12 Hole Injectors
Thread Starter
CF Veteran

Joined: Apr 2014
Posts: 1,181
Likes: 60
From: Florida
Year: 1999
Model: Cherokee
Engine: 4.0l
So what do you guys think about these new 12 hole injectors? I seen nickintimes on youtube installed them with one being faulty but after he got it replaced he said his jeep runs so much smoother. Would 210 bucks be worth it?
Senior Member
Joined: Dec 2017
Posts: 622
Likes: 9
From: Calgary, AB
Year: 1998
Model: Grand Cherokee (ZJ)
Engine: 5.2
To me I would say the running better is that of which has been said around here... new injectors run better. You can see as he pulls the old ones out how gross and dirty they are.
Also he is converting the EV1 to EV6 connectors so that would have to be factored in as well.
Worth it? Nah.
Also gas is not flammable but the vapor is.
Also he is converting the EV1 to EV6 connectors so that would have to be factored in as well.
Worth it? Nah.
Also gas is not flammable but the vapor is.
CF Veteran
Joined: Oct 2011
Posts: 1,394
Likes: 8
From: SEMO
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 L6
BTW, you can buy 12 hole injectors for 115-125 here on the forum.
The guy in the video mentioned going from 10 to 13 MPG. At 10 MPG, Those Saab injectors must have had serious issues. No wonder he felt such an improvement.
The guy in the video mentioned going from 10 to 13 MPG. At 10 MPG, Those Saab injectors must have had serious issues. No wonder he felt such an improvement.
Thread Starter
CF Veteran

Joined: Apr 2014
Posts: 1,181
Likes: 60
From: Florida
Year: 1999
Model: Cherokee
Engine: 4.0l
not bad! i may pick up some as im sure they need to be changed with all the old gas that went through it and new o2 sensors and exhaust system my mpg better spike up because 6 mpg is p****** me off now. Im waiting for an obd2 scanner and see what my o2 sensor is doing along with my fuel trim numbers
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