CIMTEX RODS SUPER CAMEO: PART 3
February 16, 2024
THE AUTO BUILDER
Featured
Orange Squeeze
When you do a lot of work, as Juan Navedo has on this hot vintage 55 Chevy, it tends to turn a lot of heads on the street and on the show circuit. This is not Juan’s first time down the custom road. As an electronics technician by trade and an automotive hobbyist by choice, he has owned 15 customized vehicles over the years, and his 55 Chevy pickup is the culmination of all those years of experience. It ranks at the top of his list.
ONE-WEEKEND WONDER
Instant gratification. It’s an addicting thing whereby somewhat suddenly, you find compete satisfaction. It’s the opposite of long, laborious projects that linger on for years, doling out their pain and pleasure in measured portions along the way. Sure, it can be fulfilling, but few things are more fun than putting things in fast-forward and doing what should take a long time in a short time. TV shows are based on just such rewards in this ever-accelerating time we live in, and in a reversal, we now find life imitating art as hot rodders do their own versions of Overhaulin’; we like to call it Over-Thrashin’. Generally, there are no cameras whirling, no lights and no scripts. It’s just a bunch of hot rodders, a good garage and maybe stacks of empty pizza and parts boxes in the corner.
Product Spotlight: Pyramid Optimized Design Sequential Aurora Taillight for 1964½–1966 Mustang
If you’ve ever followed a classic Mustang at night, you know the taillights were never its strong suit. Pyramid Optimized Design decided to fix that—with style. The Sequential Aurora Taillight is a modern LED retrofit that finally gives your early Mustang the bright, even illumination it always deserved—no hot spots, no dim corners, no burned-out bulbs.
Spotlighter
Product Spotlight: Sequential 8-1 Headers by HDR Industries & Stainless Headers MFG. INC.
Dana Harp of HDR Industries partners with Stainless Headers to bring a streamlined, standardized solution to exotic jet boat header builds.
Author
The Auto Builder Staff
Photography by Scott Killeen
Built for Power & Precision
Let’s cut to the chase, because this definitely isn’t your grandpa’s set of rusty old manifolds. The HDR Sequential 8-1 Headers from Stainless Headers are a next-level, hand-crafted performance weapon for big-inch V-8s — purpose-built for jet boat and high-output marine applications — and they were one of the most talked-about exhaust systems as seen at PRI 2025.
These headers don’t just look wild on the show floor. They represent years of refinement, real-world testing, and hardcore fabrication experience from one of the most respected names in the space.
What They Are
These aren’t just headers — they’re a race-inspired, sequential 8-into-1 exhaust system designed and hand-crafted by Dana Harp of HDR Industries, now partnered with Stainless Headers to deliver a more accessible, standardized solution without losing the custom edge.
Dana Harp has made these systems famous over years of building exotic, high-end jet boat exhausts, and this collaboration brings that same DNA to builders who want something beyond off-the-shelf. Available for Big Block Chevy and Gen III/IV LS platforms, these headers deliver bespoke performance plumbing that’s as functional as it is aggressive.
Engineered for Maximum Flow
Forget cookie-cutter designs. The 8-1 configuration merges all eight exhaust runners into a single, unified path, a layout that serious racers and fabricators obsess over for its potential to balance exhaust pulses and maximize flow.
This isn’t theory-only engineering — it’s the kind of design that gives high-RPM engines room to breathe and torque that pulls hard through the powerband. Traditional systems split things up with 4-2-1 or 4-1 layouts. Eight into one is a different level entirely — rare, purposeful, and unapologetically performance-driven.
Premium Build Quality
HDR doesn’t cut corners, and it shows in every detail:
- 304 stainless steel construction with purge TIG welds for strength, durability, and corrosion resistance — ideal for harsh marine environments
- Heavy-duty 3/8-inch header flanges for rock-solid sealing and long-term reliability
- Optional finishes, including ceramic coating, mirror polishing, and custom tip work, allowing you to tailor both performance and presentation
These headers are built to survive real use, not just win points at a car show.
Built for Your Build
One of the biggest differentiators? These headers are built to order. You’re not settling for a one-size-fits-all solution — you’re working from a proven HDR design that can be fully customized to your exact needs.
Tube sizing, collector configuration, port options, O2 bungs, water injection fittings, and custom tip layouts are all on the table. The Stainless Headers partnership makes the process smoother, while HDR Industries ensures the craftsmanship stays exactly where it should be.
Real Talk: Who These Are For
If you’re chasing maximum exhaust scavenging, serious mid-to-top-end power, and a custom-fabricated look that instantly separates your build from the crowd, this is your move. High-end jet boats, extreme marine builds, race-focused engines, or wild custom applications — the HDR Sequential 8-1 Headers deliver both performance and presence.
This isn’t just an exhaust system — it’s a statement piece, equal parts engineering art and horsepower liberator. If peak flow, exclusivity, and real craftsmanship matter, this is how you do it.
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