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Rev9

FlowMaxx 2.75-Inch Cat-Back Exhaust

$800.00 $560.00 Save $240.00

SKU: CB-221

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rev9 FlowMaxx cat-back exhaust is a performance exhaust system designed to provide an aggressive exhaust note and improved flow. Constructed from T201 stainless steel for corrosion resistance, this system features three polished, single-walled exhaust tips for a distinct rear profile.

The exhaust utilizes a 2.75-inch pipe diameter to minimize flow restriction. It includes necessary installation hardware for direct fitment onto compatible Honda Civic hatchback models.
Show original supplier description
The Rev9 FlowMaxx cat-back exhaust is an engineered solution for the 2017-2021 Honda Civic Hatchback Sport (FK) 1.5L Turbo, designed to enhance exhaust flow and provide a deep, performance-oriented sound. The system is constructed from durable T201 stainless steel to ensure long-lasting corrosion resistance and utilizes a 2.75-inch diameter piping to reduce exhaust flow restriction. This system features a signature center-exit design with three fully polished, single-walled exhaust tips for a race-inspired aesthetic. The exhaust canister measures 7 inches in diameter and 11 inches in length, contributing to the system's overall performance sound. Each kit includes the necessary installation hardware for a streamlined setup when using proper garage equipment. Note that this exhaust system is intended for off-road and competition use only due to federal emission regulations. The manufacturer specifically excludes shipping to California and New York. Users should ensure their vehicle is an FK chassis 2017-2021 Civic Hatchback Sport prior to installation to ensure proper fitment.

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

BrandRev9
Part NumberCB-221
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.

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