VW Golf MK7 / MK7.5 GTI / R / Jetta GLI / Atlas & Audi A3 / S3 / RS3 / A4 / A5 / Q5 / TT / TTS / Allroad EA888 Atmospheric Blow-Off Valve Diverter Spacer (1.8T / 2.0T / 2.5T)

Unleash the aggressive turbo "woo-woo" sound your tuned VAG turbo engine deserves with this premium atmospheric blow-off valve diverter spacer, precision CNC-machined from aircraft-grade 6061-T6 aluminium for permanent durability and a clean engine bay aesthetic. The factory diverter valve on EA888 1.8T / 2.0T and EA855 2.5T engines vents excess boost pressure internally, eliminating the audible turbo sound that performance enthusiasts crave. This atmospheric spacer features three precision-machined radial slots that vent diverter pressure to atmosphere, creating the distinctive turbo "woo-woo" / fluttering sound that signals genuine boost on every gear change and lift event. Installs between the diverter valve and turbocharger compressor housing as a direct OE-fit retrofit, requiring no permanent modifications and easily reversible if you change your mind. CNC-machined precision ensures perfect fitment with anodized finish for long-term corrosion resistance and motorsport-grade engine bay aesthetic.

Features:

• Sturdy and durable construction – aircraft-grade 6061-T6 aluminium delivers exceptional strength and outperforms factory components
• Perfect diverter valve fitment – CNC machined to high accuracy for clean, modification-free installation
• Anodized surface finish – corrosion and abrasion resistant for sustained engine bay heat exposure with a clean shiny appearance
• Three radial slots for atmospheric venting – creates the distinctive turbo "woo-woo" sound that performance enthusiasts seek
• Direct OE-fit installation – installs between factory diverter valve and turbo compressor housing without permanent modification
• Reversible modification – easily removed if you change your mind, returning the vehicle to factory configuration
• Wide cross-platform compatibility – fits the entire VAG EA888 1.8T / 2.0T platform plus the EA855 2.5T five-cylinder

Specifications:

• Condition: 100% Brand New
• Type: Atmospheric Blow-Off Valve / Diverter Valve Spacer
• Material: 6061-T6 Aircraft-Grade Aluminium
• Construction: CNC Machined
• Surface Finish: Anodized
• Sound Slots: 3 Radial Atmospheric Vent Slots
• Item Weight: 110 g
• Quantity: 1 spacer per pack
• Position: Between Diverter Valve and Turbo Compressor Housing
• Engine Compatibility: EA888 (1.8T / 2.0T) & EA855 (2.5T)
• Purpose: Performance Sound Modification / Atmospheric DV Conversion

Fitment:

Audi A3 8V:

• Audi A3 Convertible 1.8T (2014 – 2017)
• Audi A3 Convertible 2.0T (2017)
• Audi A3 Sedan 1.8T (2014 – 2017)
• Audi A3 Sedan 2.0T (2015 – 2020)
• Audi A3 Quattro Convertible 2.0T (2014 – 2019)
• Audi A3 Quattro Sedan 2.0T (2014 – 2020)

Audi A4 B9:

• Audi A4 Sedan 2.0T (2017 – 2020)
• Audi A4 Quattro Sedan 2.0T (2017 – 2023)

Audi A5 8W:

• Audi A5 Quattro Cabriolet 2.0T (2018 – 2022)
• Audi A5 Quattro Coupe 2.0T (2018 – 2022)
• Audi A5 Quattro Sportback 2.0T (2018 – 2023)

Audi Q5:

• Audi Q5 Premium 2.0T (2018 – 2023)
• Audi Q5 Premium Plus 2.0T (2018 – 2023)
• Audi Q5 Prestige 2.0T (2018 – 2023)

Audi TT 8S:

• Audi TT Quattro Base 2.0T (2014 – 2023)
• Audi TT Quattro S 2.0T (2014 – 2023)

Audi Allroad C8:

• Audi Allroad Quattro Base 2.0T (2017 – 2023)

Audi Performance Variants:

• Audi RS3 Sedan 2.5T (2017 – 2020)
• Audi S3 Sedan 2.0T (2015 – 2021)

Volkswagen Fitment:

• VW Atlas S / SE / SEL 2.0T (2018)
• VW Golf S / SE / SEL 1.8T (2015 – 2017)
• VW Golf S / SE / SEL 1.8T Gen3 (2018)
• VW Golf Alltrack S / SE / SEL 1.8T Gen3 (2017 – 2018)
• VW Golf Launch Edition 1.8T (2015)
• VW Golf Wolfsburg Edition 1.8T (2017)
• VW Golf R Base 2.0T (2015 – 2017)
• VW GTI Base 2.0T (2015 – 2021)
• VW Jetta GLI 2.0T (2019 – 2022)
• VW Jetta GLI Autobahn 2.0T (2022)

• Compatible with EA888 1.8T / 2.0T and EA855 2.5T engine variants only
• Compatible with more models beyond those listed – contact us with your specific application if not listed
• Confirm engine code and turbo configuration before ordering

Contents:

• 1x Atmospheric Diverter Valve Spacer

Benefits:

• Creates the distinctive turbo "woo-woo" sound on every gear change and lift event – the audible signature that signals genuine boost and adds dramatic character to the driving experience
• Aircraft-grade 6061-T6 aluminium construction permanently outlasts factory components – will not fail under sustained boost cycling
• CNC-machined precision ensures perfect fitment without modification – installs cleanly between factory diverter valve and turbocharger
• Anodized finish maintains the premium aluminium appearance and corrosion resistance over long-term engine bay heat exposure
• Reversible modification – easily removed if you change your mind, returning the vehicle to factory configuration
• Affordable performance modification with immediately noticeable character change – delivers genuine sound transformation at fraction of the cost of full BOV / blow-off valve conversions
• Wide cross-platform compatibility makes this versatile for VAG enthusiasts who manage multiple EA888 or EA855-equipped vehicles
• Pairs naturally with intake upgrades, downpipes, and ECU tunes for comprehensive VAG performance packages

Important Considerations:

• Sound character preference: The atmospheric spacer creates a turbo fluttering / "woo-woo" sound rather than the loud "psh" of full blow-off valves. Some drivers prefer this subtler sound, while others prefer full BOV conversions for more aggressive auditory effect
• OEM diverter valve required: This spacer works with the factory or OEM-spec replacement diverter valve – it is NOT a complete blow-off valve replacement
• No performance gain: This product is primarily a sound modification – it does not provide measurable horsepower or torque gains. Customers seeking performance gains should consider intake, downpipe, intercooler, and ECU tuning upgrades instead
• Not a full BOV: This is an atmospheric spacer that vents through the diverter valve, not a complete blow-off valve replacement. Customers seeking the loud aggressive "psh" sound should consider full atmospheric BOV systems instead

Installation Notes:

• Engine compatibility verification required: Confirm your engine is one of the listed EA888 1.8T / 2.0T or EA855 2.5T variants before ordering
• Allow the engine to fully cool before beginning installation to avoid burns from hot turbocharger components
• Locate the diverter valve on the turbocharger compressor housing – consult vehicle service documentation for exact location on your specific application
• Carefully remove the factory diverter valve from the turbocharger compressor housing – note original orientation and any retaining hardware during removal
• Inspect the diverter valve and surrounding components during installation – worn or aged diverter valves should be replaced before installing the spacer
• Position the new spacer between the diverter valve and turbo compressor housing with proper orientation
• Verify the radial atmospheric slots are positioned to vent properly – consult included instructions for correct slot orientation
• Tighten all mounting hardware to factory torque specifications using a calibrated torque wrench – do not overtighten, which can damage the aluminium spacer
• Verify proper diverter valve operation after installation – check for vacuum leaks and confirm proper boost building
• Test for any boost leaks using a smoke test or pressure test method to verify leak-free operation before driving
• Take a brief test drive at moderate throttle to verify the new sound character and proper vehicle operation before aggressive driving
• Professional installation recommended if you are unfamiliar with VAG turbocharger system service procedures
• If unsure about compatibility with your specific VW or Audi variant, contact our team with your year, model, and engine code before ordering

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues