Headers are made with 409ss, CNC Mandrel bent tubing, & CNC Machined Flanges. # 6-1 1 piece # 2.25" outlet Fits Jeep Cherokee or Wrangler 1991 1992 1993 1994 1995 1996 1997 1998 1999 4.0L Not only will this header improve the look of your engine but will also increase performance, HP, & give you that cool engine roar you've been looking for!