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Do you need durable horsepower-building exhaust headers for your Ford Power Super Duty F-Series or Ford Excursion? Install a set of these high-flow stainless tubular headers complete with heat wrap to reduce under-hood temperatures and increase exhaust flow!
These have added 27 hp and 56 lbs-ft of torque on a Powerstroke with a stock tune, and added as much as 37 hp and 99 lbs-ft of torque with a modified tune. SInister Diesel headers produce power in the low RPM power band, making these perfect for towing.
These tubular headers are made from durable stainless steel and are built to last. Headers include CNC stainless flanges and are precision TIG welded. Headers are tightly wrapped with a heat barrier wrap and include an EGT bung, welded on the driver side header. Pick one up for your Ford Power Stroke today! These wrapped exhaust headers are for a 2003, 2004, 2005, 2006, or 2007 Ford Super Duty or Excursion with a 6.0L Powerstroke engine.
This item is 50-state legal (CARB E.O Number D-721-2).
Features and Benefits:
309 Stainless Steel Tubing For High Temperature Oxidation Resistance
Mandrel Bent Tubes with TIG Welded CNC Precision Machined Flanges for Precision Fitment
Heat Wrapped to Reduce Engine Bay Temperatures and Improve Power
Back Purged Welds for Superior Stength
1 5/8" Primaries to 2" Collector
Performance Notes - Up to 27 hp and 56 lbs-ft on stock tune and up to 37 hp and 99 lbs-ft with a modified tune
Includes:
(1) Set of Sinister Diesel Exhaust Headers
(1) Set of exhaust gaskets
Steel mounting hardware for installation
***This Product Requires 2-4 Week Lead Time For Fabrication (If needed quicker, please call for availability and shipping time)***
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Coops Custom offers custom products and custom bundles with certain products, if you have a major project and you need more than one part please contact us at 800-214-6218.
Fender Flares: | Available in color match colors. |
Colored Matched Bud Shields: | Most of our AVS bug shield are avialble in color match. |
Power Combos: | We offer bundles of tuners, exhausts and air intakes. |
wheels and Tires: | Coops offers mounted and balanced Wheel and Tire Combos. |
Coops Customs General Aftermarket Auto Part FAQ.