What is the purpose of changing the blow-off valve spring?

Changing the blow-off valve spring allows you to adjust the amount of boost pressure the valve can effectively hold before it starts to leak. A higher PSI spring can hold more boost, while a lower PSI spring will open at lower boost levels.

How do I know if a 12 PSI spring is right for my car?

A 12 PSI spring is suitable if your turbocharged vehicle's system is tuned to produce around 12 PSI of boost. If your boost levels are consistently higher, you may experience leaks. If they are significantly lower, the valve might not open correctly.

Does this spring come with any other hardware?

This product includes only the 12 PSI spring for the TiAL Sport QR Blow-Off Valve. Other components of the blow-off valve assembly are sold separately.

TiAL Sport Blow Off Valve Spring 12 PSI Black 004033

Name: TiAL Sport QR BOV 12 PSI Spring - Black (1.0in)
Brand: TiALSport
SKU: tialsport-tial-sport-qr-bov-12-psi-spring-black-1-0in-t14-538152
Price: 301.50 USD
Availability: BackOrder

TiAL Sport QR BOV 12 PSI Spring - Black (1.0in)

$301.50

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

TiAL Sport QR BOV 12 PSI Spring - Black (1.0in). Direct fit for TiAL Sport QR blow-off valves.

Key Features

Fits TiAL Sport QR Blow-Off Valves.
Includes one (1) 12 PSI spring.
Designed for 1.0-inch port size.
Black finish.
Allows adjustment of boost pressure holding capacity.

This part is designed to fit TiAL Sport QR Blow-Off Valves. It is not CARB approved and cannot be shipped to California.

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Product Details

This package includes the TiAL Sport QR BOV 12 PSI Spring in black, designed for a 1.0-inch port. This spring is a direct replacement part for your TiAL Sport QR blow-off valve, allowing you to adjust the boost pressure it can effectively hold.

The spring's rating dictates how much boost pressure your blow-off valve can manage before it starts to leak. A 12 PSI spring is a common choice for many turbocharged applications, offering a good balance between holding boost and releasing excess pressure safely. TiAL Sport is known for well-built components in the forced induction world, and this spring is no exception. It's made to work specifically with their QR blow-off valve design, ensuring a proper seal and function when installed.

When changing springs, it's important to match the spring's PSI rating to your engine's boost levels. If your system runs higher boost than the spring can hold, you'll experience boost leaks, which hurts performance. Conversely, a spring that's too stiff for your boost level might not open properly, potentially causing compressor surge. This 12 PSI spring is a solid option for many setups, but always confirm it aligns with your specific tuning goals.