Exhaust› Exhaust Pipes, Systems and Components

Milltek

Large Bore Downpipe with 5-Inch Diameter HJS Race Catalytic Converter

$1,123.00

SKU: MSHO158

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Milltek MSHO158 is a large bore downpipe featuring a 5-inch diameter and a 200-cell HJS race catalytic converter.
Show original supplier description
The Milltek MSHO158 is a high-performance, large bore downpipe designed specifically for motorsport applications. Featuring a substantial 5-inch diameter and equipped with a 200-cell HJS race catalytic converter, this downpipe is engineered to maximize exhaust flow and performance. Its construction utilizes durable cast aluminum for longevity and heat resistance. It is critical to note that this component is strictly intended for motorsport use and is not street-legal. This downpipe is part of the SSXHO292 system and is compatible with the Honda Civic Type R FL5 and FK8 models. While specific year ranges are not detailed for this individual part, the broader system is listed for the FL5 (2022 - Present) Type R 2.0 i-VTEC, covering both OPF and Non-OPF models. It is recommended that vehicles fitted with an uprated catalyst be re-calibrated to optimize performance and flow.

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

BrandMilltek
Part NumberMSHO158
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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