Mk6.5 2015 - 2018 Jetta 1.8t Stage 1
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Mk6.5 2015 - 2018 Jetta 1.8t Stage 1

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Width:
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Height:
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Depth:
7.00 (in)
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Description

Volkswagen Jetta 1.8T Stage 1 Plug-and-Play ECU Tune — by Boost Dynamic Tuning

Our Stage 1 calibration delivers the OEM+ experience you’ve been wanting—quicker response, stronger mid-range, and smooth, confident power you can daily. Remote flashing makes install simple and stress-free whether you’re at home or on the go.

Commute all week. Launch on weekends. Same car, new attitude.

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BDT Stage 1 — Feature Highlights

  • Increased horsepower & torque across the rev range
  • Speed limiter removed
  • Neutral/Park rev limiter raised 
  • Torque limiters recalibrated for consistent pull
  • Driver-requested fueling optimized by throttle position
  • Overrun/Crackle available (in applicable drive modes)
  • Boost control refined for linear, predictable delivery
  • Turbocharger lag reduced for faster response
  • Low- and high-pressure fuel targets optimized
  • OBDII port flashing (convenient remote tune workflow)

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Jetta 1.8T — Stage 1 Calibration

Up to 242 HP & 293 TQ (93 octane) with OEM-like drivability. Our strategy safely maximizes the factory turbocharger while maintaining smooth, factory-grade manners in traffic and at cruise.

Crackle (Overrun)

On lift-off from higher RPM or free-rev in Neutral/Park, overrun calibration can add a subtle crackle character. Note: with a stock exhaust this is intentionally restrained; aftermarket systems make it more pronounced. 

 

Low

Medium

High/Flames

 

Refined Boost Control

Factory boost delivery can feel uneven during long pulls. BDT’s Stage 1 mapping smooths the curve for crisp, repeatable acceleration through the entire powerband—OEM polish, enthusiast performance.

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Power Gains

Stage Horsepower Torque
Stock — VW Advertised 191 HP 203 FT-LBS
Stock — BDT Dyno 190 HP 200 FT-LBS
Stage 1 — 93 Octane 242 HP 293 FT-LBS

ECU Tune — Modification Requirements

Part / Upgrade Required Not required
TCU Tune   X
Air Intake   X
Intercooler   X
Drivetrain Insert Upgrades   X
Downpipe   Not Compatible

Software Installation Requirements

Device Ports OS Processor Power RAM
Laptop or Tablet Wi-Fi & USB Windows 7 or newer 32- or 64-bit 1.0 GHz or greater 4 GB or greater

Appointment Policy: If you schedule an in-person flash and arrive late without contacting us, a $50 late fee applies. Need to reschedule? Please notify us at least one hour in advance to avoid the fee.

✅ Vehicle Fitment & Keywords

Compatible with Volkswagen Jetta 1.8T (applicable model years and trims using the 1.8-liter turbo). Common search terms: Jetta 1.8T tune, Stage 1 tune, ECU flash, VW performance software, Boost Dynamic Tuning.

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.

Federal and State Emissions Compliance

  • May modify, bypass, defeat, or render inoperative one or more emissions control devices (e.g., catalytic converters, oxygen sensors, EGR, OBD systems).
  • Installation or use on emissions-regulated vehicles is strictly prohibited by federal law and may result in civil or criminal penalties, including fines up to $45,000 per vehicle.
  • Not certified by the EPA or CARB; not legal for sale or use in California or states that follow CARB standards.

Assumption of Risk & Waiver of Liability

  • You assume all risk and responsibility for compliance with applicable laws.
  • You waive all claims against Boost Dynamic Tuning, LLC and its affiliates arising from unlawful use.
  • You release Boost Dynamic Tuning, LLC from damages, injuries, or penalties resulting from improper use.

⚖️ Indemnification Clause

  • Use inconsistent with this disclaimer
  • Misrepresentation of vehicle use
  • Violation of emissions laws

Final Notice

Sold “as is” and “with all faults”, with no warranties regarding legality for highway use or emissions compliance. The end-user is solely responsible for determining legality for their application. Boost Dynamic Tuning, LLC does not condone 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: Motorsport/racing products are not designed to meet emissions standards. Not CARB-compliant. Not legal for sale or use in California or other restricted states.