Need Magnaflow part # itself muffler...
For my F150 FX4 2004 Super screw 5.4L:


I want to order Magnaflow cat back system w/ Dual straight out back and dislike the side dual out.

i just learned that #15827 has a bit more rumble and sounds than #15834.

I want #15827 but dislike side dual out..

I checked some info thru few website and found out that these 2 parts # has the same size muffler itself 5x8x18 oval.

so i wonder if these 2 parts # use the SAME type of muffler?

If no, whats muffler part # that came with 15827 part # ? so i can have a muffler shop to do the tail pipe jobs (duall out straight)

Thank you!
YOMAN!

 

YO,
Magnaflow Technical support: 1-800-959-9226 ext. 4500. I would give them a ring.

 

Geez...why didnt i think of that one big thanks! YOMAN!

 

If you do have a muffler shop do the tail pipes, make SURE they use mandrel bent pipes. The old crush bent pipes will defeat the purpose of putting a better flowing muffler on. I speak from experience. Still trying to save up money to fix what the muffler shop messed up...Kevin
BTW I'm gonna do the 15834 magnaflow on mine. Most muffler shops crush bend everything they bend, including the intermediate pipe that runs from the y to the muffler. everything in the MagnaFlow kits are mandrel bent.

 

Yeah good point...i guess i ll stick with 15834 then..

Thanks!
YOMAN!

 

I got my Magnaflow 15834 from Hottexhaust for $384.00 to the door. There was a coupon for 20% off mentioned in another thread in the exhaust forum on this site. I don't know if it is still good. Hope it helps somebody else get a good price. See the following link for information. https://www.f150online.com/forums/sh...hreadid=181456

P. S. There is an application note on Magnaflow's website that states the 15834 system may not fit 2004 F150s built after May 31, 2004.

 

The coupon is still good on hottexhaust.com. Just ordered mine a minute ago...Kevin

 

I couldnt find the code to apply in the box by their website...i do have code coupon...but where to sign up in their website??

Thanks!
YOMANQ

 

Never mind i found it...it still work..

YOMAN!

 

I'm glad to hear the code still works. I thought that was a hella good deal.

 

I also just ordered the Magnaflow 15834 for my '04 Screw from Hottexhaust @ $383.88 incl. free shipping.

Their price is the best I've found anywhere.