How do I adjust the sound of the blow-off valve?

You can adjust the sound by simply twisting the adjustment ring on the valve. This allows you to change the venting bias between full recirc (silent) and full atmosphere (loud), or any setting in between.

What is TMS Technology?

TMS Technology is GFB's system that ensures rapid boost recovery after gear shifts and helps maintain optimal throttle response. It's designed to work with the valve's venting bias adjustment.

GFB 94-02 Nissan Silvia S14/S15 TMS Respons Blow Off Valve Kit

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Specifications

Brand: Go Fast Bits
Part #: T9004
UPC: 9328022000947

GFB 94-02 Nissan Silvia S14/S15 TMS Respons Blow Off Valve Kit

Name: GFB 94-02 Nissan Silvia S14/S15 TMS Respons Blow Off Valve Kit
Brand: Go Fast Bits
SKU: go-fast-bits-gfb-94-02-nissan-silvia-s14-s15-tms-respons-blow-off-valve-kit-t14-18542
Price: 320.85 USD
Availability: BackOrder

$320.85

On Backorder

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

Fits 1995-1998 Nissan 240SX. GFB TMS Respons Blow Off Valve Kit. Adjust venting bias for sound and performance.

Key Features

Fits 1995-1998 Nissan 240SX.
Features patented Venting Bias Adjustment to control sound and performance.
Infinitely adjustable venting bias from full recirc (silent) to full atmosphere (loud).
Utilizes GFB's TMS Technology for rapid boost recovery and improved throttle response.
Capable of holding boost pressures up to 100psi.
Direct fit kit for Nissan Silvia S14/S15 chassis.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Nissan 240SX 1995-1998

Product Details

If you're working on a 1995-1998 Nissan 240SX and looking to upgrade the blow-off valve (BOV), the Go Fast Bits Respons is a solid option. This kit lets you fine-tune how much air is recirculated back into the intake versus vented to the atmosphere. This means you can get the blow-off sound you want without common issues like backfiring or stalling that can happen with fixed-ratio atmospheric BOVs.

What sets the Respons apart is its patented Venting Bias Adjustment. You can infinitely adjust the valve's behavior by simply twisting the adjustment ring. This allows you to go from a completely silent, full recirc mode to a loud, full atmosphere vent, or anywhere in between. GFB's TMS Technology is also built-in, which helps ensure quick boost recovery after shifting gears and maintains good throttle response. This valve is built to handle boost pressures up to 100psi, which is more than any turbo on your 240SX is likely to produce.

This kit is designed as a direct fit for your S14/S15 chassis. Keep in mind that this part is not CARB approved and cannot be shipped to California.