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Old 09-27-2011, 06:39 PM   #91
naegerter
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Quote:
Originally Posted by sleighman View Post
Resonator is #2 one its under the center console area. Its a straight through design but I could tell a huge difference in sound without it. Before it was put back on I looked at it closely and it just had baffles and packing in it. I guess it just causes exhaust gas turbulence to help with back pressure and sound deading. I would suggest leaving it on and just replacing the rear. I was a little nervous when the body shop cut out the rear areas. I actually had them order a lower black diffuser which they returned without charge just incase they messed it up. The black lower diffuser was $101.00 but thankfully they didn't mess it up.
Under the center console? I considered that muffler #1 was the one directly underneath the center console. Here are pictures to refer to for what I am talking about. Thanks btw for all the help and information!

Also, I'm assuming that you simply removed Muffler #2 all together?

Images are oriented as if you're underneath the engine and looking towards the back of the car.



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Old 09-27-2011, 08:36 PM   #92
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naegerter
good pics,

I removed muffler #1 and left muffler #2 alone.

The owner of the shop where I had the exhaust done who has 30+ year of experience advised to leave #2 alone. Notice how the pipping flares out for #2. I was told that #2 was only there to kill the audio drone that would get into the interior and there was no gain in flow by removing it.

Since I did take out #1 and there was no audio drone heard in the interior even at 100 plus I beleive he is correct.

If this was my car I would not have put muffler #1 back on. The car sounded great. It was a little loud for the wife. The exhaust has a very nice mellow boxer engine sound with just the rear being replaced.

If you look at the Ford racing single exit set up it eliminates #1,#2 and has a small #3.

I hope that helps.

I spoke with the muffler shop and was advised that you could play with changing out #1 after changing #3. Mainly to change the sound level. The exhaust is pretty straight through.
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Old 09-27-2011, 08:41 PM   #93
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Originally Posted by sleighman View Post
naegerter
good pics,

I removed muffler #1 and left muffler #2 alone.

The owner of the shop where I had the exhaust done who has 30+ year of experience advised to leave #2 alone. Notice how the pipping flares out for #2. I was told that #2 was only there to kill the audio drone that would get into the interior and there was no gain in flow by removing it.

Since I did take out #1 and there was no audio drone heard in the interior even at 100 plus I beleive he is correct.

If this was my car I would not have put muffler #1 back on. The car sounded great. It was a little loud for the wife. The exhaust has a very nice mellow boxer engine sound with just the rear being replaced.

If you look at the Ford racing single exit set up it eliminates #1,#2 and has a small #3.

I hope that helps.

I spoke with the muffler shop and was advised that you could play with changing out #1 after changing #3. Mainly to change the sound level. The exhaust is pretty straight through.
It most certainly did! Thank you so much! I plan on doing this with my hatch in the coming weeks.
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Old 09-27-2011, 10:12 PM   #94
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What muffler are you going with? Are you going to do it my way or a center tip setup?

I look forward to pics.
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Old 09-27-2011, 10:24 PM   #95
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The same Borla muffler as you (#40477). I was going to wait for Borla to come out with a complete catback system for the Focus, but when I saw what you did with a Borla muffler I just fell in love. Plus complete system probably wouldn't look as neat and finished as what you did with the bumper cut outs.
That also answered your second question; I'm going with your setup because I love the dual exhaust look over the center tip (like what's on the Focus ST).

I will definitely be posting pics as soon as I get it done!

The only thing I'm still debating about is whether to keep the resonator or not. I'm just worried about drone on the highway when going down to Austin in Novemeber.
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Old 09-27-2011, 10:38 PM   #96
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Leave it on for now. The installer will not have to remove any of that pipping. They will cut it off at the old muffler. Then you can always get it removed later. That is what I should have done.

If you look at the old muffler body you can see a buldge on the left side where another pipe could come out. Looks to me Ford could have done this very cheaply. Look at the competition like the Chevy Cuse LTZ it has duals, the new Chevy Sonic sedan has duals. It makes no sense.

I just came back from the store a few minutes ago and I drove it with the windows down and shifted it all the way and it sounds very nice. The way it should have been stock.
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Old 09-27-2011, 11:03 PM   #97
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Also on the bumper cut outs. Make you own template and mark the area.

I took a 8 1/2 x 11 sheet of paper and folded it in half to make it 5 1/2 X 8, I then placed the tip about 2" from the top edge and centered on the 5 1/2" width and traced around the tip. I then cut out the circle in the middle and left all of the white on the outside of the line. Next take the Tip and place it through the paper hole and think about the size of the half circle you want to create. Now place a aprox mark about 3/4 of an inch above the tip. Next remove the tip and find a bowl or small dish and line it up with the line and make your half arch above tip cut out in line with your mark.

Now cut on that line. Now useing that as your template go to the rear bumper and find the area that you want to mark for the cut outs. I did the passenger side first since it has a little grove already. Fold the area where the exhaust tip hole is in half so for reference so you know where half the cirle is. Now use some tape and measure and tape the template to the rear diffuser. The half circle mark will help you figure how the welded tip will set up into the cut out. I used 3/4" gap so the tip would not melt the plastic.

Now using a white or yellow crayon mark the cut out area. I would do this so maybe the body shop will not screw it up.

Look at the picture. I could have come up a little more. I think a 1/4" to 1/2 higher would have been fine. You will have to pay attention to the diffuser supports when making you alignment.
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Old 09-27-2011, 11:15 PM   #98
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I just thought of something else.

When you have the muffler welded up tell the welder that the Borla is 1/2 inch thicker than the stock one so make sure he hangs it 1/2" closer to the heat shield so its tuck up as close as it can be without being a problem.

Last edited by sleighman; 09-28-2011 at 11:20 PM.
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Old 09-28-2011, 01:47 PM   #99
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hi i like your setup do u have any video of it driving around town, also on the freeway it sounds great. will this void the warrenty.
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Old 09-28-2011, 03:21 PM   #100
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I tried to do the moving one but I could not get a good recording.

Warranty stuff has been asked and answer by others here. No was the answer.

On the freeway it sounds pretty mellow. No audio drone at all. The only time you really hear it have a rumble is when its idling. The rest of the time it sounds like a cross between a WRX boxer and a Infiniti G35.

I will try to get another recording.
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