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Old 03-30-2011, 08:55 PM   #1
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Best exhaust upgrade?

I was looking at exhausts and wasn't sure if the AFE HIGH TUCK EXHAUST was a good replacement for the factory or if there was a better choice that i should go with. Any body had this AFE system on their TJ? If not then what is the best to go with?

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Old 03-30-2011, 09:51 PM   #2
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I believe the AFE system is rather new for Tjs and I don't know much about it. Many people including myself like the banks monster system. But I have heard good things about JBA, gibson, and a custom done flowmaster 40 setup. If you do plan to install your self you will need to saw the rear exhaust pipe to get the muffler to come down. Also a breakerbar for the hanger nuts helps alot.

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Old 03-30-2011, 10:11 PM   #3
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Flowmaster 40 and borla headers are what I have on my tj... it adds a little sound/performance, nothing to make the girls weak in the knees... but its better than stock!
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Old 03-31-2011, 05:57 AM   #4
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i have seen videos of tj's with the flowmaster set up and i think they do sound really good. I was thinking about getting that cat back from summit but it's about $400 it's a 2.5in set up. Rusty's offroad has a cat back from flowmaster but it's a 2.25in for $200. I have read they don't add much power if any at all, not what i'm concerned since my stock muffler has a huge hole in it so thats why i need to replace it. The few reasons why i thought the AFE system might be good was it's tucked up into the body for a little better ground clearance and is a 3in pipe an "supposed" to add 9hp and 5ftlbs of torque, give or take. Have found this set up for $240, but it is hard to steer away from products like flowmaster that i have on my other rides.
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Old 03-31-2011, 06:46 AM   #5
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Quote:
3in pipe
Holy Crap! My diesel pickup came with 3 inch pipes... I'm not sure, but you might be loosing performance when you go that big... I know diesels have to be retuned to run pipes over 5" correctly...
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Old 03-31-2011, 07:15 AM   #6
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JBA headers and Banks Monster 2.5in exhaust is what I run. I have been very pleased.
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Old 03-31-2011, 07:35 AM   #7
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Have the Flowmaster-don't think it is "hanging down" as far as the stock-but not sure-like the sound--- performance? who knows. I am happy with it overall-get a lot of comments on how it sounds.
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Old 03-31-2011, 07:44 AM   #8
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Jeep Wrangler Cat-Back Exhaust Shootout - Jp Magazine
might help u out a bit jp mag did a test on a bunch of systems
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Old 03-31-2011, 04:33 PM   #9
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thanks for all the help and opinions, the magazine article will help out alot, thanks jww3rd
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Old 03-31-2011, 08:38 PM   #10
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If yor read the article by JP mag, they don't even try to say if there was an improvement in hp or torque. Which leads me to belive there was not much improvement.
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Old 03-31-2011, 08:44 PM   #11
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Speaking from motor building experience, 2 1/4 on a jeep is plenty.. in stock form you don't have enuff power or flow to use 2 1/2, you are looking to much back pressure and are actually hurting your performance by goin that big..

My built 429 big block is only running 2 1/2. On that I could get away with 3inch but really don't need it..
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Old 03-31-2011, 08:44 PM   #12
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Quote:
Originally Posted by rockhard98
Speaking from motor building experience, 2 1/4 on a jeep is plenty.. in stock form you don't have enuff power or flow to use 2 1/2, you are looking to much back pressure and are actually hurting your performance by goin that big..

My built 429 big block is only running 2 1/2. On that I could get away with 3inch but really don't need it..
* loosing to much back pressure* stupid phone
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Old 03-31-2011, 11:33 PM   #13
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for the cubic inches the motor is, wouldn't make sense to go for a huge exhaust cause you'll end up loosing and hurting performance, more and more it looks like flowmaster is what i'll end up putting on with the simple 2.25in or the 2.5in
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Old 11-26-2011, 11:52 AM   #14
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Quote:
...
My built 429 big block is only running 2 1/2. On that I could get away with 3inch but really don't need it..
Not really comparing oranges to oranges though as I'd assume you're running a dual exhaust... That would be 214.5 cid into each 2.5" pipe (also probably have a cross over pipe offering less restriction).... The TJ is running all 242 cid through the same single pipe / muffler....

I'm not trying to say the TJ needs a 3" exhaust but a 2.5" DUAL exhaust offers a lot less restriction that an SINGLE 3" exhaust...
....
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Old 11-26-2011, 12:01 PM   #15
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I was thinking about the AFE as well. I found some pics on the JK forum, but I didn't like the location just below the gas tank. This might make contact with the ground when you are going across a dry wash or gully. I wonder where the AFE is located. I also would like to know how loud it is. The Dynomax seems like the best deal for the money when there is a $75 rebate.
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Old 11-26-2011, 12:21 PM   #16
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To me, catalog "cat back" exhaust systems like Quadratec pushes are way overpriced and are nothing special. Not to mention you're usually paying extra for the new exhaust pipe that is seldom needed unless it is rusted out from salted roads.

You can drive your Jeep into your local independent muffler shop and tell them what you want and they'll install it for less $$$ than you'd pay for one of the catalog systems... and have it the same day too instead of waiting for UPS. Tell them what type of sound you want and they'll help you pick out the right muffler to go with it. Stainless steel tip? No problem.
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Old 11-26-2011, 12:29 PM   #17
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The local shop where I live doesn't use mandrel bent tubing, but they did have a wide selection of name-brand mufflers.




Quote:
Originally Posted by Jerry Bransford View Post
To me, catalog "cat back" exhaust systems like Quadratec pushes are way overpriced and are nothing special. Not to mention you're usually paying extra for the new exhaust pipe that is seldom needed unless it is rusted out from salted roads.

You can drive your Jeep into your local independent muffler shop and tell them what you want and they'll install it for less $$$ than you'd pay for one of the catalog systems... and have it the same day too instead of waiting for UPS. Tell them what type of sound you want and they'll help you pick out the right muffler to go with it. Stainless steel tip? No problem.
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Old 11-26-2011, 12:29 PM   #18
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This video shows the location of the afe exhaust.
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Old 11-26-2011, 12:43 PM   #19
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Thanks for posting the video. Seems like a pretty easy install. I'm tempted to get the exhaust for my 04 Sport. Thanks again!


Quote:
Originally Posted by rayman375 View Post


This video shows the location of the afe exhaust.
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Old 11-26-2011, 12:46 PM   #20
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I just put one of these on mine. Looks a whole lot like a Flowmaster, inside and out. Sounds good; not too loud.

Thrush 17651 - Thrush Welded Mufflers - Overview - SummitRacing.com
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Old 11-26-2011, 01:50 PM   #21
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That video was nice and glad to see they did a dyno before and after. However, that is likely a big investment for 12 hp. I just don't see the point in hp gains on a jeep.
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Old 11-26-2011, 03:22 PM   #22
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hmmm i wish my skid plate came off that easy =/
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Old 11-26-2011, 04:11 PM   #23
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I like how the mechanic says all done in an hour. Yeah, maybe in a perfect world.
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Old 11-26-2011, 04:17 PM   #24
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I got a flow master 40 installed while I waited for 140 out the door. It sounds terrific. Nice and throaty. Jeep sounds like it has a v8 now.
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Old 11-26-2011, 04:24 PM   #25
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i tried to get my skid plate off once... 1 bolt... came threw the frame the other one just sat there and spun cuz the nut on the inside of the frame was broken loose... skidplate 1 me 0.. said screw it on the other 4 and drilled all the way threw the frame to get the 1 corner back up. just like the shock mounts... shud have took about a hour and ended up taking 4 hours! sigh damn wisconsin salt!
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Old 01-29-2013, 09:52 AM   #26
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Originally Posted by artamus View Post
I got a flow master 40 installed while I waited for 140 out the door. It sounds terrific. Nice and throaty. Jeep sounds like it has a v8 now.
what king of piping are you using?
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Old 01-29-2013, 10:18 AM   #27
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I'm running the banks monster cat back with the torque tube headers by banks as well. Sound is perfect but as others have stated, don't expect noticeable power gains.
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Old 01-29-2013, 10:27 AM   #28
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I have the banks monster on mine. Has a nice little rumble at idle and isn't too loud on the highway.
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Old 01-29-2013, 10:33 AM   #29
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Banks Monster Exhaust video

I have the banks monster exhaust on my 05 rubicon and really enjoy it here's a quick video of it.

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Old 01-29-2013, 11:30 AM   #30
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I'm running the stainless magnaflow downpipe and cat, coupled with a 6" dia magnaflow stainless muffler. Summit matched Amazon's prices on the parts, and after adding a couple of nice stainless band clamps I was somewhere around $200 for the whole setup.

I ended up using a section of my original downpipe as a turn-down, supported by a universal $5 hanger from advance auto parts.

The sound is great, maybe a little loud. If I had to do it again, I'd swap the 6" diameter muffler for a rectangular one to gain a little clearance and reduce the sound a bit. Throttle response improved DRASTICALLY and the jeep did a much better job maintaining speed (especially pulling my pop-up).

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