null Skip to main content
Toggle Menu Shop
Advanced Search

Turbo Downpipe Kit 99-03 Ford 4in | 37A1078

Flowmaster

Turbo Downpipe Kit 99-03 Ford 4in | 37A1078

Part #37A1078
$271.99

Fulfillment

FREE in-store pickup
* Shipping not yet available
Adding to cart… The item has been added
This is our 4.00-inch replacement Turbo Downpipe to eliminate the often crimped and restrictive factory 3.50-inch turbo downpipe on all 1999-2003 Ford F-Series trucks with 7.3L Powerstroke engine. Constructed from large 4.00-inch mandrel-bent 16 gauge aluminized steel tubing for unrestricted flow, our downpipe is a must for anyone wanting to make more power with their 7.3L Powerstroke engine. This direct-fit downpipe bolts onto the turbocharger flange using the V-Band connection. Benefits include improved power and torque as well as throttle response and overall fuel mileage.
  • Unrestricted Flow Compared to Factory Downpipe
  • Large Smooth 4.00-inch Diameter Tubing
  • 16 Gauge Aluminized Steel Construction
  • Increases Overall Power Capability
  • Reduces Heat Build-up
  • Easy Installation
  • Mandrel bent 16 Gauge Tubing 4in.
  • Quicker turbo boost spool up
  • Stainless Steel Construction
  • Call tech line for applications 707-544-4761
BrandFlowmaster
Product Dimensions 15.24 x 37.59 x 107.70 inches
Manufacturer Part Number1078

In-store Pickup

  • In-stock items: Ready in as little as 2 hours.
  • Ship-to-store items: Ready in-store in 1 to 4 days.
We’ll keep you informed every step of the way and email you as soon as your order is ready for in-store pickup. Want more info? Visit Click and Collect.

Shipping

Coming soon! Sign up and we’ll let you know when shipping is available.

Returns

Most unopened online purchases can be returned or exchanged at any of our store locations within a year from the date of sale. Some exceptions apply. See our return policy for full details.

GENERAL INQUIRIES

Need help finding an item?

Ask a store representative to place a special order.