Jeep Wrangler Forum banner
  • Hey everyone! Enter your ride HERE to be a part of September's Ride of the Month Challenge!
1 - 20 of 38 Posts

·
Registered
Joined
·
613 Posts
Discussion Starter · #1 ·
Hey guys, I have read and researched all the exhaust threads out there and still need some help. I don't understand exactly the layout of the exhaust and the difference between cat backs and etc. I want to upgrade my exhaust on my 1997 I6, I want it louder than it is currently. I definitely don't want one of those loud,annoying exhausts. I just want it deeper and noticeable to make the engine sound better. Thanks
 

·
Registered
Joined
·
8,402 Posts
Cat backs are usually bolt on exhaust systems that replace everything from the cat on back. The other option is to cut the muffler out with a sawall and weld in new muffler.

I went with a Thrush Welded for about $30 and also needed a small section of 2 1/4" exhaust pipe....then 3 welds. :thumb: If you pick up a Thrush Welded (#17651) and took it in to a local exhaust shop to have it installed, I bet the total project would be about $60-$80.
 

·
Registered
Joined
·
1,357 Posts
If you crawl under your jeep and look up into the skid plate you will see two larger items on the exhaust the one closer to the front is the third cat and the on closer to the back is the muffler. In between them in a flange mount. Cat backs will remove everything after the flange mount and replace it.

Headers will replace the exhaust manifolds that connect to the engine.

I have the MBRP cat back and love the sound it makes, deeper growl but not extremely loud and only a small amount of drone at idle.
 

·
Registered
Joined
·
613 Posts
Discussion Starter · #4 ·
Cat backs are usually bolt on exhaust systems that replace everything from the cat on back. The other option is to cut the muffler out with a sawall and weld in new muffler.

I went with a Thrush Welded for about $30 and also needed a small section of 2 1/4" exhaust pipe....then 3 welds. :thumb: If you pick up a Thrush Welded (#17651) and took it in to a local exhaust shop to have it installed, I bet the total project would be about $60-$80.
If you crawl under your jeep and look up into the skid plate you will see two larger items on the exhaust the one closer to the front is the third cat and the on closer to the back is the muffler. In between them in a flange mount. Cat backs will remove everything after the flange mount and replace it.

Headers will replace the exhaust manifolds that connect to the engine.

I have the MBRP cat back and love the sound it makes, deeper growl but not extremely loud and only a small amount of drone at idle.
First of all, thank you for the responses! I dont think I want to replace the headers. Will that effect the sound a lot? I read that cat backs usually cost more than than they should. Also, i cannot weld so would would a thrush weld exhaust and then taken to exhaust shop be the best way to achieve the sound im looking for?

Basically I think I want a louder growl when accelerating and when at idle at little roar and when driving it to be not obnoxious.

Thanks again guys, really want to get this done!
 

·
Registered
Joined
·
1,357 Posts
Yeah any good exhaust shop should be able to weld in a muffler for you. The catbacks are pricey but you'll have a better idea of what you are getting as far as sound goes (generally you'll find more youtube videos and such of cat back systems) I would say get onto youtube and start looking(listening). Make sure you use a decent set of speakers or headphones so you can listen for drone.
 

·
Registered
Joined
·
8,402 Posts
Basically I think I want a louder growl when accelerating and when at idle at little roar and when driving it to be not obnoxious.
I think you pretty much described the Thrush Welded. It has a deep tone but won't be annoying.
 

·
Registered
Joined
·
613 Posts
Discussion Starter · #7 ·
Yeah any good exhaust shop should be able to weld in a muffler for you. The catbacks are pricey but you'll have a better idea of what you are getting as far as sound goes (generally you'll find more youtube videos and such of cat back systems) I would say get onto youtube and start looking(listening). Make sure you use a decent set of speakers or headphones so you can listen for drone.
Just did this and watched several videos. Is a glasspack a good idea? And whats the difference between the exhaust facing out compared to down?
 

·
Registered
Joined
·
822 Posts
Just did this and watched several videos. Is a glasspack a good idea? And whats the difference between the exhaust facing out compared to down?

Down is called a "turn down" and makes the sound resonate off of the pavement, as to where out directs the sound away from you.. Out is the way to go IMO; much less drone..
 

·
Registered
Joined
·
680 Posts
For what it's worth, I had a GMC Canyon with the 5 cylinder, put a MBRP cat-back system on it and it sounded great. When I'm done doing more important things to my TJ, that's what I'm going to buy for mine.
 

·
Registered
Joined
·
8,402 Posts
I have had glass packs before and they sound very Honda ricey and they tend to get louder and louder as the glass burns out. Also they don't really deepen the sound very much.
 

·
Registered
Joined
·
680 Posts
Down is called a "turn down" and makes the sound resonate off of the pavement, as to where out directs the sound away from you.. Out is the way to go IMO; much less drone..
x2.......you'll regret a turndown system. Drone will drive you nuts.
 

·
Registered
Joined
·
3,547 Posts
X2 on the thrush welded. I have one and love it. Best $39 I've ever spent!
 

·
Registered
Joined
·
822 Posts
ps Glasspacks aren't bad from my experience. I had one on my 6 cyl ranger and I liked it, until I got my flowmaster 40 series lol..

*EDIT*

My Glasspack was like 28" long though, and I have heard that the longer the better as far as not sounding "ricey"
 

·
Registered
Joined
·
613 Posts
Discussion Starter · #16 ·

·
Registered
Joined
·
3,547 Posts
tcate23-WRANGLER said:
What about a stainless pipe from the header back with a thrush welded and maybe eliminate the 3rd cat?
Love living where I do! I only have 1 cat.
 
1 - 20 of 38 Posts
Top