Finaly made my 2 1/2" exhaust
#1
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I like it. Probably about 14 solid hours of work for an amateur like me. Tubing came from JC whitless, and the muffler is a Hooker Maximum Flow (straight through absorption type) from Jegs. Total cost not counting mig wire and CO2 was about $120.
I don't think the car is any louder than it was with the stock exhaust and no turbo. It has a nice mellow tone and sounds very good, but not obnoxious, at WOT.
Subjectively it seems like turbo spools much faster, and the car is definitely making more power.
![](http://home.comcast.net/~jsteckenberg/exhaust.jpg)
You can see I keep a nice clean shop! It's upside down in the above picture, exit is at the stock location.
![](http://home.comcast.net/~jsteckenberg/exhaust2.jpg)
A side benefit is that the oval muffler doesn't hang down as low as the stock item, so its not as hard to get a jack underneath.
I don't think the car is any louder than it was with the stock exhaust and no turbo. It has a nice mellow tone and sounds very good, but not obnoxious, at WOT.
Subjectively it seems like turbo spools much faster, and the car is definitely making more power.
![](http://home.comcast.net/~jsteckenberg/exhaust.jpg)
You can see I keep a nice clean shop! It's upside down in the above picture, exit is at the stock location.
![](http://home.comcast.net/~jsteckenberg/exhaust2.jpg)
A side benefit is that the oval muffler doesn't hang down as low as the stock item, so its not as hard to get a jack underneath.
#12
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Sorry, I wasn't tryin to be mean..
At least it wasn't flux cored.. I almost guarantee it will work just as good as something that was TIG'd with stainless, just not quite as attractive, but who really cares, its underneath the car anyway.
-Michael-
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-Michael-
#14
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Oooh. Now that hurts. I'm still suffering along with an old $120 Harbor Freight flux-cored welder.
Grind and Paint, baby. That's the secret.![](https://www.miataturbo.net/images/smilies/cool.gif)
Seriously though, nice exhaust. The very first welding project I attempted was a cat-back exhaust system. It worked, but let's just say that after about a month I put the stock one back in.
Grind and Paint, baby. That's the secret.
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Seriously though, nice exhaust. The very first welding project I attempted was a cat-back exhaust system. It worked, but let's just say that after about a month I put the stock one back in.
#17
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Thanks guys, I didn't really have any ambition of making it pretty, getting the job done is good enough for me.
No comment on the cat question, look at the pictures and judge for yourself.
My biggest problem with welding is the fit up of the pipe sections, I always have oversize gaps that I then have to fill in with weld.
I love what this has done for the car though, it will be interesting to see how the muffler wears in.
Next project will probably be IC pipes.
No comment on the cat question, look at the pictures and judge for yourself.
My biggest problem with welding is the fit up of the pipe sections, I always have oversize gaps that I then have to fill in with weld.
I love what this has done for the car though, it will be interesting to see how the muffler wears in.
Next project will probably be IC pipes.
#18
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Well it certainly doesn't look like there is room for a cat, but I couldn't see where your DP ended.. Its tuff to get tube to match up perfectly without fairly precision equipment, and using miter cuts instead of bends will cause that to some extent. If you ever need any tubing let me know, and I'll hook you up.
-Michael-
-Michael-