What muffler should I buy to replace my JBA?

MikeB · 03-22-2008, 11:38 PM

I'm not at all worried if the truck gets quieter, but I don't want to sacrifice performance. So far I have been looking at either the Dynomax 17547 or Magnaflow 12579. What are your thoughts? Any other suggestions?

Would I benefit from a shorter muffler performance wise??

PhxBlue · 03-22-2008, 11:52 PM

Yea i'd like to know what everyone thinks too.

BLOWBYU · 03-24-2008, 08:02 PM

Something about the JBA muffler you all are not liking?

redrocket16 · 03-24-2008, 08:47 PM

i have the fm 40 series and i love them. sounds more aggresive and louder than other titans ive heard in my area. jus my .02. i hear magnaflows are best for performance or the super 44's. i think most are about the same.

PhxBlue · 03-24-2008, 08:52 PM

Yeah the big ole crack my JBA muffler has in it...

MikeB · 03-24-2008, 09:01 PM

Quote:

Originally Posted by PhxBlue

Yeah the big ole crack my JBA muffler has in it...

Mine cracked too.

sudden urge · 03-24-2008, 09:14 PM

Quote:

Originally Posted by MikeB

I'm not at all worried if the truck gets quieter, but I don't want to sacrifice performance. So far I have been looking at either the Dynomax 17547 or Magnaflow 12579. What are your thoughts? Any other suggestions?

Would I benefit from a shorter muffler performance wise??

Just in case I didn't like the sound on the JBA, I looked into a Magnaflow replacement muffler for it. The 12279 5x8x24 would be my choice. The JBA is 29" long overall and the 12279 is 30". The 12579 is about 20% quieter than the 12279, and the length of the muffler won't change the performance.

MikeB · 03-25-2008, 11:16 AM

Quote:

Originally Posted by sudden urge

Just in case I didn't like the sound on the JBA, I looked into a Magnaflow replacement muffler for it. The 12279 5x8x24 would be my choice. The JBA is 29" long overall and the 12279 is 30". The 12579 is about 20% quieter than the 12279, and the length of the muffler won't change the performance.

I called Magnaflow yesterday and asked about the 12579. It has a split core and is intended as more of a factory muffler replacement. It would hamper performance. Then they told me about the 12279. I was able to get one for $79 shipped from Performance Peddler.

Shee Nut · 03-25-2008, 06:05 PM

Quote:

Originally Posted by MikeB

I called Magnaflow yesterday and asked about the 12579. It has a split core and is intended as more of a factory muffler replacement. It would hamper performance. Then they told me about the 12279. I was able to get one for $79 shipped from Performance Peddler.

The 70 series flowmaster is also the same length and pipe diameter as the JBA
muffler.Was a direct replacement for me.
If you would like to hear how it sounds let me know,I'm in Gilbert.
Btw,I think I ran into you at Firebird last time I was out there.

MikeB · 03-26-2008, 08:37 AM

Quote:

Originally Posted by Shee Nut

The 70 series flowmaster is also the same length and pipe diameter as the JBA
muffler.Was a direct replacement for me.
If you would like to hear how it sounds let me know,I'm in Gilbert.
Btw,I think I ran into you at Firebird last time I was out there.

I committed myself to the Magnaflow 24". I started thinking about the family road trips and realized that if I ended up getting a travel trailer the less drone, the better. I'd still like to hear your Flowmaster though. When were you at Firebird last?

PhxBlue · 03-26-2008, 10:02 AM

Are there Titan meets around the Valley?

**roy365** · 03-26-2008, 10:12 AM

Is this not covered under warranty?

I have a slightly used Volant 304 S/S muffler & y-pipe if anyone is interested. Make offers to my PM box if so.

Clancy · 03-26-2008, 10:36 AM

What about a round/straight through magnaflow? - 12646 or 12616? (2.5 in/out) Only $70 on performance peddler. Depending on the length, I'd be willing to bet it has a deeper sound than the stock jba.

I'm putting 2 on my (07/08) stock mid pipes and having some custom tails fab'd...

Jon_UT · 03-26-2008, 12:55 PM

I just ordered this muffler to replace my jba, i'll post a video when i get it installed.

http://store.summitracing.com/partde...5&autoview=sku

Shee Nut · 03-26-2008, 02:54 PM

Quote:

Originally Posted by MikeB

I committed myself to the Magnaflow 24". I started thinking about the family road trips and realized that if I ended up getting a travel trailer the less drone, the better. I'd still like to hear your Flowmaster though. When were you at Firebird last?

I was out there last March. We b.s.'d a couple minutes about your home made CAI. I'm not a stalker,just a good memory

I'm gonna try and make it this friday to firebird,haven't ran yet with any of my mods.