Well the mufflers vary in size. It all depends on what sound you want.

 

Magnaflow is what I have and I am very pleased with the sound of it, there is a picture on my gallery how i have it coming out the back. Definitely jut by the muffler, I found a shop to put mine on for $30.

 

I'd buy the muffler from the shop and have them install it. Do you bring your own food to someone else's barbecue?

Just ask them for the biggest one they got and have 'em put in a turndown. It'll be deep, and you'll hear it in the cab.

EDIT: Mine ran $140 installed with tax, but I went with a reputable shop I'd done business with before. I could've found it cheaper, no doubt.

 

oy,
just put mine in today, damn it is really deep.
and its pretty loud in the cab.

 

get a 40 series... the universal one (that i have) is not all that loud, gibson beats the crap out of the loudness, at 2 grand it sounds sick as hell, its real deep and its that agressive kind of cruising that i like alot. if your up for a good deep LOUD noise go with the 40 series, if you want a deep sound that doesnt disturb to much peace, go with the universal one. You will need a pipe if you install it, the muffler is about 6 or so inches shorter then the stock one, it has been a while since i have had a stock muffler and seen the two next to eachother, but from what i rember it was a good 6 inches or so. I just bought mine off the muffler shop, look at the magnaflow website and see a local dealer near you, then just go there. Or some people ebay it. have fun, pm me if youhave questions.

 

i got a universal one. i paid $100 which included installation and new piping from the muffler back. and the pipe is 2-1/2 inch. i like the way it sounds. has a nice popping sound at high revs! i set off alrams left and right with this thing.

 

My Magnaflow is a 2.5 inch 5"X8" oval aluminized universal part number 12286. I got it through my muffler shop that put it on with a mandrel bent 2.5 inch catback they made for me for $150. I like it.

 

How does Magnaflow compare to Dynomax ... I'm running and UltraFlow right now ?

 

When they did my cat back, we tried a Dynomax, a 50 series Flowmaster, a smaller Magnaflow, and the large Magnaflow. The Dynomax turbo muffler sounded real rice. The Flowmaster and the small Magnaflow were too loud and resonated in the cab too much. The larger Magnaflow (#12286) sounded the best to me. We found the tip makes a difference in sound as well.
Dave

 

I just installed the #12225 Magna Flow on my truck, it sounds good and helped out the mid range power too.

 

are a lot of you guys just buying the muffler? or the complete setup?

 

Getting just the muffler is the way to go. Your stock piping will last a long time. Also, it's much deeper if you get a turn down anyway, but the drawback is you hear it more in the cab.

 

Yes I kept the stock tail pipe, Gadget suggested to stay with the 2 1/4" exhaust to keep the velocity up.

 

I've got a 5X8 oval Magnaflow XL stainless on mine, and i kept the stock tail pipe, I ran it a day or tow without it, man it was way to loud in the cab. got mine for right at about $60 ($75 after shipping) love it now, it sounds great, good tone , and plenty of volume but not too much.

 

So I could have had a MagnoFlow on my ride for less that 150 for the longest time and here I am moping because the complete is like 375?!?!

 

anyone know the HP gain with the magnaflow 5x8 oval muffler (the universal one #12286)

 

Has anyone else noticed with their magnaflow if the volume changed after the truck warmed up and some heat built up in the muffler. it seemes like after i get the truck warmed up and drive for 10 min. or so that the exaust gets louder. this isn't really a complaint, more just somthing i noticed.

 

Tam, you can get it for $120.00ish, check around before you buy. Magna Flow has a dealer locator on their site.

 

Is there any real differences between the oval and round and whatever that other one is? I was just thinking about getting the oval stock sized openings..

?

 

Okay, I need Exhaust and so does my Dad. I don't care about sound as much as he does but I don't want to hear it all the time. Here's my Question; Who here knows best HP gain with Little noise? I've got an 01' v6 and he's got an 03' v6. Thanks in advance for the help.

 

Is there any real differences between the oval and round and whatever that other one is? I was just thinking about getting the oval stock sized openings..

?

bump? Is there a certain length muffler to go with the stock piping? Does it matter if it's offset or centerset or whateverset?

Thanks in advance!

 

the 14" muffler will give more of a louder and have a grunt to it. the 18" will be smooth, deep and mellow. use center in and offset out.