2006 - 2008.5 GTI Jetta GLI Golf 2.0T FSI Stage 1 (Plug and Play ECU)

2006–2008 VW GTI / Jetta GLI 2.0T Stage 1 Plug & Play ECU Tune — by Boost Dynamic Tuning

Stop sleeping on your MK5. It’s time to wake it up.

This isn’t some generic flash — you’re unlocking real street power, tuned by enthusiasts for enthusiasts. Whether you’re cruising your hometown or lining it up for the next red light showdown, this Stage 1 ECU tune hits hard from the moment you step in it.

BDT’s custom Stage 1 ECU calibration is designed to bring your 2.0T to life. Expect instant throttle response, smoother boost, way more punch, and head-turning crackles & pops that sound absolutely wild.

WHAT YOU GET — Stage 1 Tune Features

• Up to 237 WHP / 289 WTQ — real dyno-proven gains
• Harder-hitting throttle, faster boost response
• Custom Crackle & Pop Map (Low / Medium / Flame Mode)
• Award-Winning 2-Step Launch Control
• Speed Limiter Removed
• Raised Neutral/Rev Limiter (4K → 6K)
• No-Lift Shift (Manual only)
• Refined Boost Control = Less lag, more pull
• Fueling & Timing optimized for torque
• Immobilizer Off — guaranteed start with new ECU

⚡ Why Stage 1?

This tune completely transforms how the MK5 GTI or GLI feels. It’s not just about numbers — it’s about response, confidence, and attitude. From rolling up to a meet to ripping through tunnels, this Stage 1 file makes sure people notice. And when the 2-step hits? Instant chaos.

Crackle Pops / Overrun

Let it snap, crackle, and BANG! Our overrun map ignites your exhaust with aggressive pops every time you lift off throttle. Stock exhaust? Subtle but addicting. Downpipe or full system? Straight firecracker chaos.

ECU Removal Instructions

POWER GAINS

ECU TUNE MODIFICATION REQUIREMENTS

PLEASE NOTE: If you have an Upgraded Turbo installed, you are NOT eligible for Stage 2 Tune. You must purchase our Stage 3 Tune.  This includes a k04 turbo!

EMISSIONS COMPLIANCE NOTICE & LEGAL DISCLAIMER

FOR COMPETITION USE ONLY — NOT FOR STREET USE

This product is sold and intended solely for vehicles used in closed-course racing, off-road competition, or organized motorsport events. It is not legal for use on any pollution-controlled vehicle operated on public roads or highways, as defined under the Clean Air Act (42 U.S.C. § 7522) and applicable state emissions laws.

By purchasing, installing, or using this product, you explicitly acknowledge and agree to the following terms:

Federal and State Emissions Compliance

• This product may modify, bypass, defeat, or render inoperative one or more emissions control devices, including but not limited to: catalytic converters, oxygen sensors, EGR systems, or OBD monitoring systems.
• The installation or use of this product on any vehicle subject to emissions regulations is strictly prohibited by federal law and may result in civil or criminal penalties, including fines up to $45,000 per vehicle under the Clean Air Act.
• This product is not certified by the Environmental Protection Agency (EPA) or the California Air Resources Board (CARB), and is therefore not legal for sale or use in California or any state that follows CARB standards.

Assumption of Risk and Waiver of Liability

By purchasing and/or installing this product, you agree to:

1. Assume all risk and responsibility for compliance with applicable local, state, and federal laws and regulations.
2. Waive all claims, liabilities, and legal actions against Boost Dynamic Tuning, LLC, its officers, directors, employees, and affiliates arising from the purchase, installation, or use of this product in violation of any applicable law.
3. Release Boost Dynamic Tuning, LLC from any and all damages, injuries, or penalties resulting from improper or unlawful use.

⚖️ Indemnification Clause

You further agree to indemnify, defend, and hold harmless Boost Dynamic Tuning, LLC from any fines, penalties, damages, losses, or legal fees resulting from:

• Use of this product in a manner inconsistent with this disclaimer
• Misrepresentation of vehicle use
• Violation of any emissions laws or regulations

Final Notice

This product is sold “as is” and “with all faults”, with no warranties, expressed or implied, regarding legality for public highway use or emissions compliance.

It is the sole responsibility of the end-user to determine the legality of this product for the intended application. Boost Dynamic Tuning, LLC does not condone or recommend illegal street use or emissions equipment tampering.

By completing your purchase, you acknowledge that you have read, understood, and agreed to this disclaimer in full.

DOWNPIPE NOTICE: BY PURCHASING A MOTORSPORT/RACING PRODUCT ("PRODUCT"), YOU REPRESENT THAT YOU UNDERSTAND AND AGREE THAT: THE PRODUCT IS NOT DESIGNED TO MEET ANY APPLICABLE EMISSIONS STANDARDS, WHETHER IN THE USA OR OTHERWISE, THE PRODUCT IS NOT C.A.R.B. COMPLIANT, AND THAT THE PRODUCT IS NOT FOR SALE OR USE IN CALIFORNIA, USA NOR ANY OTHER JURISDICTION WHERE THE SALE OR USE IS PROHIBITED BY LAW. BOOST DYNAMIC TUNING, LLC MAKES NO REPRESENTATIONS, WARRANTIES, OR CLAIMS THAT THIS PRODUCT COMPLIES WITH ANY APPLICABLE EMISSIONS LAWS AND EXPRESSLY DISCLAIMS ANY AND ALL SUCH REPRESENTATIONS, WARRANTIES, AND CLAIMS, WHETHER EXPRESS OR IMPLIED. BY PURCHASING THIS PRODUCT, YOU REPRESENT, WARRANT, AND AGREE THAT IT IS YOUR RESPONSIBILITY TO INFORM YOURSELF OF ANY LAWS OR REGULATIONS THAT MAY APPLY TO YOUR PURCHASE AND/OR USE OF THE PRODUCT.