Anyone happen to know what the input and output diameter is on the TJ muffler with a 4.0? I want to get a flowmaster and I need to get my ducks in a row.

2.25" I/O last time i checked

Sweet! Thanks. :D

Anyone happen to know what the input and output diameter is on the TJ muffler with a 4.0? I want to get a flowmaster and I need to get my ducks in a row. Not sure of the in out size, but a good one to get is the 50 series, Im not sure if you heard mine on the last chance run when i met you, but I have a 50 series on mine, Not too loud, can barely here it going down the road but a nice deep throat to it..

Not sure of the in out size, but a good one to get is the 50 series, Im not sure if you heard mine on the last chance run when i met you, but I have a 50 series on mine, Not too loud, can barely here it going down the road but a nice deep throat to it..

Thanks for the info. I like the way yours sounded. I just order the 40 series deltaflow. Should be loud, just the way I like it! :thumbs_up :D

im thinking about getting a 40 series...whered you get ures and how much?

im thinking about getting a 40 series...whered you get ures and how much?


I ordered from Flowmaster (http://www.flowmastermufflers.com) direct. They have a borchure in PDF form. It list all the veichles and then what mufflers work on those. Total price was $127.99 with shipping and tax.

I ordered from Flowmaster (http://www.flowmastermufflers.com) direct. They have a borchure in PDF form. It list all the veichles and then what mufflers work on those. Total price was $127.99 with shipping and tax.
I guess i didnt make out too bad, mine was $145 installed at the muffler shop, Ryan, If you need a good muffler shop in lancster, D&D are great people, 10th west between L and M

I guess i didnt make out too bad, mine was $145 installed at the muffler shop, Ryan, If you need a good muffler shop in lancster, D&D are great people, 10th west between L and M

Thanks for the info ED. I think I am gonna throw this one on though. I did the whole exhaust a while back from headers all the way back and the muffler seemed to be the easiest. The there's the thought of someone wrenching on my jeep. :eek:

Well only took an hour to swap mufflers out and I like it! Sounds deeper than what I had. I used to have more of a ricer sound. If anyone knows what 5150's jeep sounds like it really close to that. Seems to have a few more horses too.

Well only took an hour to swap mufflers out and I like it! Sounds deeper than what I had. I used to have more of a ricer sound. If anyone knows what 5150's jeep sounds like it really close to that. Seems to have a few more horses too.
Well when we meet up again I will have to check out the sound, I was thinking back and forth between the 40 and 50 and decided on the 50 and am happy with it, It may have been a mental thing, but mine seemed to have a little more pep after putting it on..

i got my super 40 from performance peddler on ebay and the total shipped was 77 shipped. Today day i decided to cut my exhaust off from the cat back....and WOW i loooovee the straight pipe sound....so sweet. so you people with the super 40, how does the sound compare to the straight pipe sound...i really love the straight pipe but i need some sort of muffler so id like a comparison. thanks guys

i got my super 40 from performance peddler on ebay and the total shipped was 77 shipped. Today day i decided to cut my exhaust off from the cat back....and WOW i loooovee the straight pipe sound....so sweet. so you people with the super 40, how does the sound compare to the straight pipe sound...i really love the straight pipe but i need some sort of muffler so id like a comparison. thanks guys

Yeah I got screwed on the price. Summit would have even been cheaper. I don't know how my jeep would sound with a straight pipe but I love my 40. It almost sounds like it growls. A low mean growl. :) Really makes for a bad a$$ Jeep!

Yeah I got screwed on the price. Summit would have even been cheaper. I don't know how my jeep would sound with a straight pipe but I love my 40. It almost sounds like it growls. A low mean growl. :) Really makes for a bad a$$ Jeep!



mmm alright then, im pretty sure ill like it. Does it drone at all? at like 2k RPMs the straight pipe has a slight drone at around 2k...

Yeah I got screwed on the price. Summit would have even been cheaper. I don't know how my jeep would sound with a straight pipe but I love my 40. It almost sounds like it growls. A low mean growl. :) Really makes for a bad a$$ Jeep!


A guy i worked with had a cat then a straight pipe all the way out the back, the best example of what is sounded like was a john deere tractor

mmm alright then, im pretty sure ill like it. Does it drone at all? at like 2k RPMs the straight pipe has a slight drone at around 2k...

Not sure what drone means? :confused:

Not sure what drone means? :confused:



sorta like a higher pitched humming sound....

I guess you would say it is higher pitched at higher rpm's. But @ about the two thousand range it's nice and low. Keep in mind I have a header also.

I guess you would say it is higher pitched at higher rpm's. But @ about the two thousand range it's nice and low. Keep in mind I have a header also.



alright i see...well i got it on, and it is definately quieter than a straight pipe, its quieter by far. But it still sounds nice, like you said earlier a nice low growl. :)

That low growl is awesome isn't it!?!