exhaust on 4.7 HO should i get borla? - JeepForum.com
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 JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > WJ Grand Cherokee Forum > exhaust on 4.7 HO should i get borla?

KrawlOff-Road.com Sale EventFS: Jeep Fog Light LED Bulbs! Several Brightness Options! *STOP UNWANTED LIGHT BAR NOISE* with Pandemic LED Light Ba

Unread 07-25-2003, 11:29 AM   #1
Registered User
Join Date: Jul 2003
Location: Palatine, IL
Posts: 134
exhaust on 4.7 HO should i get borla?

ok, i have the 4.7 HO, whats a great exhaust and performs well and sounds good too. should i get a borla cat back system? I was looking for a performance cat converter too but i read that it is illeagle to swap a cat converter on any car with less than 50,000 miles, is this true?

mikkjroverland is offline   Reply With Quote Quick reply to this message
Unread 06-19-2012, 07:11 PM   #2
Registered User
2004 WJ 
Join Date: Aug 2009
Location: New Jersey
Posts: 16
As long as the new cat can pass emissions, its perfectly legal to swap. Imagine if your cat breaks before 50,000 miles, its not like you have to drive the car without a cat until you break 50,000 and can replace it.
coltlacrosse is offline   Reply With Quote Quick reply to this message
Unread 06-19-2012, 08:19 PM   #3
Kolak's Avatar
Join Date: Jun 2004
Location: Phoenix, AZ
Posts: 6,064
Have you heard of my Kolak Exhaust? It's a 3" diameter system with high flow converter. If you search here, on Youtube, or just Google it you'll get countless hits.

PM me your email address and I'll send you all the information - you get 10% off my regular pricing as a forum member.
Kolak Performance and Offroad
Member: Specialty Equipment Market Association
Telephone: 480 998-3661
kolak@aol.com or kolak@kolakperformance.com
Kolak is online now   Reply With Quote Quick reply to this message
Unread 06-19-2012, 09:14 PM   #4
Senior Member
04Overland47's Avatar
2004 WJ 
Join Date: Sep 2011
Location: Colonia, NJ
Posts: 877
Borla is roughly $400-500 for their system, and I doubt you will see much, if any, performance gains. I have a Powerstick muffler, $70 and it sounds great. Borla does have a nice tone, but the price for the stainless system is way too much imo
2004 WJ Overland 4.7HO Graphite 127k miles / Powerstick Muffler / Superchips / Bilstein HD's / Addco Rear Bar / SOLD!
1998 ZJ Limited 5.9 SOLD!
2010 WK Laredo 5.7

Youtube Channel
WJ Thread
04Overland47 is offline   Reply With Quote Quick reply to this message
Unread 06-19-2012, 09:33 PM   #5
Registered User
1999 WJ 
Join Date: Jun 2010
Location: San Antonio, Tx
Posts: 186
I ran borla on my old is300 and loved it. I have a borla muffler on my i6 4.0 now. It has the greatest tone of any muffler I've heard on 6 bangers. It sounds bad*** on mustangs also. Never heard it on a v8 jeep though.

Just my 0.02
rostig1 is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com 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. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.