2004 GMC Envoy Headers and Exhaust Parts

Headers and manifolds differ in design and function. Long tube headers, shorty headers, and exhaust manifolds each have their pros and cons regarding performance and application.

Whether you’re looking for performance improvements or heat reduction, if you decide to wrap your headers, we'll show you the benefits and possible precautions to take before you wrap your exhaust.

In this detailed article, Tim will guide you on how to build a custom set of 241 Red Ram Hemi driveshaft headers. From the concept to the materials needed, he'll show you how the mockup and final assembly steps.

Some basic info on the various exhaust options carried by Speedway Motors.

Watch our video on the ceramic coating process for Armor Hot Coating. Headers coated with Armor Hot Coating protect your car without sacrificing looks.

Learn how to wrap exhaust headers to help keep under hood temperatures down. This articles shows how cast iron exhaust manifolds are wrapped in 1-inch black header wrap with stainless steel exhaust wrap ties.

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Follow along as our Expert details his restoration methods for making an engine in an old 1954 Chevy look new again with a little cleaning and refinishing.

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.

Tim shows off our aluminum cylinder heads for 348-409 Chevys.