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Roush 421428 Exhaust installed on my 5.0

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Old 03-17-2012, 11:12 PM   #1
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Default Roush 421428 Exhaust installed on my 5.0

Just got done installing the new Roush exhaust on my 5.0. Man this thing is LOUD! Sounds great though. It is very deep, and under acceleration has no drone, but a "thrum thrum" in the cab. You get on it and it literally screams. They don't call this thing a "coyote" for nothing!

It was a pretty easy install. Kind of a pain to get the stock system out in one piece. Had to drop the spare and bend the spare tire heat-shield back just a bit to worm it out. It just bolted right up. Cutting the mid-pipe was the most time consuming part as you need to measure, measure, measure.

You will need a 13mm socket for the two bell connector bolts, 15mm deep well socket for the clamps, a 19mm socket and a 21mm end wrench to loosen the lower spring perch bolt to add the additional hanger the Roush system needs. You will also need a picky wife, or significant other, to tell you when you have the tips lined up.

Here is a quick vid at startup and idle. This does not do the sound justice. It is much deeper at idle.

http://www.youtube.com/watch?v=JDwL0...ature=youtu.be

Here are some install pics:

Stock vs Roush




Stock resonator vs Roush muffler.


Roush midpipe is 61" long. You cut this to fit. I had to cut about 18" to make it fit. So this *should* fit a supercrew with the 6.5" foot bed all the way down to a reg cab.


Bolt on connector:


Next the tail pipe:



Last edited by bskouby; 03-17-2012 at 11:18 PM. Reason: edit pics
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Old 03-17-2012, 11:12 PM   #2
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The rest of my pics:













Last edited by bskouby; 03-17-2012 at 11:15 PM.
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Old 03-18-2012, 12:01 AM   #3
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Great write up! Where did you buy your kit from? I had been told by brenspeed.com they are on backorder?
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Old 03-18-2012, 12:05 AM   #4
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Originally Posted by Stolen 98 View Post
Great write up! Where did you buy your kit from? I had been told by brenspeed.com they are on backorder?
I got it from Stage 3 motorsports. Took a long time to get it. I ordered it about six weeks ago, back before Roush released it. AFAIK, they shipped 10 kits this time and I got one of them. My kit was dropped shipped directly from Roush. Shipped on Thursday, got it today.
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Old 03-18-2012, 12:25 AM   #5
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The roush does sound pretty mean. I'll call B S on having no drone. That tiny muffler and no resonator that thing probably gets pretty loud between 2500-3000.
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Old 03-18-2012, 12:49 AM   #6
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Originally Posted by Joewee3.5 View Post
The roush does sound pretty mean. I'll call B S on having no drone. That tiny muffler and no resonator that thing probably gets pretty loud between 2500-3000.
Oh yeah...it gets loud....VERY LOUD. However, at 60 my truck is turning about 1700 RPM, and at 70 just a tick over 2100. It isn't bad at all, and I know what bad is. I had a 2006 that had true duals, with flowmasters and then magnapacks on it. I know what drone is, and this doesn't have much of it at all. You can lock the cruise in at 60 or 65 and not end up with ringing ears, but you do hear it.

It does have a odd fluttering or thrumming sound when you are lugging the engine...almost gets raspy...but deeper. Sounds mean as hell outside, especially on take off. You get it into the upper RPM band of 4500 + and it is just plain insane loud. I mean....cop attracting loud. It is a mix of raspy, deep, crackly, and everything in between. Just plain mean.

This is not the exhaust for someone that wants a quiet setup....not at all. However, I can say if you are easy, you can sneak into the neighborhood and not wake everyone up (my wife did it tonight). If you keep the revs below 2000 you aren't much louder than any other aftermarket system.

The other thing I noticed is that this system is a true 3" all the way through. The OEM resonator gets choked down to 2.75 or 2.5 at one point. In fact, I could slip the mid-pipe from the Roush system over the outside of the OEM resonator pipe.
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Old 03-18-2012, 10:16 AM   #7
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Nice write-up bskouby! Great pics, as well ... been looking for something like this. And the kit is very friendly in that the muffler can easily be changed out if you want to chnage the sound with another muffler, or even add a true 3" resonator inline with the Roush muffler.

This is my next mod, so, thanks for taking the time to post this.
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Old 03-18-2012, 02:41 PM   #8
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Agreed. Well thought out and executed thread.

Looks and sounds great!

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Old 03-18-2012, 04:23 PM   #9
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Thanks for the great write up. Just think I found the exhaust to put on my truck. Also do you have any video of it on the road?

Last edited by kbass24emtp; 03-18-2012 at 04:27 PM.
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Old 03-18-2012, 04:25 PM   #10
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Originally Posted by kbass24emtp
Thanks for the great write up. Just think I found the exhaust to put on my truck.
Agreed. I need to get online (not on my phone) and see what they are offering for the 6.2L.

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