The Go Fast Bits T9100 Mach 2 TMS Recirculating Diverter Valve is engineered for precision and performance, making it an essential upgrade for Subaru enthusiasts. Designed to replace the factory bypass valve, this unit offers a straightforward installation process—simply remove the stock valve and bolt on the Mach 2 without the need for additional adapters or modifications.
The Mach 2 diverter valve addresses common shortcomings of factory valves, which often open only above a certain pressure threshold and are not optimized for quick throttle response. The T9100 allows for venting to atmosphere when using the optional conversion kit, providing a balance of performance and sound without the risk of engine stalling.
This diverter valve is compatible with various Subaru models including the Forester (2004-2005), Impreza (1999-2000), Legacy (1998-2002), and Outback (1998-1999). Upgrade your vehicle’s performance with the Go Fast Bits T9100 Mach 2 TMS Recirculating Diverter Valve for enhanced boost control and throttle response.
Other Part Numbers:
Go Fast Bits #gfbT9100
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2004-2005 Subaru Forester |
Forester | 2004-2005 |
|
1999-2000 Subaru Impreza |
Impreza | 1999-2000 |
|
1998-2002 Subaru Legacy |
Legacy | 1998-2002 |
|
1998-1999 Subaru Outback |
Outback | 1998-1999 |

It all started with the passion of John Adrian to create something that other aftermarket parts cannot produce. Most parts he encountered are either of low quality and are made out of inferior materials.
He decided to take matters into his own hands and started designing, testing, and developing parts that would help improve the performance of his vehicle. Using his own car as a personal testbed, he created products that other enthusiasts later noticed, which has become the start of Go Fast Bits.
Your Source of Performance PartsThe company offers various performance parts such as boost controllers, blow-off valves, short shifters, pulley kits, and more. John Adrian also acts as the chief engineer of the company. Using his 35 years of experience manufacturing high-quality parts for the automotive industry that includes Original Equipment Manufacturers (OEM) parts, he was able to produce parts that meet the demands of his customers.
Quality Made ProductsAll their parts are meticulously made using the highest grade material available to ensure product durability and reliability. Each piece is manufactured to fit perfectly on the vehicle and tested to ensure optimum performance and nothing less.
Purchase Go Fast Bits Parts At Vivid RacingIf you are in the market for high-quality products that would help improve your vehicle's performance, then Go Fast Bits is a brand that you can trust. Their products are proven to deliver performance without compromising the daily drivability of your vehicle. Whether your car is used as a grocery getter or a weekend racer, Go Fast Bits has the right parts for you.
To know more about the company, visit Vivid Racing and check out their parts list that fits your specific requirement.