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Air and Fuel› Superchargers, Turbochargers and Components
TiAL
TiAL Sport Q BOV 12 PSI Spring - Black
SKU: T00D 004028
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: 004028
Vehicle Symptoms
- Turbo flutter or surge on throttle lift
- Slow turbo spool or lag
- Boost pressure spikes or erratic boost
- Loss of power under heavy acceleration
- Audible hissing or whistling from intake
Diagnostic Codes
- P0234 – Engine Overboost Condition
Relevant Conversations
- flutter sound when letting off throttle
- Turbo surge at high boost
- TiAL Q BOV vs HKS SSQV
- replacing stock blow off valve upgrade
- boost spike after installing bigger turbo
- P0234 overboost fix
- 50mm blow off valve for 1800hp build
- TiAL Q BOV installation guide
- losing boost pressure under WOT
- surge valve vs blow off valve for WRX
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | TiAL |
| Part Number | T00D 004028 |
Videos
Tial Q Blow Off Valve Install
Tial Q BOV for 2012 Supercharged Mustang
N54 BOV's: Tial vs HKS
TiAL Q 50mm BoV on 11 psi springs
Tial Q BOV in action
Tial Q Blow Off Valve- Whats in the Box?
TiAL BOV Install and Test!
N54 VRSF Charge Pipe with Tial Q BOV DIY Install
Tial Q bov #240sx KA-T free rev
Focus RS cp-e Blow Off Valve Kit Exhale With Black Tial Q Blow Off Valve 2016-2018 Installation
Tial BOV on CUMMINS
Tial BOV Sounds | Stock VS 50mm VS Q | 2004 Subaru STI
SMY Dual Gauge Pod and Tial BOV (Blow Off Valve) Speed Density Install by WRXperts (Subaru WRX STI)
How To Change Tial QR Bov Spring In the Evo X
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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