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ylomnstr
Dodge Dakota
JOIN HERE
2/27/2006
07:42:16
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 Subject: Stock exhaust pipe size on '98 dak?
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I'm looking to replace the muffler on my 98 dakota 5.2 4x4. Does anyone know what inlet and outlet I should have on the muffler? I was going to go with a 3" inlet and outlet. Is the stock pipe that goes into the stock muffler 2.5" or 3"?
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daffydak
GenIII
2/27/2006
11:00:35
| RE: Stock exhaust pipe size on '98 dak?
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Both my 98 and my 00 had 2.5" exhaust. The 98 was a 3.9, and the 00 is a 4.7.
Hope that helps...
Dan
MOPAR=More Power!!
00 CC Sport Plus 4.7L 4X4 Auto, 3:55 LSD
Straight dual catack exhaust, adjusted tps to .76V, ported TB, home brew intake setup w/K&N filter, Superchips 3715 Tuner, 180* T-stat... more mods to come!!!
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prodak
Dodge Dakota
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2/27/2006
14:11:46
| RE: Stock exhaust pipe size on '98 dak?
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Unless you spend a serious amount of time above 3000 rpm, be careful going to 3", especially if your internals are stock (3" single on my LA 360 killed the low end - went back down to 2.5", much better now).
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GraphiteDak
GenIII
2/27/2006
14:40:38
| RE: Stock exhaust pipe size on '98 dak?
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Mine was 2.5" stock on my 2003 4.7
Now I have DUAL 2.5" pipes. Thought I'd experience a loss of grunt but I don't think I lost a single ounce of bottom end and gained some top end.
As long as you maintain good flow...
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prodak
Dodge Dakota
JOIN HERE
2/27/2006
23:22:40
| RE: Stock exhaust pipe size on '98 dak?
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Message:
A properly tuned dual 2.5" will maintain better low/midrange velocity than a single 3" (especially with an X-pipe) - remember, each cylinder bank is mainly seeing the pipe diameter, and exhaust pulses only come one at a time regardless of how many pipes you've got.
If it were me I'd just swap in a better flowing muffler and be done with it. Duals on a stock(I'm assuming) 5.2L 4x4 seems like overkill to me, but what do I know.
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