SKU: 68730957853

2016-2021 Honda Civic 1.5T High Volume Downpipe Upgrade

Sale price$393.30 Regular price$437.00
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Pay in installments of $109.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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For Your Every Summer RSVP, with Code: SUMMER15

Description

2016-2021 Honda Civic 1.5T High Volume Downpipe UpgradeDescription Fits all 2016 2021 Civic 1. 5TFits all 2017+ CRV 1. 5TFits all variant models including Si, CVT, 6MT, RHD, International Models, Etc. Overview Important Notes: NO ECU CALIBRATION REQUIRED PENDING EPA CARB APPROVAL PAIR WITH 3" FRONT PIPE UPGRADE FOR OPTIMAL PERFORMANCE COMPATIBLE WITH FACTORY AND OR MOST AFTERMARKET FRONT PIPES NO ADAPTER NECESSARY NOT COMPATIBLE WITH OUR BIG TURBO KIT, KIT COMES WITH A SPECIFIC DOWNPIPE DESIGNED TO WORK

Description

Fits all 2016-2021 Civic 1.5T
Fits all 2017+ CRV 1.5T

Fits all variant models including Si, CVT, 6MT, RHD, International Models, Etc.

Overview

Important Notes:

  • NO ECU CALIBRATION REQUIRED
  • PENDING EPA/CARB APPROVAL
  • PAIR WITH 3" FRONT PIPE UPGRADE FOR OPTIMAL PERFORMANCE
  • COMPATIBLE WITH FACTORY AND/OR MOST AFTERMARKET FRONT PIPES – NO ADAPTER NECESSARY
  • NOT COMPATIBLE WITH OUR BIG TURBO KIT, KIT COMES WITH A SPECIFIC DOWNPIPE DESIGNED TO WORK WITH THE KIT.

Technical Notes:

Research and testing has shown that a downpipe upgrade is one of the most effective modifications to perform when looking to increase efficiency out of Honda's 1.5L turbo engine. The PRL Motorsports High Volume downpipe upgrade promotes optimal airflow with virtually no turbulence throughout the body of the downpipe.

Our design utilizes 304 stainless steel investment cast ends, CNC pocketed for a smooth transition to a 4.50" OD, 400 CPSI GESi G-Sport catalytic converter for the middle body. This 4.50" OD catalytic converter was formulated for small displacement direct injection vehicles and offers optimal exhaust flow. All components are fully back-purged on site to withstand high exhaust gas temperatures. The wide shape of the cast inlet smoothly blends the turbine outlet and wastegate gases to reduce restriction, while the cast outlet allows smooth taper to aftermarket and/or factory front pipe. Pair this with our 3" Front Pipe Upgrade for maximum exhaust flow and performance! All kits will include gaskets, stainless hardware, and components needed for a seamless installation.

Exhaust components that may become damaged over time from being coated, heat wrapped or otherwise insulated in some capacity are not covered under the PRL Motorsport's Manufacturer Warranty. Insulating these components can cause heat to cause degradation of the material faster than would normally occur.

Performance Gains:

  • Increased power and exhaust flow throughout the entire powerband
  • Decreased backpressure & cooler exhaust gas temperatures
  • 400 RPM increase turbocharger spool

Kit Includes:

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 68730957853

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4.1 ★★★★★
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Nobody
San Leandro, US
★★★★★ 5
GREAT PROPDUCT
Size: 2 fl oz
EXCELLENT
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 4
Cleans Out Working Carburetors
Size: 2 fl oz
I recommend this product for engines that will in fact start but not run well. I highly recommend it for that specific purpose, which it is designed for. It cleans the inner workings of the carburetor. Of course, you will have a cleaner carburetor if you take it apart and clean it with proper tools and a proper carburetor cleaner. You spray it in the gas tank, start the engine, and let it run a bit. It will not start an engine with a totally plugged up carburetor. Nothing is going to do that. Nor is it a fuel stabilizer, as one previous reviewer seemed to think. Nor is it a product to be used to bring life back to stale gasoline, as another reviewer seemed to think. The only thing to do with stale gasoline is drain it out and pitch it. Nor is it a product to be used for cleaning a carburetor you have taken apart to clean. You should use a proper carburetor cleaner for that purpose. I've given it four stars because it cleans out mildly plugged up carbs. It is not a miracle solution for really neglected carbs as the name suggests.
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Reviewed in the United States on April 12, 2020
R
Verified Purchase
Ray
Fort Morgan, US
★★★★★ 5
Helps fixing small engines
Size: 2 fl oz
⭐⭐⭐⭐⭐⭐⭐
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
J
Verified Purchase
JustAGeek
Chelsea, US
★★★★★ 5
It works like magic, saved me $150.
Size: 2 fl oz
I filled 1/4 tank of gas into my snowblower which I could not started, sprayed about 15 seconds of Start Your Engines, rock snowblower to mix well, let it sat for an hour. I pulled string and yet couldn't start engine. Unscrewed spark plug and spray some into cylinder, put the spark plug back and pull the string. ENGINE STARTED!!! SAVED ME AT THE LEAST $150.
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Reviewed in the United States on March 1, 2026
B
Verified Purchase
Bear
Charlottesville, US
★★★★★ 5
Great
Size: 2 fl oz
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

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