SEMA SHOW SPECIALS!

Black Friday Sales start NOW!
Flexible payment options and pay later now available: PayPal, Stripe, Klarna, Cash App, Apple Pay, Google Pay
1 12
SKU: 103-HSP-BR
5% off

HSP Stock Turbo Inlet Horn, 2001-2004 Chevrolet / GMC 6.6L Duramax LB7

No reviews yet. Bought this? Write the first review
$161.50 $170.00
Shipping calculated at checkout.
Color
Shipping & delivery

Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).

Shipping policy · Returns · Fitment questions? (561) 207-7988

Delivery and Shipping

Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.

Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.

Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.

Description
HSP Stock Turbo Inlet Horn.
Massive 3.5’’ replacement unit that will allow your LB7 Duramax, turbo charger to consume as much air as possible.
Fits 2001, 2002, 2003, 2004 Chevrolet / GMC 6.6L Duramax LB7

When ordering a custom color, we will need the specific Prismatic Color Code: Find codes here

*THE FACTORY LB7 TURBO INLET HORN IS VERY RESTRICTIVE. THIS CAUSES THE IHI TURBO TO NOT ONLY WORK HARDER TO PULL IN FRESH CLEAN AIR, BUT ALSO HINDERS SPOOL-UP AND OVERALL HORSEPOWER.

We, at HSP Diesel, have designed a massive 3.5’’ replacement unit that will allow your LB7 Duramax, and its factory IHI turbo charger to consume as much air as possible. With this small addition to your truck, you will see quicker spool-up and extended turbo life. Many customers reported power gains, and with the addition of the HSP Diesel Cold Air Intake, saw a slight drop in exhaust gas temperatures.

With this small addition to your truck, you will see quicker spool-up, and extended turbo life. Many customers reported power gains, and with the addition of the HSP Diesel Cold Air Intake saw a slight drop in exhaust gas temperatures.

*This was designed as a direct replacement and does not require any modifications to your truck!

Only install with bolts supplied.  Do NOT attempt to install with factory hardware.

INCLUDED COMPONENTS:

HSP Diesel LB7 3.5'' turbo inlet horn
(3) M6x1 replacement Hex bolts
COMPATIBLE WITH:

LB7: 01-04 VIN Code 1
BENEFITS:

Increased Spool-up
Massive 3.5'' Inlet
Upgraded Hardware
Powder Coated
Great way to improve engine bay appearance

Fitment & installation

Check the selected part against your vehicle. Need help? Call (561) 207-7988.

Selected part: 103-HSP-BR

Loading vehicle fitment…

Choose another option · Contact our shop

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Trustpilot

  • Visit our support center

    Expert help & advice

  • Check your order status

    Updates & tracking

  • Returns & exchanges

    All you need to know

  • Price-match guarantee

    Our promise to you