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Old 08-25-2011, 06:03 AM   #1
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Wink Exhaust parts 2.5 or 3in.

I need some bends you need money lets make this **** happen looking for a couple of 90*s, trying to build downpipe for t3 60trim let me know what you have left over.
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Old 08-25-2011, 09:34 AM   #2
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I bought two 2.5" mild steel J-Bends online for $30 each. I do not think it gets much better than that. I will see if I can find the company.
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Old 08-26-2011, 02:08 AM   #3
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I bought two 2.5" mild steel J-Bends online for $30 each. I do not think it gets much better than that. I will see if I can find the company.
Sounds great!!
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Old 08-26-2011, 09:37 AM   #4
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http://www.mandrel-bends.com/catalog...FQfBKgodrg_rNw

Used to be a sponsor here. I used them for everything to build my V8 exhaust. Good quality, good prices, fast shipping. They have v-bands as well. Nice if building your own DP.
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Old 08-26-2011, 11:02 AM   #5
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Here is a link link to there ebay store witch is where I bought my parts but you can also call them. They are based out of MD and they are a fantastic supplier and great people to work with.
Ebay store-

http://stores.ebay.com/mandrelbendingsolutions

This is the link to their regular web site.

http://www.mandrelbendingsolutions.c...let/StoreFront
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Old 08-26-2011, 11:25 AM   #6
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Quote:
Originally Posted by Stein View Post
http://www.mandrel-bends.com/catalog...FQfBKgodrg_rNw

Used to be a sponsor here. I used them for everything to build my V8 exhaust. Good quality, good prices, fast shipping. They have v-bands as well. Nice if building your own DP.
I have dealt with these guys before too.... fast shipping, etc.

I wasnt exactly pleased with the surface of the tube, but thats pretty standard for the price point.
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Old 08-28-2011, 04:58 PM   #7
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http://www.mandrel-bends.com/catalog...FQfBKgodrg_rNw

Used to be a sponsor here. I used them for everything to build my V8 exhaust. Good quality, good prices, fast shipping. They have v-bands as well. Nice if building your own DP.
What size outer diameter you think I should get for 3in?
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Old 08-28-2011, 08:23 PM   #8
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I'm running a 3" pipe on my NB and i gotta say it rattles everywhere. Fit is...tough.
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Old 08-28-2011, 09:35 PM   #9
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I'm running a 3" pipe on my NB and i gotta say it rattles everywhere. Fit is...tough.

Whats the pipe thickness?
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Old 08-28-2011, 10:03 PM   #10
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Thin cheap stuff. You know the little exhaust cuts from autozone that you can get? Same thickness.

Fit is very tough especially around the differential and that bottom pipe. We had to bang on the pipe and squish it a bit just to give it half an inch of flex room and still hits all the way around top and bottom.

Last edited by triple88a; 08-28-2011 at 10:15 PM.
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Old 08-29-2011, 01:42 PM   #11
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Thin cheap stuff. You know the little exhaust cuts from autozone that you can get? Same thickness.

Fit is very tough especially around the differential and that bottom pipe. We had to bang on the pipe and squish it a bit just to give it half an inch of flex room and still hits all the way around top and bottom.
Should I stay with a 3in or go 2.5in its going to be tough to spool that t3 60 trim?
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Old 08-30-2011, 12:08 AM   #12
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I'd go with a 3" again however i'd do it my self with more care than the local exhaust shop.
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Old 08-30-2011, 12:22 AM   #13
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Quote:
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Fit is very tough especially around the differential and that bottom pipe. We had to bang on the pipe and squish it a bit just to give it half an inch of flex room and still hits all the way around top and bottom.
U R doing it wrong. I have 3" through my subframe/diff and that's with a huge Ford 8.8" diff in there. Zero pipes were dented and zero contact anywhere.

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^^^Would you look at the quality of those joints? Everything was cut with a harbor freight bandsaw, freehand.
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There are five v-bands in the exhaust but it can be assembled without unbolting anything else from the car. The diff piece will fit through the subframe.
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Old 08-30-2011, 12:26 AM   #14
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^Show off

jk like i said if i could do it my self it would have been much better i think.
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Old 08-30-2011, 12:30 AM   #15
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^Show off

jk like i said if i could do it my self it would have been much better i think.
No doubt you could. A shop will never spend the time that you would. I have over 30 hours in building that exhaust.
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Old 08-30-2011, 03:26 PM   #16
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A 3" exhaust will fit no problem in a miata.

If you wanted, a 3.5" would fit with the factory brace as well.
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Old 08-31-2011, 12:07 AM   #17
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No doubt you could. A shop will never spend the time that you would. I have over 30 hours in building that exhaust.
30 hours holy crap man!!!!!!!!!!!!!!!!!
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Old 08-31-2011, 08:15 AM   #18
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Quote:
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No doubt you could. A shop will never spend the time that you would. I have over 30 hours in building that exhaust.
I probably spent 30 on mine. But my welding sucked as I was learning. I took my car to mandrelbendingsolutions that Sean mentioned in this thread and they redid some of my work. Pretty much from my front v-bands all the way back to the tip. Took them about 7 hours but they charged me 5.

It is very similar to yours except I'm running the CTS diff.

V bands after the cats before the Y-pipe, and one right next to the diff like you have. Makes dropping the whole thing a 5 minute affair.
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Old 09-02-2011, 01:01 AM   #19
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this maybe a stupid question but what is od and radius of pipe how is it measured?
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Old 09-02-2011, 01:04 AM   #20
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this maybe a stupid question but what is od and radius of pipe how is it measured?
OD is the Outside Diameter of the pipe.

Radius is what the centerline radius would be. For instance, a 2" OD with a 6" radius would have a 5" inside radius (measured on the very inside of the bend) and a 7" outside radius (measured on the very outside of the bend).
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