Which ones are knock offs of the 10

 

Actually the 10's are the knock offs. The others were around for almost 2 years before Flowmaster decided to make them.

The difference is Flowmaster used a little bit smaller V inside the muffler and the cheaper ones are not stainless.

They are at the bottom of the page.

http://performance-curve.com/v-floww...ercoating.aspx

 

Simple question, I want a flowmaster super 40 for my XJ. They do make the necessary muffler with the 2.25 center in/2.25 offset out, but what all would I need to install it? would I need an extension? How long? I am looking to just clamp it on btw.

One other thing, I've checked advance auto and flowmaster's website and they both recommend the super 44. what is the major sound difference between the super 44 and the super 40? From what I've hear on Youtube vids the 40 sounds deeper and louder, but you can't always trust the audio quality on those videos

 

I just bought the FM 44 off of http://www.autoanything.com/exhausts...A3965A0A0.aspx . Cheap prices for the most part and usually have free shipping. For the sound difference i think the 44 gives a better sound out overall through idle to running at 70. Its really all personal preference as far as sound goes. The flowmaster website tells you about the sound each muffler produces.

 

Haha it is tiny. But I am a (rear) catless xj and its a bit loud i'm hoping this quiets it down some. And hopefully I didn't overpay! It has a heavy stainless body so i'm really hoping it holds up. Winters in Maine, coupled with my dirt parking spot is rough on my exhaust. I'm sick of rusting out so i'm trying the Random & Borla and see if they live up to the hype. I'm redoing everything from the y pipe back in stainless and v-clamps. Going to redo the manifolds, front cats and y in a few more paychecks. Heres a pic of the inside of the cat, i've had a few pm's about it. It's part # 141-25000 2.5" (the center is 5" around).

 

Just ordered the 10 series for the zj...had to say no to the glass

 

I have a 93 XJ with a 4.0 and 5 speed. I had an exhaust leak in the pipe between the cat and muffler. A few years back, I tried to patch it, but recently, the pipe has now broken all the way through so all the exhaust comes straight out of the cat. I like the way it sounds now, but I can smell the exhaust when I'm idling at a red light. I'm not sure what to do. I'm tempted to redo the entire exhaust from the headers on back, but I'm also cheap and thinking I can somehow just put a pipe on there to hook the original muffler back up. I can't figure out what to do. How do I tell if I need a new cat converter also? I'm also contemplating a flowmaster 40, 10, or the HP-2. I'd like to keep the sound but get the exhaust fumes out of the cabin!!

Also, I live in Knoxville, TN, so no state inspections or anything like that. Any shops you can recommend to help fix this?

 

Does going from 2.25 in tailpipe to 2.50 make a significant improvement in any areas?

 

Has anyone put a Cherry Bomb Extreme on their rig? I was thinking doing a dual exhaust system using this one here:

 

Put one on my buddies 91 with turndowns and it was louder than a regular glasspack. He likes it, I think it would be obnoxious on the road. But that's for you to decide.

 

I hear you have clearance problems with duals...not to mention its kinda pointless on an i6...but to each their own.

 

Yea, I have a little 8-inch CB glass pack at the moment but I really want to do a dual exhaust setup eventually. I'm not so worried about droning. My 18 month old daughter likes it cause she falls asleep 10 minute into a drive. Should I do turndowns on both pipes are run it straight out of the back?

 

Yes, I know it won't help for more power, I want it for looks in that case.

 

If you look on YouTube there's a XJ with the extreme and duals.

 

O ok...than go for it...i actually almost dualled mine out when i first got my jeep, i came from the v8 world and thought it was cool...but got flamed like crazy on here for thinking about it..so i didn't