MBRP exhaust is 3" (kinda) 4.7/5.7 - Jeep Commander Forums: Jeep Commander Forum
Exhaust Questions or advice about exhaust systems? This is the place...

 
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post #1 of 4 (permalink) Old 09-26-2011, 09:54 AM Thread Starter
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MBRP exhaust is 3" (kinda) 4.7/5.7

So after calling MBRP and being told that their system is 2.5, and me not believeing them, I had my distributor check for me.. Turns out the exhaust is 3" but the dual wall tip reduces down to 2 7/8".. The exhaust is a bit loud for me so I am installing a second magnaflow muffler with custom resonated exhaust tip shortly.. Figured I would post up this info since I had a hard time finding it.. I dont know why anyone would make a 2.5 exhaust for this vehicle including magnaflow, the point is to gain power not lose it...
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post #2 of 4 (permalink) Old 09-26-2011, 10:12 AM
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nice write up thanks

2006 jeep commander many mods.
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post #3 of 4 (permalink) Old 09-27-2011, 07:58 AM
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[QUOTE=I dont know why anyone would make a 2.5 exhaust for this vehicle including magnaflow, the point is to gain power not lose it...[/QUOTE]


Probably has to do with backpressure. I'm pretty sure they tried the 3" as well. They dyno the cars, so this must be the set-up with the best sound/highest horsepower/torgue numbers.

2010 Jeep Commander Sport Hemi
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post #4 of 4 (permalink) Old 09-27-2011, 06:16 PM
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Anyone have a soundclip of the MBRP on the Hemi? I was looking on Youtube last night and all I could find were on Wranglers.

2007 XK Limited|Hemi|QD-II|Leather|Command View|DVD|Monroe Load Leveling Shocks|2" RC lift
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