
D336-SS Stainless Steel Long-Tube Headers, 1978-1987 GM Malibu/El Camino/Monte Carlo/Cutlass/Bonneville, 265-400
- Stainless Steel Long-Tube Headers
- 1978-1987 GM Malibu/El Camino/Monte Carlo/Cutlass/Bonneville 265-400
- 1-3/4 in. Tube Diameter
- 3 in. Collector
- Oval Port Shape
3/8" Thick machined flanges...no warpingCNC mandrel bent tubes... accurate fit & better flowPrecision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepowerHeavy 16 gauge tubing...longer lifeTubes are pre-polished to remove scratches and the header is finished with a Hi-TeMP Cermaic Coating.
Every Doug's Header is Tuned with the Proper Tube Size & Length to Efficiently Remove Exhaust Gasses from Each Cylinder
Headers feature 3/8'' flanges and 16-gauge tubing on passenger car applications. They include all necessary mounting hardware, collector reducers or connection pipes, premium gaskets and detailed instructions. Headers are available in either a Metallic Ceramic Thermal Barrier Coating or a uncoated raw finish. The Metallic Ceramic Thermal Barrier Coating will withstand up to 1400 degree temperatures! This coating is polished which increases corrosion resistance over 60%!
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Features:
- Thick Flanges Prevent Warping
- Stitch Welded Ports for Added Strength
- Machined Sealing Bead Eliminates Leaks
- Heavy Gauge Tubing for Longer Life
- Precision-Formed Collectors Reduce Back Pressure
- CNC Mandrel-Bent Tubing Provides Accurate Fit & Better Flow
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