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Old 08-25-2009, 18:17   #1 (permalink)
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Side exit or rear exit exhaust?

I have asked this question on a few different forums, I want y'alls opinion.

I am removing the stock mufflers and adding straight pipes with tips since where my vehicle is registered, it's not illegal. Here's my plan (pics)


I plan to cut them off at the mark, then add the straight pipe and resonator tips.



My question is should they be side exits, or rear exits?

Side exits would be 3" from rear tire on each side, and rear would be below the tag, with about 4 inches on each side.

Give me some input!
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Old 08-25-2009, 18:46   #2 (permalink)
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Re: Side exit or rear exit exhaust?

Either way would work. You'd probably hear it inside the cabin more if it goes out the side. On a long trip it may get irritating. If there's enough clearance below the fender to run it out the side and not be too low.
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Old 08-25-2009, 19:08   #3 (permalink)
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Re: Side exit or rear exit exhaust?

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Originally Posted by rtg143 View Post
Either way would work. You'd probably hear it inside the cabin more if it goes out the side. On a long trip it may get irritating. If there's enough clearance below the fender to run it out the side and not be too low.
Well I don't particularly mind the drone, besides, I am keeping another stock muffler setup so that I can change it on the go. I just need to find out which resonator tips sound good.
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Old 08-25-2009, 19:32   #4 (permalink)
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Re: Side exit or rear exit exhaust?

I had a 63 Lincoln that had resonators in front of the axle and mufflers where yours are. I removed the rear mufflers and installed a straight pipe where the muffler was straight out the back. It sounded great even on the road.
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Old 08-25-2009, 20:10   #5 (permalink)
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Re: Side exit or rear exit exhaust?

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Originally Posted by rtg143 View Post
I had a 63 Lincoln that had resonators in front of the axle and mufflers where yours are. I removed the rear mufflers and installed a straight pipe where the muffler was straight out the back. It sounded great even on the road.
Mine has a resonator directly after my 3rd Cat located in the Y right after the manifolds. Then it's straight back to another Y and it splits off to the dual mufflers.
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Old 08-25-2009, 20:23   #6 (permalink)
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Re: Side exit or rear exit exhaust?

You could cut them off and before you added a resonator tip, see how it sounds. Might be all you need.
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Old 08-25-2009, 20:41   #7 (permalink)
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Re: Side exit or rear exit exhaust?

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Originally Posted by rtg143 View Post
You could cut them off and before you added a resonator tip, see how it sounds. Might be all you need.
Ok, I'm lost, Cut off the cats, or the stock resonator? The future plan is to get some high flow cats, remove the old ones, get a MIL eliminator (or make some) and go from there.
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Old 08-25-2009, 21:05   #8 (permalink)
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Re: Side exit or rear exit exhaust?

No, just the pipes behind the axle where the mufflers are. Per your pictures. Except cut them where the pipe goes into the muffler so you could lengthen the pie to go straight out the back.
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Old 08-25-2009, 21:30   #9 (permalink)
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Re: Side exit or rear exit exhaust?

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Originally Posted by rtg143 View Post
No, just the pipes behind the axle where the mufflers are. Per your pictures. Except cut them where the pipe goes into the muffler so you could lengthen the pie to go straight out the back.
Ok that's probably what I'll do, and I'll custom fab some cutouts in the bumper for the piping and bondo and urethane the cutouts to look stock.
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Old 08-25-2009, 21:36   #10 (permalink)
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Re: Side exit or rear exit exhaust?

You could use the short pipe behind the muffler at the end and leave the body as is, or just run the pipe at a small angle down to below the panel.
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