i have an 18" mag on my 04, i love the way it sounds but wouldnt mind it being a little louder. its pretty quiet at idle but sounds great upon start-up while its warming in the 1200 rpm range. so my question, does anyone have sound clips of 14" mags? i have to decide whether to just hope that after the breakin in (its only 2 weeks old) it gets louder like some guys have said or just upgrade to the 14 if it wont. also is there any hp or tq difference in the two? its si/do with 14"x3.5 tips btw

 

Here are some clips of my 14" Maggie si/do(12158). Its on my 05 4.6L exiting in front of the right rear tire. Tips are 12"x3".
http://www.youtube.com/watch?v=fS4f2Ha1kkI
http://www.youtube.com/watch?v=QURVxMrcbHA

 

How is the 14" maggie 2.5" SIDO for drone, and is is good and loud like a flow 40? Or is it nicer?

 

It has some drone not to noticeable. I have a reg cab and it is side exit in front of rear tire so thats the reason for the drone. After a while, the Flowmaster 40 started to get annoying but it was on a 4.0L. I think it has a nicer tone than the Flowmaster 40 that was on the Sport Trac.

 

hey fiddy...notice any power improvements with the maggie?

 

I have noticed it has a little better throttle responce.

 

Anyone have sound clips of the 18" maggie?

 

When I got my Flow 40 SISO installed they put an 18" Maggie SISO on first to test and it was slightly louder than the STOCK muffler, too quiet for me. I am getting my Flow 40 exchanged for a 14" SIDO (3"/2.5") Maggie tomorrow. The Flow seemed to steal some torque and gas mileage so I am expecting to get it ALL back and MORE. I had my Flow 40 on for 2 months and liked the sound but it did Drone...FYI

 

I am still tossed on which one to go with. I want a good, solid, & mellow sound without the drone and without waking up the neighbors/ pissing off the wife. This is also why I'm not going with the Flow Master I know that they are obnoxiously loud and they rob power. I want good performance mainly.

 

I just had the 18" SISO Magnaflow offset muffler installed today, they just cut the old one off andput this one in its place. I personally like the way it sounds, I havn't been out on the highway/interstate yet with it, but just driving around town, it wasn't really noticeable unless you hit the gas. Now I do seem to have lost some low end torque, and really cannot say anything yet about MPG.

 

You lost low end torque? Have others had this same complaint? I'm getting ready to upgrade my exhaust but don't want to lose any low end torque.

 

Yikes...my 18" Magnaflow should be here today...I hope I don't lose any lowend.

 

Hey let us know what you think when it's all done. I've been wondering what sound level is like on the 14" Maggie vs. the 40 Series Flowmaster. Are the sound levels comparable, or is the Maggie quieter?

 

I'll be replacing an IMCO Pro series SI/DO with a 14" SI/DO Maggie sometime this week... I'll let you know how it turns out sound and performance wise.

 

im going to put a 4x9x14 maggie on this summer and id love to hear it on a 5.4. ive looked for clips everywhere including exhaustclips but theres none on a 5.4