Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow

Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow

Vendor: cavusheo
SKU: DPF-DRXL5-66
Availability: In Stock
$179.99
$219.99
$179.99
  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.
Subtotal: $179.99

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Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow

Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow

$219.99 $179.99
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow
Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow

Cavusheo 3.5" Turbo Downpipe for 2017-2023 L5P Duramax - Unleash Turbo Response & Flow

$219.99 $179.99
Description

Unlock Your L5P's True Potential with a High-Flow Turbo Downpipe

Most diesel owners know a DPF delete frees up exhaust flow, but did you know the biggest restriction on your L5P Duramax is at the very beginning? The factory DOC (Diesel Oxidation Catalyst) integrated into the stock downpipe is a major bottleneck. The Cavusheo 3.5" Turbo Downpipe removes this restriction right at the turbo outlet, unlocking faster spool, lower EGTs, and a foundation for serious horsepower.

Why Upgrade Your Downpipe Before Anything Else?

  • Eliminate the First Restriction: Deleting the DPF helps, but removing the DOC directly after the turbo provides the biggest gain in exhaust flow and turbo response. It's the most critical part of the exhaust system.
  • Quicker Turbo Spool & Throttle Feel: By reducing backpressure at the source, exhaust gases exit faster, spinning the turbocharger's turbine wheel more quickly. You'll feel the difference in throttle response immediately.
  • Critical Lower EGTs Under Load: A freer-flowing downpipe is essential for lowering Exhaust Gas Temperatures (EGTs), especially when towing heavy or during high-performance off-road driving. This protects your engine and turbocharger.
  • Built for Performance & Durability: Constructed from high-quality 3.5" mandrel-bent tubing and includes heat wrap. The wrap keeps heat in the exhaust (boosting gas velocity) and out of your engine bay, reducing heat soak on vital components.

Product Highlights:

  • Size: 3.5-inch stainless steel turbo downpipe.
  • Design: 4-bolt turbo flange with two pre-installed studs for easy installation.
  • Fitment: 2017-2023 Chevy Silverado & GMC Sierra 2500HD/3500HD with 6.6L L5P Duramax.
  • Installation: Bolt-on at the turbocharger using factory mounting locations. Basic hand tools required.
  • Note: 2020+ trucks may require minor hanger adjustment. Designed to work seamlessly with DPF delete pipes and full exhaust systems.

WARNING: This product is designed and sold for OFF-ROAD / RACING USE ONLY. It is not legal for sale or use on pollution-controlled vehicles operated on public highways. Custom tuning is REQUIRED. By purchasing, you acknowledge responsibility for complying with all applicable local, state, and federal laws.

Shipping & Return

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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$179.99
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  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.
Vendor
Example product title
$179.99
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  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.
Vendor
Example product title
$179.99
$219.99
$179.99
  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.
Vendor
Example product title
$179.99
$219.99
$179.99
  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.
Vendor
Example product title
$179.99
$219.99
$179.99
  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.
Vendor
Example product title
$179.99
$219.99
$179.99
  • Uncork Turbocharged Power at the Source: Replaces the restrictive factory DOC (Diesel Oxidation Catalyst) directly at the turbo outlet, eliminating the first major bottleneck in your L5P's exhaust system.
  • Up to 20% Improved Exhaust Flow: Engineered with smooth 3.5" mandrel-bent tubing to significantly reduce backpressure immediately after the turbo, allowing for quicker spool-up and increased horsepower.
  • Heat Management is Key: Includes high-quality heat wrap to reduce under-hood temperatures, improve exhaust velocity, and protect vital engine components from heat soak.
  • Direct Bolt-On Installation: Features a factory-style 4-bolt turbo flange with pre-installed studs for a straightforward, hassle-free installation using basic hand tools.
  • ⚠️ Off-Road Use Only – Tuner Required: This downpipe is for off-road/racing use only. Custom tuning is REQUIRED to prevent check engine lights and optimize performance gains.