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Sourcing: Stock Mp? Mazda Dealer?

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Old 02-17-2005, 10:36 AM
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Right now my car has a pretty new (Only 5k miles probably) STOCK Downpipe. Yes, that means pre-cat! Doh!



Previous owner didn't like the low-end powerloss of a DP. As a result, right now my car runs on a pretty new stock DP, a High-Flow Midpipe (where the main cat is right?), and an M2 Dual exhaust.



As for right now, my car runs perfect 10-8-10 boost patterns. However, despite any power loss down low (and the gain up top), I think I'd rather have an aftermarket DP (Eliminating stock Pre-Cat) on my vehicle...



I don't, however, want to overboost (Creep/Spike). Given my intakes are stock, fuel, ecu, etc. all stock....Wouldn't an aftermarket DP + my High-Flow Midpipe + M2 Dual mean TOO MUCH un-restrictive airflow and cause problems?



So, given that Idea, I have to now buy an aftermarket DP (Eliminating my pre-cat) but I have to source a STOCK midpipe (No elimination or high flow main cat!)...keeping my wonderful sounding M2 dual of course



What do you think I should do? Is there a store that sells the stock spec' MP with Main cat.



Any help is greatly appreciated!
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Old 02-17-2005, 10:49 AM
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Personally, I'd say give it a shot.. but a DP can be a lot of work to undo if it doesn't go right.
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Old 02-17-2005, 11:07 AM
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Originally Posted by Sinful7' date='Feb 17 2005, 12:48 PM
Personally, I'd say give it a shot.. but a DP can be a lot of work to undo if it doesn't go right.



"Give it a shot" is what I leave for those who are willing to risk it and I'd like to think that, from other's mistakes, I can free myself of repeating the same one.



DP a lot of work to undoe? Meaning what? It's a bolt on...if boost go's nuts I can put back on my current set up which runs fine right?
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Old 02-17-2005, 11:19 AM
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find a good used stock main cat, and put a dp in it.
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Old 02-17-2005, 11:37 AM
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Originally Posted by j9fd3s' date='Feb 17 2005, 01:19 PM
find a good used stock main cat, and put a dp in it.



Yea I might buy used.



If I just put on a DP, and kept the high flow MP and Exhaust...do you think I should just hook up a boost controller and set it to 9/10 psi?
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Old 02-17-2005, 11:49 AM
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**** it, just leave it and drive the thing.
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Old 02-17-2005, 12:19 PM
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Originally Posted by PhoenixDownVII' date='Feb 17 2005, 10:07 AM
"Give it a shot" is what I leave for those who are willing to risk it and I'd like to think that, from other's mistakes, I can free myself of repeating the same one.



DP a lot of work to undoe? Meaning what? It's a bolt on...if boost go's nuts I can put back on my current set up which runs fine right?

Meh..



The DP can be a lot of work if you have studs that have sheared off. Especially if they shear off in weird ways like mine did.
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Old 02-17-2005, 01:16 PM
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dont let steve scare you with the dp... the only common thing is the studs will come out with the nut. If you want i have a dp and stock main cat ill let go for 200$
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Old 02-17-2005, 01:36 PM
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I have a Pettit Down pipe less than 5k on it.



125 bucks! shipped
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Old 02-17-2005, 01:39 PM
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Originally Posted by Dumbrotorkid' date='Feb 17 2005, 12:16 PM
dont let steve scare you with the dp... the only common thing is the studs will come out with the nut. If you want i have a dp and stock main cat ill let go for 200$

Whatever, mine sheared off. I had to pull the studs and replace 'em. One of them sheared off in the threaded hole on the turbo. I was lucky enough to be able to thread a bolt in there over it.
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