1 5/8 headers

moparstud440 said

How fast in the 1/4 have you gone with 1 5/8 headers with 3" collectors? ET, mph and car weight? Thanks.

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11.14 @ 117 mph weighing 3,540+ lbs. 360-4bbl, unported LAX heads, 1 5/8" - 1 3/4" TTI step headers with 3" X-pipe & Dynomax Ultraflow mufflers ending at the rear axle. 904, footbrake on 9" slicks.