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Old 08-27-2003, 03:02 PM   #1
panman91
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Default What is the diameter of the 04 STi muffler and the prodrive muffler?

which one would you get.
both are about the same price brand new.
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Old 08-27-2003, 03:08 PM   #2
Unabomber
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STi is quieter and will give less HP.
Prodrive all the way.

<~~~~~~~~~Prodrive owner.
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Old 08-27-2003, 03:41 PM   #3
QA Guy
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Another vote for the Prodrive here
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Old 08-27-2003, 03:46 PM   #4
panman91
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which one has the bigger diameter.
i have a txs stealth exhaust right now which ends in 3".
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Old 08-27-2003, 03:54 PM   #5
stimpy
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Are you talking about the inside diameter or the tip diameter?

-Jon
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Old 08-27-2003, 03:58 PM   #6
panman91
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Quote:
Originally posted by stimpy
Are you talking about the inside diameter or the tip diameter?

-Jon
inside diameter. i could care less about the tip diameter.
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Old 08-27-2003, 04:00 PM   #7
OedipusWRX
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Default 3" stealth?

Have they changed the design of the Stealth exhaust? I have the Turbo XS Stealth, and mine ends in a 2.5" section. I have the Prodrive muffler with it, and it is 2.5" as well.

By the way, my vote is for the Prodrive. Great sound and not too loud. it is not the freest flowing unit out there though.
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Old 08-27-2003, 04:05 PM   #8
Red Rocket
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Quote:
Originally posted by panman91


inside diameter. i could care less about the tip diameter.
I just took mine off to sell it (it's available BTW). The piping is 60.5 mm OD, or nearly 2.5". It does not neck down like WRX muffler. Also, the midpipe resonator is slightly larger. The canister looks to be stainless steel, and it has a nice shiny tip. The muffler itself is a large ID straight through design, looks to be about 65mm ID?

Kevin
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