Detail
91-99 Wrangler TJ/YJ;4.0L 6 cylinder engine;Stainless steel;1.5 14-gauge 409 stainless steel tubing;0.5 thick head flange;Merged collectors;100% TIG welded;50 State Legal CARB EO# D-550-12; California Residents: WARNING The Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have designed this header using optimum tube lengths and mitered collectors for maximum flow and velocity for power delivery across the entire power band. Combine with a large 1/2 thick head flange and 14-gauge 409 stainless steel tubing, you have a header that is strong and powerful. in recent dyno testing, this header produced 7hp and 9lbs. x ft. of torque. Twisted Steel headers are 100% bolt-on with no modifications necessary
