MBRP downpipe - Chevy and GMC Duramax Diesel Forum
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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Old 07-11-2011, 09:48 PM   eBay Motors  #1 (permalink)
 
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MBRP downpipe

Is buying the 3 Inch MBRP downpipe for my LLY worth it
and how hard is the installation
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Old 07-11-2011, 09:49 PM   eBay Motors  #2 (permalink)
saw what you did there
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Yes. It's very worth it. I think it's much easier on the older trucks
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Old 07-11-2011, 09:51 PM   eBay Motors  #3 (permalink)
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totally worth it... buuuttttttt the mbrp have been fitting a little hard... i would go diamond eye
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Old 07-11-2011, 10:02 PM   eBay Motors  #4 (permalink)
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I like the profabs myself.
Cheaper and great quality.
Darryl
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Old 07-12-2011, 02:39 AM   eBay Motors  #5 (permalink)
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I have a MBRP downpipe,but if I was to do it over I would go PROFAB.
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Old 07-12-2011, 07:24 PM   eBay Motors  #6 (permalink)
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Don't mean to hijack, but I have the same truck and was wondering about that mod too. But, how does that fit in with California emissions? Thanks.
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Old 07-12-2011, 07:26 PM   eBay Motors  #7 (permalink)
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I'm going with ProFab next week.
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Old 07-12-2011, 08:37 PM   eBay Motors  #8 (permalink)
 
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i was also thinking about a MBRP stainless 5 Inch turbo back exhaust too what do you guys think about that system is it good bad or is there any better brand or systems you guys would go with thanks
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Old 07-13-2011, 05:07 AM   eBay Motors  #9 (permalink)
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it dosnt efect emissions at all. The stock downpipe is f up very restrictive.
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Old 07-22-2011, 08:55 AM   eBay Motors  #10 (permalink)
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I just installed the MBRP downpipe and Cat delete front pipe. Between the 2 of those, I think they have made the biggest difference in performance that I have seen. It was a complete PIA to do the job but totally worth it.
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