HSP Diesel
2001-2004 Duramax Stock Turbo Inlet Horn (103-HSP)
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 |
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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:Â 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
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.
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