more power from yj? -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > more power from yj?

WIN a Rough Country Forged Track Bar - ExtremeTerrain!1987-2016 Wrangler Jammock Black 2.0 Jeep Hammock (YJ, TJ Rancho rockGEAR promotion gear from January 1-February 29,

Unread 03-21-2002, 10:00 PM   #1
Registered User
Join Date: Jan 2002
Location: Western Massachusetts
Posts: 286
more power from yj?

Has anyone removed the reducer from inside the air tube on their 4.0l for increased power? just read about the mod in a magazine and was wondering if it had any effect, good or bad?

1982 cj7. Frame off. shell valley kevlar body, stainless hinges, Bestop seats and supertop, KC titanium lights, Homemade swing out tire carrier with spare front wheel bearings/hub, Built 304,DUI,Edelbrock shorty headers with dual stainless 21/2 tubes into incynerator cans 21/4 dumped out the back,Edelbrock 600cfm, performer intake and cam, Borgeson lower column, Centerforce clutch, NV-4500, Dana 300 w/custom built twin stick, Homade 1/4" steel skid plate, 2.5 soft ride w/ 1" shackle lift, 33x12.5 mtr's. Stainless fuel and brake lines, Braided hoses. more...
Bulletproofcj7 is offline   Reply With Quote Quick reply to this message
Unread 03-22-2002, 12:30 PM   #2
Registered User
Join Date: Oct 2001
Location: Middletown, CT
Posts: 24
I learned that from and I can feel the differience . Also I still get the same crappy miles per gallon. Only thing is I have a 2.5l not a 4.0l.

CT Jeeper
95YJ Rio Grande
2 Daylighters, 2.5l auto, 29's, 1' body, both air-restrictors removed, and a whole lot of mud.
Saving up for RC lift!
Jeepin-J is offline   Reply With Quote Quick reply to this message
Unread 03-22-2002, 12:31 PM   #3
Dan's YJ
Join Date: Feb 2002
Location: Lompoc Calif
Posts: 233
I removed mine and it didn't feel any different. So I put it back.

1994 YJ 4.0
1994 Bronco HD
Warn 8000
2"lift, 32x12.50
Dan's YJ is offline   Reply With Quote Quick reply to this message
Unread 03-22-2002, 03:44 PM   #4
Registered User
Join Date: Jul 2001
Posts: 270
I removed the one in the neck of the air box and the one in the front of the air box and I felt a difference in power
Jason Gregory
95 yj Rio Grande 2.5L
31" BFG MUDS, 1"BL,2" homemade spring lift, 150W KC'S, KN Filter, both air restricters gone, track bars gone, quick discos, & high flow cat

"just like all addicts my need to satisfy my addiction far exceeds my wallet!!"
GREGDOG95YJ is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.