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This product uses TMDB and the TMDB APIs but is not endorsed, certified, or otherwise approved by TMDB.
Once again, ladies and gentlemen, you asked and we delivered! The question was simple yet timeless: "Which makes more power, a dual 2.5-inch or a single 3.0-inch exhaust system?" To find out, we're swapping pipes on our run-of-the-mill 351 Ford, which makes about 400 hp, and to richen the pot we're also testing out turbo vs. straight-through mufflers and Y-pipe vs. a 90-degree merge. Come get all the data you can handle, right here on Engine Masters, presented by AMSOIL.
