Skip to product information
2001-2004 Duramax Stock Turbo Inlet Horn (103-HSP)

HSP Diesel

2001-2004 Duramax Stock Turbo Inlet Horn (103-HSP)

$184.68 CAD

Performance part for diesel trucks. Please confirm compatibility before purchasing.

Description
Description

Fits

Year Make Model Trim
2001-2004 Chevrolet Silverado 3500 , LT, LS
2001-2002 GMC Sierra 2500 HD SL
2001-2004 GMC Sierra 2500 HD SLT, SLE
2001-2004 GMC Sierra 3500 SLT, SLE
2001-2004 Chevrolet Silverado 2500 HD , LT, LS
2001-2002 GMC Sierra 3500 SL
2002-2004 GMC Sierra 2500 HD
2002-2004 GMC Sierra 3500
2003-2004 GMC Sierra 2500 HD WT
2004-2004 Chevrolet Silverado 3500 WT
2004-2004 Chevrolet Silverado 2500 HD WT
2004-2004 GMC Sierra 3500 WT

 

The stock turbo inlet horn on the LB7 trucks is not fantastic and this is why:  let's start with the performance of the factory turbo inlet horn, the turbo inlet horn's job is to funnel air from the intake into the turbo. The factory piece does not do a good job, it is very restrictive and does not flow well due to its size and its bends. The stock turbo inlet horn also is very simple looking, it is not a good accent and can not really be cleaned up.

The biggest issue with the LB7 trucks is that the stock turbo just feels choked. The factory IHI turbo needs to be able to consume as much air as possible no matter the circumstances. With the small addition of the HSP Stock Turbo Inlet Horn, you can jam that stock turbo with so much more air than the factory that you will be able to get so much more out of that stock turbo.

Part Number: 103-HSP

Features
  • 3.5" inlet horn
  • Designed as a direct replacement for stock applications
  • More airflow
  • Increased power
  • Powder Coating available to clean up the engine bay
  • Extended turbo life
  • Quicker turbo spool up
  • Includes O-Ring Seal

Includes:

  • Turbo Inlet Horn
  • (3) M6x1.02x20mm
Notes
  • Only install with bolts supplied. Do NOT attempt to install with factory hardware
Compatible trucks
  • Duramax 2001-2007
Shipping info

Please refer to our Shipping policy. As a general rule, we ship out all orders in 24-72 hours using services like Purolator and other, and always provide you with a tracking number.

Disclaimer & warranty

Please refer to our Disclaimer and Warranty pages.

Planning a larger purchase? Feel free to reach out to discuss a possible discount.

If you have any questions or need help with your order, you’re always welcome to contact us directly.

Contact page link

Recommended products

Grand opening giveaway is ON 🔥

$1000 CAD and an S&B intake up for grabs! Be one of the first 10 to spend $1,000 CAD in a single order and you’re entered to win $1,000 back. For all orders: leave us a review by March 31 for a shot at an S&B intake. Intake draw happens April 14.

More details here

You may also like...

Diesel tuning services for your truck

From custom tuning to in-shop and mobile installs, every service is handled personally to make your truck run better and more reliably.