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GTS
VW MK4 2.0 8v DBW Stage 1/2/3 Tune (AVH/AZG/BEV/BBW/BGD)
9 reviews
USD $299.99
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GTS calibrations are developed for vehicles with all factory emissions equipment intact and functional. Features that remove or raise factory speed and rev limits are intended for closed-course use only. These calibrations are not CARB-certified, and the customer is responsible for compliance with all applicable laws, including the emissions and inspection requirements of their jurisdiction.
The GTS difference: a real tune built for your exact car, not one calibration with three names on a dropdown. We’ve got the injectors and turbo kits to back it up, and the in-house support to actually run it. Tuning VW, Audi & Porsche since 2010.
Why we're different ›
STAGE 1: 5 TO 10 WHP, NO PARTS
STAGE 2: 10 TO 13 WHP WITH AN EXHAUST
STAGE 3: TURBO OR SUPERCHARGER, CUSTOM CALIBRATION
Fits
VW MK4 Golf and Jetta and the New Beetle 2.0 8v with drive-by-wire throttle, engine codes AVH, AZG, BEV, BBW and BGD on Bosch ME7.5 and ME7.1.1. Pick your stage in the dropdown. The calibration is written for your engine code and your hardware. Not sure which code you have? Find your engine code in two minutes.
Not sure if you have drive-by-wire? Look for a throttle cable running to the intake manifold. No cable means drive-by-wire, and this is your listing. A cable means the earlier AEG, which has its own listing.
What the tune does
Written for 91 or 93 octane pump gas. The first thing you feel is the throttle. The factory drive-by-wire map is deliberately lazy, and the calibration takes that out: the car answers the pedal instead of thinking about it. Ignition timing is set for your fuel, the rev limiter is raised, the speed limiter is removed, and mileage improves when you are not in it. 2-step launch control and no-lift shift are available. Tested on the street and the track to be smooth yet powerful. The 2.0 8v is not a hero engine, and the tune does not pretend it is. It fixes the lazy factory feel and makes the car pull harder where you actually drive it.
Stages on this listing
| Stage | Needs | Gain | Price |
|---|---|---|---|
| Stage 1 | stock car, no parts | 5 to 10 whp | $299.99 |
| Stage 2 | an exhaust upgrade. The calibration is built around the extra airflow, so do not run it on a stock exhaust | 10 to 13 whp | $299.99 |
| Stage 2 Custom | cams, 100 octane, high compression, a stroker, or any naturally aspirated combination outside the normal recipe | custom | add $100 |
| Stage 3 | turbo or supercharger, with injectors to match. Neuspeed supercharger calibrations are ready to go | custom | add $150 |
Stage 1 is the easy win. Stage 2 is the sweet spot. Stage 2 Custom is for serious naturally aspirated builds, and Stage 3 is for the people willing to deal with boost. Read the 2.0L 8v Tuning Guide for the long version.
What you need on the car
- Stage 1: nothing. Stage 1 runs on a completely stock car.
- Stage 2: an exhaust upgrade. The engine breathes a little better and the calibration is written for it.
- Stage 2 Custom: cams, 100 octane, high compression, a stroker, or any naturally aspirated combination that a generic calibration does not fit. Once the combination is outside the usual recipe the calibration has to match the actual hardware, or you leave power on the table. Tell us what is on the car in the order comments.
- Stage 3: a turbo or a supercharger, and injectors sized for it: 316cc (AWP), 386cc (TT 225), 440cc or 550cc depending on the combination. Neuspeed supercharger calibrations are ready off the shelf. Once boost enters the picture the calibration is one piece of it. Fueling, hardware and airflow matter a lot more than on a bolt-on car, so talk to us before you buy parts.
After you order
- Order. Pick your stage, then choose Remote Tuning. A GTS cable ships with your order for a one-time $40 and it is yours to keep for every tune after this one. Already have one? Choose "I already have a GTS Remote Tuning cable".
- Read. Plug the cable into the OBD port and a Windows laptop, Windows 10 or later. An Intel Mac on Boot Camp works too. Our software identifies your ECU and saves your original calibration before anything is written.
- Flash. We build the calibration for your car, your hardware and your fuel. You get a message the moment it is ready, and you flash it yourself in your driveway in about ten minutes.
- Log. Drive, log, send. If anything wants adjusting we adjust it and you flash again. Stage 2 Custom and Stage 3 usually take a revision or two to dial in for the exact hardware. Revisions usually come back the same day, and within 72 hours at the outside.
Prefer to mail the ECU in? Mail-in is free within the USA and Canada. We flash it on the bench and send it back in one to three days. Local? An OBD flash at the shop takes 10 to 15 minutes. How remote tuning works, start to finish.
Options explained
- Stage: pick from the table above. Stage 1 for a stock car, Stage 2 once the exhaust is on, Stage 2 Custom for cams and other naturally aspirated builds, Stage 3 for a turbo or supercharger.
- Launch control: Soft (no pops) is included free. Hard 2-step / antilag is an add-on, for off-road and competition use. Pick None if you do not want it.
- No-lift shift: available, and included free with every GTS tune.
- IMMO defeat: removes the immobilizer check so a swapped or spare ECU runs without the key and cluster handshake.
- Mail or Remote: remote is what most owners pick. Mail-in if you would rather not touch a laptop. Own cable if you have tuned with us before.
Why GTS
Tuning since 2010, as Gonzo Tuning first and as GTS since 2013. Every calibration is written in house and the flashing tool is ours, not a rebadged package, and we never ask for remote access to your computer. Your original calibration is kept, so the car can go back to stock whenever you want it to. Reflashes carry a one-year warranty, and if you are not happy within 30 days you can go back to stock for a refund under our return policy. Support in English and Spanish.
Ordering from Canada or overseas
Canadian owners have ordered from us since 2014 and Canada is our second-largest market. The tune is delivered digitally, the cable is delivered within Canada with no customs and no import fees, we accept Canadian cards, and return shipping on a mail-in ECU is free. Anywhere else in the world, remote tuning needs the car, the cable and an internet connection, nothing else. We have tuned cars in Australia, Germany, the United Kingdom, the Netherlands, New Zealand, Hungary, Puerto Rico, Panama, Costa Rica and Barbados.