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| 04.5-05 LLY Performance Parts Discussion Discussion of Performance Parts For the 04.5-05 LLY Duramax Trucks No Advertising |
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05-11-2008, 07:25 PM
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eBay Motors
#1 (permalink)
| | Member
Join Date: Apr 2008 Location: Fresno, CA
Posts: 76
| Muffler "Turn-Around?"
The AFE cat-back exhaust system includes a muffler that they claim you can "turn around" for a quieter sound. I'm sure this restricts the airflow somewhat.
Does anyone know if you can do this with an MRBP system?
How much of a disadvantage do you think this will be?
__________________
bob213
2005 GMC Crew Cab SLT 4X4
4" MBRP cat back
Kennedey air box mod.
Diablo Sport Predator
BD Exhaust Manifold/PCV Reroute/Resonator blocked
AutoMeter UltraLiteII Pyro Gauge | 
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05-11-2008, 08:01 PM
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eBay Motors
#2 (permalink)
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Join Date: Mar 2008 Location: Columbus,IN
Posts: 1,324
| Yes you can with the mbrp, the only thing it does is let the air go in the fins one direction, or over the fins in the other. So can be quiter if wanted. | |
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05-11-2008, 09:55 PM
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eBay Motors
#3 (permalink)
| | Moderator
Join Date: Oct 2006 Location: Irwin PA
Posts: 2,217
| It honestly isnt to loud with the muffler installed the regular way. The downfalls I can see are the muffler could get filled with soot eventually ruining the mufler and it wont sound as good. Is say leave it the way it should be and youll be happy. 
__________________ 2006 Silverado Shortbed Crew Cab LBZ Escalade handles, Line-x, Painted bumpers and towing mirrors, Tinted Front Windows & Tail lights 2 MTX 10in Subs & Punch 250amp in a custom box. Autometer Ultralite II Pyro & EGT gauges with pillar pod MBRP Turbo Back stainless exhaust (Straight piped), AFE Stage II Intake, PPE Hot+2 265/75/16 Nitto Terra Grapplers on Gear Alloy wheels Lost Kitty Reward if found!! 1999 Ford F-550 Powerstroke Tow Truck-Wrecker **Jerr-Dan Bed, S&B Intake  | |
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05-17-2008, 08:14 AM
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eBay Motors
#4 (permalink)
| | Junior Member
Join Date: Nov 2007 Location: Calgary, Alberta
Posts: 11
| I have the AFE set up and with the muffler in backward so it is more of a rumble sound and I have my PPE set on Level 6 all the time and have had no issues in the yr and half that I have had it that way!! | |
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05-17-2008, 10:08 PM
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eBay Motors
#5 (permalink)
| | Super Moderator
Join Date: Aug 2005 Location: Alaska
Posts: 1,554
| the only thing that I have read about turning the muffler around is it causes more interior resonance. I don't think there would be a great deal of sound change, but I haven't tried to turn mine around either.
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05-18-2008, 06:21 AM
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eBay Motors
#6 (permalink)
| | Senior Member
Join Date: Jan 2008 Location: Roswell, NM
Posts: 259
| I have the Diamond eye system with a straight thru design muffler.(no louvers)With the straight thru muffler it is really not that loud. I would just install the thing the way it is supposed to be and not worry about the sound level.Unless you are running covert operations at night where absolute silence is a must. Oh but then your up a creek anyway because its a diesel.LOL 
__________________ 06 2500 CREW CAB 4X4 LBZ
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