Air and Fuel› Superchargers, Turbochargers and Components

COBB

TD05H-20G Turbocharger

$1,470.00

SKU: E1120G-COBB

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Overview

The COBB TD05H-20G turbocharger is an upgrade designed to enhance the top-end power of your vehicle while maintaining low and mid-range response. It is capable of producing 400hp and offers excellent throttle response, making it suitable for street or track use.
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The COBB TD05H-20G turbocharger is engineered as an ideal upgrade for those seeking to increase the top-end power of their Subaru STI, without sacrificing low and mid-range response. This turbocharger is capable of producing up to 400hp while retaining excellent throttle response, making it a versatile choice for both street and track applications. Key features include a 20G compressor housing with a 68mm billet wheel and an 8cm^2 turbine housing with a 55.8mm TD05H wheel. It offers a flow rate of 640 CFM, a .57 A/R ratio, and a 1 Bar actuator. It utilizes a sleeve bearing with 360-degree thrust bearings and a modified oiling strategy for enhanced thrust capacity. The compressor specifications are an inducer of 52.5mm and an exducer of 68mm, while the turbine has an inducer of 55.8mm and an exducer of 49.2mm. This turbocharger is specifically designed for the 2008-2021 Subaru STI. It is important to note that COBB Tuning does not confirm fitment for the WRX models, and this turbo is explicitly stated as not compatible with the WRX. While it is not confirmed to fit the 4th Gen Legacy GT, it may be compatible with some modifications. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states due to having California Air Resources Board (CARB) Executive Orders D-660-14 and D-660-46.

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

BrandCOBB
Part NumberE1120G-COBB
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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