Headers vs. Manifolds - Ferreting Out Fumes

We compare headers with stock manifolds in a dyno testDid we raise more questions than we nailed down answers? Once upon a time I had this idea: While strolling the aisles at SEMA last November-the largest automotive aftermarket trade show in the universe-amongst all the glitz that is Vegas, I spied a set of hedders (that's how Hedman has always spelled it) for a Pontiac. But these were different; they were shorty hedders-a style made famous by late-model Mustangs, Camaros and Firebirds.


Photo Gallery: Headers vs. Manifolds - Huge Aftermarket vs. Stock Exhaust Dyno Test - High Performance Pontiac Magazine

Photo Gallery: Headers vs. Manifolds - Huge Aftermarket vs. Stock Exhaust Dyno Test - High Performance Pontiac Magazine


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