Air and Fuel› Superchargers, Turbochargers and Components

Gfb

Mach 2 Recirculating Diverter Valve

$221.00

SKU: T9111

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The GFB Mach 2 T9111 is a recirculating diverter valve designed for direct bolt-on installation. It utilizes GFB’s TMS technology to improve boost response, capable of handling up to 110psi. This valve is configured for full recirculation but can be converted to full atmospheric venting with a separately sold kit.
Show original supplier description
The GFB Mach 2 T9111 is a recirculating diverter valve engineered for a simple, direct bolt-on installation, making it an essential modification for quicker boost response. This valve is capable of handling boost pressures of up to 110 psi. This kit includes all necessary accessories for installation, such as the valve itself, a hex key, mounting screws, vacuum hose, and a plumback adaptor. The Mach 2 is configured as a 100% recirculating valve, serving as a direct factory replacement for those seeking performance gains without the noise associated with atmospheric venting. The T9111 is compatible with vehicles that utilize a hose-type flange/flange mount pneumatically actuated bypass valve from the factory. For other applications or if aftermarket intercooler piping is used, it is recommended to contact GFB to confirm fitment. GFB recommends that installation be performed by a qualified automotive technician. This product is intended for racing use only, and owners are responsible for complying with local regulations regarding noise, emissions, and vehicle modifications. Incorrect use or modification of factory systems may potentially damage engine or drivetrain components.

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

BrandGfb
Part NumberT9111
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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