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aggie98
Dodge Dakota
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2/13/2003
15:24:58
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 Subject: MBRP Help
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Message:
Ok guys, I have a '03 Ram QC with the 4.7. I currently have a 70 series flow with dual 2.25 pipes. Heres my question. i hate the sound or the flow, sounds muffled which i think the 2.25 pipes may be too small. Anyway, Im getting a MBRP muff, but should I a) get the single in single out and go back to a 3" tailpipe like stock or b) get the mbrp single in dual out and replace with 2.5 in pipes. Ive heard that the 4.7 does a lot better flow wise with the si/so. Any advice?
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b1llyw
DakotaEnthusiast
2/13/2003
15:28:00
|  RE: MBRP Help
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Message:
I run an MBRP Super Single on my '02. 2.5" in and out muffler. Sounds great and I made 196 hp/272tq on the dyno. IMHO, the 4.7 likes backpressure. A single in dual/out muffler will hurt your low end torque in the absence of other mods (pcm,cams, etc.).
Bill White
2002 QC 4x4, SLT , 4.7, 5 spd, 3.92 LSD
1995 CC 4x2, SLT, 318, 5 spd, 3.55 LSD
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Selcher
Dodge Dakota
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2/13/2003
15:32:35
| RE: MBRP Help
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Message:
I just installed the MBRP Split Duals this past weekend and I noticed a gain in off-the-line power and the sound is beyond awesome. Like b1llyw said though, the 4.7L is known to like back pressue so unless you have intake and cams done possibly the single in/single out 3" set up would be best? You should give Jonas at Premier Automotive a call, he'll be able to offer some advice and his prices can't be beat.
Regards,
Aaron
'02 4.7L CC 4x4 - Cold Air Intake, H.O. Cams, MBRP Split Duals
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aggie98
Dodge Dakota
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2/13/2003
15:40:57
| RE: MBRP Help
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Message:
Do you guys know if you have the 14" or the 20" muff? Do yours drone in the cab at all?
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Selcher
Dodge Dakota
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2/13/2003
16:08:23
| RE: MBRP Help
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The one that came with the kit is the 14". No droning at all, in fact it's not all that loud in the cab. Not nearly as loud as I thought it was going to be. Apparently it's fairly loud outside when I'm driving away, but I wouldn't know as I'm the only one who drives Trigger.
Regards,
Aaron
'02 4.7L CC 4x4 - Cold Air Intake, H.O. Cams, MBRP Split Duals
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aggie98
Dodge Dakota
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2/13/2003
16:09:55
| RE: MBRP Help
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so i had a 40 series on my old 95 ram with the 360 and the drone inside was loud as hell. Dont know if youve ever heard a 40 on the inside. So the 14" doesnt drone at all or not THAT bad?
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Selcher
Dodge Dakota
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2/13/2003
16:22:25
| RE: MBRP Help
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Message:
No droning at all. The exhaust itself isn't all that loud in the cab is what I meant.
Regards,
Aaron
'02 4.7L CC 4x4 - Cold Air Intake, H.O. Cams, MBRP Split Duals
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