Air and Fuel› Superchargers, Turbochargers and Components

MODE Auto Concepts

T9033 Blow-Off Valve

$342.00

SKU: gfb-respons-diverter-blow-off-valve-with-sound-adjustment-system-for-mitsubishi-subaru-t9033

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The MODE Auto Concepts T9033 is a universal blow-off valve featuring GFB's patented TMS advantage and a venting bias adjustment system. This system allows precise control over how much air vents from each of the two outlets, enabling adjustment of the blow-off sound from completely recirculated (silent) to fully atmospheric (loud), or anywhere in between.
Show original supplier description
The MODE Auto Concepts T9033 Respons TMS is a universal blow-off valve designed to offer enhanced performance and customizable sound output for turbocharged vehicles. It features GFB's patented venting bias adjustment system, allowing users to precisely control the amount of air vented to atmosphere versus recirculated. This control enables users to adjust the blow-off sound from completely silent (100% recirculate) to maximum noise (100% atmosphere), or any setting in between. Beyond sound customization, the Respons TMS offers performance benefits such as improved throttle response and faster boost recovery on gearshifts, attributed to GFB's Turbo Management System (TMS) principle. This system ensures the valve only vents when necessary and to the extent required to prevent compressor surge, unlike some factory valves that remain open longer and lead to complete boost loss. The valve's balanced piston design ensures it can hold unlimited boost pressure without being forced open. With 33mm inlet and 33mm outlet sizes, this universal valve is compatible with a wide range of Mitsubishi and Subaru applications, including specific models like the Lancer EVO series, Eclipse, WRX, and Legacy GT, among others. While the valve is universal, direct bolt-on kits are available for certain applications, ensuring a straightforward installation process.

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

BrandMODE Auto Concepts
Part Numbergfb-respons-diverter-blow-off-valve-with-sound-adjustment-system-for-mitsubishi-subaru-t9033
CategoryAir and Fuel

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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