aFe Twisted Steel short-tube headers for 2011–2021 Jeep Grand Cherokee (WK2) 5.7L V8 and compatible Durango models are mandrel-bent from 1-5/8 in 304 stainless steel for strength and flow. They use factory-style laser-cut and machined flanges for a leak-free seal and bolt into stock locations with no cutting required. Dyno-proven gains up to +6 HP and +7 lb-ft support their performance intent.
aFe Twisted Steel 11-21 Jeep Grand Cherokee (WK2) 5.7L V8 Headers - Titanium (Ceramic Coated)