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Air and Fuel› Superchargers, Turbochargers and Components

Tomei

Vented Blow-Off Valve Adapter

$190.00 $171.00 Save $19.00

SKU: TB301A-SB01B

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

Easy — 1–2 hours

Overview

It features a larger inner diameter than stock and includes adapters for GDB, GRB, and GDF fitment, along with necessary clamps and hardware.
Show original supplier description
Its multi-layered, reinforced silicone construction prevents deformation under high pressure, ensuring increased durability and reliability. This hose boasts a larger inner diameter compared to the stock unit, which directly contributes to improved throttle response and potential power gains. This inlet hose is designed for direct fitment on various Subaru models, including the 2002-2007 Impreza WRX, 2004-2021 STi, and 2004-2008 Forester XT, specifically for EJ25 and EJ20 turbo engines. It comes complete with adapters to fit GDB, GRB, and GDF chassis, as well as all necessary clamps and hardware for installation. Installation is straightforward for those familiar with the process. Some users have noted that removing the bypass valve and PCV aluminum inserts can facilitate fitting the hose through tight spaces, such as under the intake manifold, with reassembly being manageable. The product has received overwhelmingly positive feedback, with many users highlighting its perfect fit, ease of installation, and contribution to a smoother-feeling engine and elimination of potential air leaks from plastic 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

BrandTomei
Part NumberTB301A-SB01B
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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