Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum > Performance Exhaust & CAI

Join Wrangler Forum Today


Thread: Performance Exhaust & CAI Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

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

Log-in

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
08-30-2008 12:39 AM
PastorSteve A buddy of mine came by today with his modified 08 unlimited. He put a flowmaster system and it sounds great. Not a lot louder but a great rumble.
08-22-2008 12:54 PM
ekpowell
Exhaue and CAI

I put Gibson single exhaust which has a great sound to it and an Airaid intake on after about 300 miles plus new 18 x 9 aftermarket wheels. That first tank of gas I got 15 mpg in 4 dr sahara hard top 4wd auto. Next tank I got closer to 16 mpg. Next tank about 16.5 and now I am averaging about 17 to 17.5 mpg with mix of city and highway driving in Houston. How much is due to just breaking in and how much due to aftermarket accessories is unknown, but my but dyno tells me it has a little more kick on the highway when you punch it and pass someone.

Some people argue that CAI and exhaust don't do much for you in these dodge/chrysler/jeep vehicles that don't use mass airflow sensor systems, but I think as the computer adjusts to air that may only be slightly cooler and a less restrictive exhaust it does begin to map differently to the fuel air table in the computer and small gains are obtained. Is it worth the money??? I had an 04 Durango Hemi and still have an 06 Charger RT Hemi and on both of these installed Magnaflow exhausts, CAIs, and on the Charger used a Superchips tuner. Both perforformed better and from 3k to about 10K the fuel effeciency improved on both by about 2.5mpg overall from 3k to 10K. A friend has an 08 Charger RT stock with 5k miles on it and we switched for a day as an experiment and we both agreed that mine has a lot more pep and I average 17.5 mpg around town and he average less than 14.5 mpg. Do the math and it cost me $1k for it all and after about 35K miles it had paid for itself in fuel savings. Is it the best return on investment - probably not - but it is a lot more fun to drive!
08-21-2008 11:24 AM
jeffsjk I would just put a K&N replacement filter in it. As for the exhaust.
I'm not to sure about a cat back system having any advantages to
it. My opinion is that for the money you spend on a cat-back
system and the return you get in performance it's not worth it.
Also you have to figure that your main obstruction in the exhaust is the cat.
So everything after the restrictive cat really doesn't matter.
I would spend the $$ on a hypertech programmer and some
gears before the exhaust. JMO
jeff
08-21-2008 09:41 AM
Tray
Performance Exhaust & CAI

I drive mostly highway miles and need to know what brand of performance exhaust and CAI would be recommended? Should I go with a Banks, Borla, or Force? I don't want the jeep to sound like a pissed off weed eater, but I would like better performance on the highway.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 01:11 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC