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Speed Engineering's 1-7/8" longtube headers are dyno proven to add over 25 rear-wheel horsepower on LS1 and LS2 equipped 2004–2006 Pontiac GTO applications compared to stock exhaust manifolds
intended for performance and racing applications beyond a stock replacement bearing
1998-1999 Dodge Grand Caravan LE 1987-1989
1997 Ford Mustang (RWD) — LS Swap
2019-2021 Ram 2500 Lone Star 2013-2016 Ram 2500 Outdoorsman 2013-2021 Ram 2500 Power Wagon 2013-2018 Ram 2500 SLT 2013 Ram 2500 ST 2013-2021 Ram 2500 Tradesman 2013-2021 Ram 3500 Big Horn 2013-2021 Ram 3500 Laramie 2014-2015 Ram 3500 Laramie Limited 2013-2020 Ram 3500 Laramie Longhorn 2016-2021 Ram 3500 Limited 2021 Ram 3500 Limited Longhorn 2013-2015
Vibrant T304 SS Exh Manifold Flange for GM LS1/LS2/LS3/LS6/L92 motor 3/8in Thick (SOLD IN PAIRS) 2010-ford-f-250-super-duty-esi1125799 Speed Engineering's 1-7/8" longtube headersVibrant Performance has developed one of the largest offerings of Exhaust Manifold Flanges in the industry. All of our Exhaust Manifold Flanges have had their exhaust port size optimized for either standard wall round tubing or Schedule 10 weld fittings. Catalog
