Power
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
CF Veteran


Joined: Jan 2010
Posts: 1,456
Likes: 74
From: North Riding of Yorkshire, UK
Year: 1997
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Jun 2009
Posts: 2,173
Likes: 0
From: Columbus, Ohio
Year: 1997
Model: Cherokee
Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat
the one with the air tube and the throttle body spacer? those parts are just wasting time and money. The exhaust and big bore throttle body should help though along with the K&N. May still be cheaper just to bore your own throttle body...
Senior Member

Joined: Feb 2010
Posts: 507
Likes: 6
From: Richland Center, WI
Year: 1996
Model: Cherokee
Engine: 4.0
I'm always looking for a little more power too. Can't help it. I've done a few things to mine including a 99 intake, apn header, flowmaster, neon injectors, and a comp cams extreme 4x4 cam. I did have a big bore throttle body on it it and that made the most difference, but it wasn't bored smoothly so it idled a little rough, but MAN did that thing make a difference. Gears are also a great power adder. Porting and polishing the head isn't a bad idea either.
CF Veteran
Joined: Jun 2009
Posts: 2,173
Likes: 0
From: Columbus, Ohio
Year: 1997
Model: Cherokee
Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat
Haven't had it on a dyno, but it seemed to gain a little bottom end torque with the cam.
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