Go Back  Miata Turbo Forum - Boost cars, acquire cats. > Performance & Tuning > Prefabbed Turbo Kits
Reload this Page >

Fabricating or modifying a Mazdaspeed tubular downpipe.

Prefabbed Turbo Kits A place to discuss prefabricated turbo kits on the market
Sponsored by:
Sponsored by:

Fabricating or modifying a Mazdaspeed tubular downpipe.

 
Old 02-19-2009, 11:42 PM
  #1  
Senior Member
Thread Starter
iTrader: (11)
 
Join Date: Sep 2007
Location: Killen, AL, 35645
Posts: 752
Total Cats: 2
Default Fabricating or modifying a Mazdaspeed tubular downpipe.

So anywayz, as most people I am in the process of installing a Mazdaspeed Turbo Kit on my 99 10th Anniversary. Well what I know so far has been totally helpful, but I am aware that the downpipe is incompatible with the 99-2005 midpipes.

I know a guy who has a downpipe for sale minus the cat. How difficult is it to modify the downpipe to fit with the 99-2005 midpipes? Is it just a matter of flange rotation or shortening. I've talked to BEGI and if it comes down to it, they can fabricate me a custom downpipe that is right on...for a little for money that is

2nd, does anybody know what fittings I can use on the IHI Turbo. From the factory they use banjo fittings and i'll prolly just use barbed fittings (like the BEGI S series) to run the water lines and oil lines. If the threads are the same as the Garrett Turbos, then I shouldn't have much trouble there. Thanks!
Cody Strife is offline  
Old 02-20-2009, 03:33 PM
  #2  
Junior Member
iTrader: (1)
 
Join Date: Oct 2007
Location: San Diego, Ca
Posts: 209
Total Cats: -1
Default

the triangle flange off the the turbo turn-down will bold right up to 99-05 downpipes, at a bare minimum, 99-00 downpipes. also, I should put my setup in my sig. Im running MSM stuff on my 2000. you can use your stock downpipe until you want to upgrade, I just had my MSM downpipe cut and had a stainless 2.5 back with no cat, for 100 bucks at a muffler shop. though, i brought in my own 4 foot section of 2.5 stainless that bought for ten bucks in the scrap section of metal supply store. some of my pipes are mild, but only for the easy bends around the diff.

oh, and for the fitting, I had AbeFM hook me up and make custom banjo fittings, But since he probably wont do it again for free, just get the banjo bolts from the dealer. The guy I bought setup from gave me the banjo fittings, just not the bolts, and I believe auto zone carries the fittings, the good thing is you can use SAE banjo fittings on your metric bolts as long as its close and you use good crush washers, I used a couple 'not perfect' banjo's and they work just fine with copper washers. never had a leak.
TeamPLUR is offline  
Old 02-20-2009, 03:49 PM
  #3  
Senior Member
Thread Starter
iTrader: (11)
 
Join Date: Sep 2007
Location: Killen, AL, 35645
Posts: 752
Total Cats: 2
Default

Dude are you serious?! The factory 99-2000 downpipe will bolt right up? Well what about clearance issues, will it all work together? MSM Turbo, downpipe,midpipe, exhaust.
Cody Strife is offline  
Old 02-20-2009, 04:07 PM
  #4  
Elite Member
iTrader: (8)
 
Join Date: Oct 2007
Location: Dallas
Posts: 1,830
Total Cats: 0
Default

I don't know about that. But If you are trying to use your stock exhaust, even if they don't bolt up. Just go to a getto muffler shop and bargen with them. They will make it work cheap. I's say <$45.
Toddcod is offline  
Old 02-20-2009, 05:06 PM
  #5  
Junior Member
iTrader: (1)
 
Join Date: Oct 2007
Location: San Diego, Ca
Posts: 209
Total Cats: -1
Default

Originally Posted by Cody Strife View Post
Dude are you serious?! The factory 99-2000 downpipe will bolt right up? Well what about clearance issues, will it all work together? MSM Turbo, downpipe,midpipe, exhaust.
The triangle off the outlet gets like 2mm away from the trans-bell housing, but the exhaust brace still bolts up. tho Todd is right, you shouldn't really use your factory exhaust, maybe the DP but if you do, at least replace the factory stuff with glasspacks or something.
and about using all the msm stuff, i dont see why it wouldnt work, but i couldnt tell you because ive never tried.
TeamPLUR is offline  
Old 02-20-2009, 07:51 PM
  #6  
Senior Member
Thread Starter
iTrader: (11)
 
Join Date: Sep 2007
Location: Killen, AL, 35645
Posts: 752
Total Cats: 2
Default

Hahaha, this is where I realize there is no cheap way out of my crisis...

Looks like the driverside headlight on the 99-2000 is incompatible with the driverside charge pipe, as the back of the headlight covers the hole that is cut in the chassis...
Cody Strife is offline  
Old 02-22-2009, 04:47 PM
  #7  
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,101
Total Cats: 368
Default

my sister has an msm midpipe and rb muffler for sale if you want it.
hustler is offline  
Old 04-23-2009, 10:03 PM
  #8  
Senior Member
iTrader: (3)
 
Join Date: May 2008
Location: Fargo, ND
Posts: 533
Total Cats: 3
Default

Originally Posted by TeamPLUR View Post
The triangle off the outlet gets like 2mm away from the trans-bell housing, but the exhaust brace still bolts up. tho Todd is right, you shouldn't really use your factory exhaust, maybe the DP but if you do, at least replace the factory stuff with glasspacks or something.
and about using all the msm stuff, i dont see why it wouldnt work, but i couldnt tell you because ive never tried.
Hey man, when did you finish all that Jazz anyway? Never heard back about the finish.

Sorry bout the banjo's I think I still needed them for my upgraded turbo on my car, most likely.

Did you actually use the stock IC you got from me, or get an E to the Bay one? I really like the mishimoto IC personally, better product and looks better.
chance91 is offline  
Old 04-24-2009, 11:20 AM
  #9  
Senior Member
iTrader: (1)
 
Join Date: Sep 2006
Posts: 747
Total Cats: 104
Default

If you use a complete MSM exhaust system from turbo to tailpipe, it'll work.
Keith@FM is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
Quinn
Cars for sale/trade
6
10-23-2016 07:58 AM
Frank_and_Beans
Supercharger Discussion
13
09-12-2016 08:17 PM
Voltwings
Cars for sale/trade
0
09-27-2015 06:40 PM


Thread Tools
Search this Thread
Quick Reply: Fabricating or modifying a Mazdaspeed tubular downpipe.


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.