Installed a 4" MBRP Exhaust with pics and vids

Installed the 4" MBRP.
Well it took longer than I expected but it's on
and everything is tight.
Drove it into town and not one rattle but I'm checking all
the clamps and clearances later any way.
Fighting the downpipe band clamp took longer than anything.
The factory installed position is in the back so it's hard to get to
and once loosened the ratchet binds into the firewall insulation.

So after trial and error the band clamp kept rotating down instead of up where I could get to it. I made a heavy wire hook that let me pull
it back up over the top. I used my 18V Li-Ion Milwaukee Sawzall
to cut the down pipe off at the bell housing.
Then a cut behind the Walker Big Truck Muffler to remove old system.

Started at the end of the downpipe fitting
pieces together per diagram installation instructions.
Cut the pipe before the muffler delete short about 14".
Started at the tailpipe adjusting and tightening clamps working toward
the front. The downpipe clamp was the last one tightened.

Bent the transmission / passenger floorboard heat shield a little for
clearance issues but not much.

I had dropped the pyrometer sensor fitting down in the engine
fighting the downpipe clamp but luckily found it by the driver's
front tire. Removing the MAP sensor from the top of the A/C
evaporator box made it a lot easier to access the limited space to the downpipe clamp.

Vid of system before removal
7.3 F250 Old Stock System with Walker Big Truck Muffler - YouTube

Exhaust sound before tear-down.
7.3 F250 Walker Big Truck Muffler Sound - YouTube

Out with the old, BTM - Big Truck Muffler by Walker.


Wiping everything down before paint.


Murdered out MBRP


Stock downpipe vs 4" MBRP


Pilot hole for pyrometer fitting


11/64th hole before tapping


Starting the tap


Tight fit


Seated pyrometer fitting


Downpipe and band clamp tightened after entire system under the truck is tight starting from the tailpipe forward


Note band clamp is turned so ya can get to it instead of being against the firewall from factory.
EGT sensor installed, nicked the paint-job, touch up time


Wife shot the after sound vid for me.
7.3 F250 MBRP 4" muffler delete - YouTube

 

Sweet

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Awesome man

Sent from my evo F-350

 

Sounds great man

 

very nice sir, i like the pics

 

Wtf turbo do you have man i can hardly ever hear mine whistle

Sent from my evo F-350

 

Stock Garrett GTP38

 

Hmmmm mine does not sound like that at all

Sent from my evo F-350

 

Straight pipe it man, you'll hear it whistle.

Good lookin set up man! That 4 in will help your egts a buttload. Haven't had mine over 900. I think I need to move my pyrometer sensor right off the down pipe like you, mines about a foot or so down.


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It is straight piped

Sent from my evo F-350