Exhaust› Exhaust Pipes, Systems and Components

Tomei

3-Inch Cat-Back Exhaust System

$6.30

SKU: TC103B-01

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 Tomei TC103B-01 is a performance exhaust system designed to enhance driving pleasure. Its 3-inch pipe and inlet diameter are optimized for performance tuning.
Show original supplier description
The Tomei TC103B-01 exhaust system is a premium choice for automotive enthusiasts seeking to elevate their vehicle's performance and auditory experience. Engineered by Tomei, a company with a legacy dating back to 1968, this exhaust system is built to enhance driving pleasure. Constructed from durable stainless steel with a polished finish, the TC103B-01 features a 3-inch pipe diameter and a 3-inch inlet diameter, optimizing exhaust flow for increased performance. This system is specifically designed to fit the 2020, 2021, and 2022 Subaru WRX models, ensuring a precise fit and straightforward installation. Owners have reported an "intoxicating deep and aggressive" sound, along with an "immediate increase in throttle response." The fitment is described as "spot on," with one user noting it "pushed my wheels out just enough to give a more aggressive stance without any rubbing." If you are serious about upgrading your Subaru WRX's performance and sound, the Tomei TC103B-01 is presented as a solid investment backed by quality craftsmanship.

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 NumberTC103B-01
CategoryExhaust

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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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