3.5" Exhaust Up Pipe for 2017-2020 Chevy GM 6.6L Duramax Diesel L5P Silverado Sierra 2500HD 3500HD Length Replacement High Flow 116122000

SKU: XKV31053
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Description

Experience the perfect blend of quality engineering and exceptional value with these high-performance Up Pipe. Manufactured from durable T-304 stainless steel with precision CNC-machined flanges and TIG/MIG welded construction, they deliver superior durability and flow characteristics. Computerized mandrel bending technology ensures smooth exhaust airflow for improved scavenging and reduced back pressure.

Features:

  • Upgrade the L5P to achieve higher flow by bolting on PPE OEM-Length Replacement High-Flow Up-Pipes.
  • The Length Up-Pipes are manufactured from stainless steel. These new Up-Pipes include the superior internally-sleeved bellows, also manufactured from stainless steel.
  • This system is engineered to take the abuse of high temperatures and high pressures, while promoting increased exhaust flow and lower EGTs.

Fitment:

  • For 2017-2021 Chevy Silverado 2500HD/3500HD 6.6L L5P Duramax Diesel
  • For 2017-2021 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax Diesel

VEHICLE NAME YEAR ENGINE
Chevrolet Silverado 2500 HD 2017~2019 6.6L
Chevrolet Silverado 3500 HD 2017~2019 6.6L
GMC Sierra 2500 HD 2017~2019 6.6L
GMC Sierra 3500 HD 2017~2019 6.6L
Shipping & Return

SHIPPING & DELIVERY
Fast Processing & Reliable Transit

  • Processing: Orders are processed and shipped from the nearest available warehouse within 1 business day after payment.
  • Delivery: Estimated delivery time is approximately 3–4 business days after shipment.
  • Shipping - Free shipping on all orders within the contiguous 48 U.S. states.

RETURNS & EXCHANGES
30-Day Hassle-Free Policy

  • Return Window: We offer a 30-day return policy from the date of delivery.
  • Item Condition: Returned items should be unused, uninstalled, and in their original packaging when possible.
  • Return Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.

WARRANTY
2-Year Limited Replacement Warranty

  • Duration: All products are backed by a 2-year limited warranty.
  • Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).

CUSTOMER SUPPORT
We’re Here to Help – Contact Us First

  • Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
  • Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
  • Email Support: You can reach us at support@XKVracing.com.

The Exhaust Path Leading to the Turbocharger

The up-pipe carries exhaust gases from the exhaust manifold to the turbocharger. Because it sits upstream of the turbo, this section plays a role in how exhaust energy is delivered to the turbine.

On turbocharged vehicles, the condition and design of the up-pipe can influence how smoothly exhaust flow reaches the turbo, especially under sustained load or higher exhaust temperatures.

What Drivers Commonly Notice

More consistent exhaust flow reaching the turbocharger

Reduced restriction in the pre-turbo exhaust path

Smoother boost delivery during acceleration

Supports stable operation when paired with turbo-related components

Factory Up-Pipe vs. Performance Up-Pipe

Factory Up-Pipe

Engineered to meet packaging, cost, and emissions requirements
May include design elements that prioritize durability and compliance

Performance Up-Pipe

Designed with exhaust flow and heat management in mind
Built to handle higher exhaust temperatures
Often used as part of a turbo-related exhaust system setup

Is an Up-Pipe Upgrade Right for Your Build?

Own a turbocharged vehicle

Are addressing exhaust restrictions before the turbo

Are upgrading turbo, downpipe, or intake components

Want more consistent boost response

FAST SHIPPING

Ships within 1 business day after payment
3–4 business day delivery

Secure and reliable Checkout

Secure checkout with major payment options

LOCAL WAREHOUSE

Orders ship from U.S. warehouses when available

Easy Returns and Exchanges

30-day returns for eligible unused items

Parts Warranty

Warranty support for qualified manufacturing defects

Important Notice

Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.

Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.

Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.

Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.

Up Pipe FAQs

What is an up pipe? +

An up pipe is an exhaust pipe that routes exhaust gases from the exhaust manifold area toward the turbocharger on turbocharged vehicles. Its exact position and design vary by engine platform, turbo layout, and vehicle application.

Why replace or upgrade a factory up pipe? +

Factory up pipes can develop leaks, cracks, worn sealing surfaces, or connection issues over time due to heat cycles, vibration, and age. A compatible replacement or upgraded up pipe may help restore a more secure exhaust path to the turbocharger when properly installed.

What is a bellowed up pipe? +

A bellowed up pipe includes a flexible bellow section designed to help accommodate thermal expansion, contraction, and engine movement. This can help reduce stress on certain connection points where the product is compatible with the vehicle setup.

Will an up pipe increase horsepower? +

An up pipe may support improved exhaust flow or help restore lost performance if the original pipe is leaking or damaged, but horsepower and torque gains are not guaranteed. Results vary by vehicle condition, turbo setup, exhaust system, tuning, installation quality, and supporting components.

Can an up pipe affect turbo response or sound? +

It can, depending on the vehicle and full exhaust setup. A properly sealed up pipe may help reduce exhaust leaks before the turbo, while some upgraded designs may change turbo sound or exhaust tone. Final results vary by application and installation.

Do I need tuning after installing an up pipe? +

Tuning requirements depend on the vehicle, product design, emissions equipment, sensor configuration, and supporting modifications. Some replacement-style up pipes may not require tuning, while emissions-altering or modified setups may require compatible calibration. Always review the product notes before installation.

Are up pipes street legal? +

Street legality depends on the product design, emissions equipment, vehicle application, and local regulations. Some up pipes may be intended for off-road, racing, or closed-course use where emissions laws apply. Products are not represented as street legal or emissions-compliant unless explicitly stated.

Are up pipes difficult to install? +

Installation difficulty varies by vehicle. Up pipes are often located in tight areas near the turbocharger, exhaust manifolds, firewall, heat shields, or engine bay components. Rusted hardware, heat-cycled fasteners, and limited clearance can increase installation difficulty. Professional installation is recommended.

Will an up pipe fix an exhaust leak? +

A compatible up pipe may help address leaks caused by a cracked, damaged, or poorly sealing factory pipe. However, leaks can also come from gaskets, flanges, manifolds, turbo connections, hardware, or other exhaust components, so the full system should be inspected before replacement.

Will an up pipe affect reliability? +

Reliability depends on fitment accuracy, material quality, installation quality, gasket sealing, flange alignment, hardware condition, heat management, and the vehicle’s overall condition. Proper inspection and installation are important.

What should I verify before buying an up pipe? +

Verify your year, make, model, engine, turbo setup, driver-side or passenger-side fitment, flange shape, gasket style, emissions configuration, sensor layout, and included hardware before purchase.