14 calendar days of shipping. If this is not done, the shipping insurance cannot be used, and you will not be compensated. 


United Kingdom Mainland


Within the United Kingdom Mainland, we use DPD Local. This service is a next working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day. A working day is Monday - Friday only.


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day.


United Kingdom Non-Mainland 

Within the United Kingdom Non-Mainland, we use DPD Local. This service is a next working day or 2 working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day or the second working day. A working day is Monday - Friday only. 


Europe 

For Europe, we use DHL. Your delivery location will determine the transit time. Orders in-stock and placed before 2PM will ship the same working day. A working day is Monday - Friday only. 


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day. 


Rest of World (ROW) & Oversize 


For ROW and oversize items, we typically use DHL Express. Your delivery location will determine the transit time. Orders in-stock and placed before 2 PM will ship the same working day. A working day is Monday - Friday only. 


Tracking is manually sent to your email address once your order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


Please note: The above is a general guide to how we plan to ship your order. From time to time this may change and we may decide to ship with other couriers.