HDR Industries- Sequential 8 into 1 Jet Boat Headers

As Seen at PRI 2025! And made famous from years of building these systems, Dana Harp of HDR Industries is now partnering with Stainless Headers to bring together an easy, standard solution for your exotic jet boat header needs. Hand crafted by HDR Industries, and built to order, these headers are fully customizable to fit your exact needs.

Available Engine Applications:

Standard Bore (4.84") Big Block Chevy (All deck height options available!)
All Gen III/IV Chevy LS Engines & Header Combinations

Standard Features:

-Purge TIG-welded 304 Stainless Steel, 16ga (.063") Standard
-3/8" Thick Header Flanges
Available in straight tube size or stepped configurations
SHM and HDR assistance for Header + Collector sizing recommendations, uniquely selected to fit your engine's needs.
Brushed Finish Tubing Standard

Optional Features:

Insert-Style Muffler in Collector Tip
Custom Tip Designs (Straight/Slash Cut/Teardrop/Fishmouth)
EGT Sensor Fittings (Racepak External Thread Style or 1/8" NPT)
Water Injection Fittings (Custom to your build, OR utilize your existing water lines from other branded headers!)
O₂Sensor Bungs for EFI or Data Logging Applications
Ceramic Coating or Mirror Polishing Finishes available

How To Order-

Call or email Dana to get your design configured and get into his build schedule: 253-882-8871, or hdrindustries@yahoo.com
Give us a call directly to get you in contact with Dana for your build timing and details: 651-448-8661 or sales@stainlessheaders.com
Check out Dana's work on Instagram: @HDR_Industries
Check out Dana's work on TikTok: @HDRIndustries
Check out HDR's Merch Store and New Product Listings: HDR-Industries.net