Looking to replace the stock manifold on the 4.0 in my '90 XJ.
99% of the header options I've seen are for '91 and newer XJ's...
I was reading through a pretty in-depth thread about "The Best Header" and it seems like Gibson won the vote in that thread.
Is there any reason I wouldn't be able to slap a Gibson header for a '91 + XJ onto my '90 XJ 4.0?
Do I need to swap to a newer style intake manifold to make this happen?
99% of the header options I've seen are for '91 and newer XJ's...
I was reading through a pretty in-depth thread about "The Best Header" and it seems like Gibson won the vote in that thread.
Is there any reason I wouldn't be able to slap a Gibson header for a '91 + XJ onto my '90 XJ 4.0?
Do I need to swap to a newer style intake manifold to make this happen?