After Market Intake Manifold

[Jeepster19]

Is there anyone out there that makes a intake manifold for the Xj 4.0L motor?Mine is a 98.:confused:

[4.3LXJ]

I am not aware of any. But you can upgrade with a 99-00 manifold and bore your throttle body to 62 mm for about 20 hp gain.

[DETOURS]

Never did buy one of those metric rulers.......:scared0016:

Is that fact or forum mythe?

[4.3LXJ]

Never did buy one of those metric rulers.......:scared0016:

Is that fact or forum mythe?

Here is a link to check on Spanky

http://www.mallcrawlin.com/forum/showthread.php?t=6355

[BlueXJ]

Try these guys, I have never used therir products on a modern Jeep but the older carb intakes were great.

http://www.cliffordperformance.net/

[ice_cold]

They show a couple manifolds that are TBI adaptable. Going to have to send a email, I loved the one I had on my 79 CJ 7.
Its the headers that I love, dual exits!

[Jeepster19]

I looked at a intake on a 01 Xj but it looked like it was a bit different as far as sensors go.If you look at the intake manifold from the drivers side fender leaning in towards the throttle body,just shy of throttle body there are 4 sensors in a row,the 01 only had two in that area.Does anyone know what the sensors do?Do I need all four? Are they just in a different location on the 01 Xj intake manifold?:confused:

[4.3LXJ]

Current collective wisdom is that the O1 does not flow as well as the 99 - 00 manifold.

[kevinz]

I saw an aftermarket 4 barrel carb intake on ebay a while ago for a 4.0, dunno who made it....looked pretty nice and opens up many possibilities, like a 4.0 liter in my rat rod lol

[ice_cold]

Most likely a Clifford Performance.

[bluedragon436]

Current collective wisdom is that the O1 does not flow as well as the 99 - 00 manifold.

Not sure one what year mine is, I know it is a 99+ intake... either way even if it is an 01, it will flow better than my 98's stock one does...