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Old 06-09-2009, 07:39 PM   #1
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Default budget exhaust?

i remember reading something on the forum about a cheap route to go on a 3" exhaust...if i remember correctly it had something to do with some pre bent 3" SS piping.

i have been searching the forum for a couple hours now and i havnt turned anything up!

now as far as my setup goes i will running a BEGI SG downpipe and a metal core cat! for the cat back i simply want to do a 3" exhaust all the way to the back with no resonators or mufflers!

can anybody give me some leads to go on?
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Old 06-09-2009, 07:43 PM   #2
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just get a mandrel bent 3" pipe made, weld a flange to it that mounts to your downpipe and you're good to go.
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Old 06-09-2009, 07:47 PM   #3
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all the muffler shops that i know of around where i live all use crush benders.......im not willing to put crush bends on my car!
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Old 06-09-2009, 08:59 PM   #4
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dont bother with stainless if you're on a budget. get alumized steel.
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Old 06-09-2009, 09:03 PM   #5
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Heres what I did...bottom of page 1 and top of page 2....

https://www.miataturbo.net/forum/t33438/
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Old 06-09-2009, 09:39 PM   #6
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Quote:
Originally Posted by Cspence View Post
Heres what I did...bottom of page 1 and top of page 2....

https://www.miataturbo.net/forum/t33438/
i like it!
i tried searching for pre bent pipe on ebay......but my search didnt end up to well. what kind of steel did you use for the exhaust?

on a side note, props on all your fab work! looks very very good....and clean.
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Old 06-09-2009, 09:45 PM   #7
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Quote:
Originally Posted by y8s View Post
dont bother with stainless if you're on a budget. get alumized steel.
i dont really have a budget, i just said budget in the title cause it sounds better than cheap! i want stainless because my downpipe is stainless. but the alumized steel can be put into consideration........
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Old 06-09-2009, 09:50 PM   #8
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Quote:
Originally Posted by WonTon View Post
i like it!
i tried searching for pre bent pipe on ebay......but my search didnt end up to well. what kind of steel did you use for the exhaust?

on a side note, props on all your fab work! looks very very good....and clean.
Its just mild steel....Give ebay a few days, something will turn up.... Thanks for the props!
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Old 06-10-2009, 01:15 AM   #9
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Sean.... please step away from the exclamation (!) key...as a matter of fact, just remove the 'shift' key from your keyboard so you will not be tempted to use it.


Summit carries a generic 3" exhaust kit of aluminized steel.... i'll go in on half with you since half the "kit" will probably do one Miata...and you can pick it up directly from them.

FLO-15937 Flowmaster 15937
Flowmaster 15937 - Flowmaster U-Fit Dual Pipe Kits
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Old 06-10-2009, 02:52 AM   #10
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I bought all my mandrel bent pipe from Colombia River (a sponsor on these here boards as a matter of fact...).
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Old 06-10-2009, 02:53 AM   #11
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Or you can support our forum sponser Tube Bending & Fabrication - Columbia River Mandrel Bending

Recieve extra discount
Discount code for Miata turbo members : MT5M
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Old 06-10-2009, 12:45 PM   #12
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Industrial grade 2.5" 16 gauge 304 elbows are fairly cheap (~$15 each from my source), this is what I used to build my exhaust.

This is what they use in food and beverage equipment and is widely available.

16 gauge is a bit thick, but easy to weld and will take a real beating.
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Old 06-10-2009, 02:07 PM   #13
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Interesting, didn't know we had a pipe vendor on here. I'll be looking them up soon...
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Old 06-10-2009, 02:15 PM   #14
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Quote:
Originally Posted by Doppelgänger View Post
Interesting, didn't know we had a pipe vendor on here.
Well maybe if you didn't spend your time correcting people's punctuation use and actually paid attention to the forum you might see these things.
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Old 06-10-2009, 02:57 PM   #15
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Yeah, they are a great supplier, and their shipping is really quick.
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Old 06-10-2009, 05:06 PM   #16
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Mike, ill keep the summit thing in mind.
if i do go the summit route ill be getting mild steel, so that way i can weld it myself.

back of my punctuation! haha

i did look through Columbia River Mandrel Bending but i only looked at there stainless piping.
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Old 06-10-2009, 05:40 PM   #17
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Quote:
Originally Posted by WonTon View Post
...
if i do go the summit route ill be getting mild steel, so that way i can weld it myself....
If you can weld mild steel, why can't you weld stainless?
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Old 06-10-2009, 05:47 PM   #18
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bucause, the welder that i will have access to is set up for mild steel, and its a MIG. if i go stainless i want to TIG weld it but i do not have access to a TIG welder.
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Old 06-10-2009, 08:35 PM   #19
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did you want stainless in the first place? How were you going to weld it that way. Also you can MIG stainless too... just need a back purge
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Old 06-10-2009, 09:16 PM   #20
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Quote:
Originally Posted by WonTon View Post
...i want stainless because my downpipe is stainless...if i do go the summit route ill be getting mild steel
Dude, what exactly is your question?
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