I just ordered a Thorley HDX-634Y header for my 99 XJ 4L. http://www.dougthorley.com/prod-124.htm
I'm having doubts about it for low-end torque abilities because (in hindsight), I'm not qualified to know what header to buy. I should have asked here first. Better late than never.
I need good low-end torque that's at least as good as stock, and I need improvement in mid and high-end rpm performance.
===
Bottom line is I need performance increase from 1000 to 3500 rpm, and it'd be nice if performance increased from 1000 to 4000 rpm.
Will the Thorley HDX-634Y be good for that? What header should I have got?
Notes: I already have CAI, 62 mm TB, dent free down pipe, 2.5" cat back.
Aftermarket Header advice and selection
-
- Making Progress
- Posts: 60
- Joined: June 20th, 2013, 11:36 pm
- Vehicle Year: 1999
- Vehicle Make: Jeep
- Vehicle Model: XJ
Who is online
Users browsing this forum: No registered users and 24 guests