AC Muscle & Classic Car 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.

Who gets your pick as the best manufacturer from the golden age of the muscle car wars?

If you're ready to swap an LS engine into you '73-'87 Squarebody Chevy or GMC truck, here's a guide to get you started and a parts list to help you get everything you need for your swap.

Ford’s 302ci small block V8 is one of Ford’s best engine designs and is capable of great power with the right parts

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.

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

Prepare your classic muscle car for autocross competition by exploring the best options, beginner tips, and essential suspension upgrades.

If you had to pick only one-is it a hot rod or a muscle car?

I'm sorry to have to tell you this, but the '64 GTO was not the first muscle car.

Making the switch from manifolds to headers is a popular performance upgrade, but it may take more than just bolting on the new part. We provide some tips and things to consider after you bolt on a new set of headers.