Exhaust› Exhaust Pipes, Systems and Components

PRL Motorsports

High Volume Downpipe w/ 4.50-Inch GESi G-Sport Catalytic

$899.99

SKU: PRL-HC11-HVDP

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 PRL Motorsports High Volume Downpipe Upgrade is a performance exhaust component designed to increase efficiency for Honda's 1.5L turbo engine. It promotes optimal airflow with minimal turbulence. The downpipe features 304 stainless steel investment cast ends and a 4.50″ OD, 400 CPSI GESi G-Sport catalytic converter.

This upgrade is compatible with all 2022+ Honda Civic 1.5T models, including Si, CVT, 6MT, RHD, and international variants. It is also compatible with the 2023+ Acura Integra 1.5T and 2023+ Honda Accord 1.5T.
Show original supplier description
The PRL Motorsports High Volume Downpipe Upgrade is engineered to optimize airflow and increase the efficiency of Honda's 1.5L turbo engine. Research and testing indicate that a downpipe upgrade is one of the most effective modifications for boosting performance in these vehicles. This downpipe promotes optimal exhaust flow with virtually no turbulence throughout its construction. Constructed with 304 stainless steel investment cast ends, this downpipe features CNC pocketing for a smooth transition to a 4.50″ OD, 400 CPSI GESi G-Sport catalytic converter. This specific catalytic converter is formulated for small displacement direct injection vehicles to ensure optimal exhaust flow. All components are fully back-purged on-site to withstand high exhaust gas temperatures. The wide cast inlet smoothly blends turbine outlet and wastegate gases to reduce restriction, while the cast outlet allows for a smooth taper to aftermarket or factory front pipes. For maximum exhaust flow and performance, it is recommended to pair this downpipe with the PRL Motorsports 3″ Front Pipe Upgrade. All necessary gaskets, stainless hardware, and installation components are included for a seamless installation. This downpipe is designed to fit all 2022+ Honda Civic 1.5T models, including Si, CVT, 6MT, RHD, and international variants. It is also compatible with the 2023+ Acura Integra 1.5T and 2023+ Honda Accord 1.5T.

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

BrandPRL Motorsports
Part NumberPRL-HC11-HVDP
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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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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