aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0L spo-cs-disabled evenly spaced pleat design which

evenly spaced pleat design which allows for more usable filter surface area

Factory style laser cut machined mild steel flanges are used used for a secure leak-free seal

The black powder coat on this pan helps protect it from the outside conditions

The Heavy Duty pressure plates are recommended for use with a street or race disc

6" Interlock Flex Pipes: The front race-pipe utilizes heavy duty 6" flex tubes with internal interlock liners

aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0L spo-cs-disabled evenly spaced pleat design whichThe new 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. Twisted Steel headers are 100