18. With the OEM manifolds removed, we could compare them with the Hooker BlackHeart shorty headers. It’s easy to see why the Hooker shorty headers weigh 19 pounds less than the stock iron castings.

We install and dyno test Hooker’s BlackHeart shorty headers for LX-platform Hemi cars and get 12 HP & 16 lb-ft of torque.

We test a set of Gibson short headers and an after cat Gibson exhaust, as well as a set of new Stainless Works long tube headers and true dual exhaust system on our 2007 Chevy Tahoe. Read about ...

Think big horsepower means big money? Think again. From bolt-ons to budget-friendly tuning, you can add serious performance ...

We compare headers and manifolds to help you decide which one will help your engine perform at its best.

This time, however, the comparison will be between long-tube headers, mid-length headers, and log-style cast-iron headers – all of which are supplied by Holley Performance.