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 Exhaust Suggestions

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AlbertRoadmaster



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Join date : 2014-06-13
Location : Philadelphia Pa

PostSubject: Exhaust Suggestions    Sat Apr 01, 2017 12:10 pm

Hi everyone,

I am looking to replace the exhaust on my 1995 Buick Roadmaster wagon this spring as the mufflers are starting to rust out. My initial plan was to replace the intermediate pipe and over the axle pipe with stock pipes from Walker Exhaust, then replace the mufflers with Flowmaster 40 or 44 series. However it is difficult to find a muffler that has a 2.25 inch inlet and 2.00 inch outlet, I would also like to find over the axle pipes without resonators.
So now after doing some research it looks like the best option is to get a 2.25 inch over the axle pipe? Let me hear what you all have done on your cars and, if possible where you bought your pipes. Any tips on the actual replacement process would be appreciated as I plan to do this myself.
-James
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94Woody



Posts : 1373
Join date : 2008-12-02
Age : 42
Location : Ocala,FL

PostSubject: Re: Exhaust Suggestions    Sat Apr 01, 2017 12:23 pm

Simple. Don't go with the stock diameters Wink

I put the Dynomax 2 1/2 intermediate pipes on my wagons. They are a direct drop in and fit perfectly. Can even reuse your stock flanges if they are in good shape. After that I installed a pair of 2 1/2 Thrush Welded Mufflers in the stock locations. On my former wagon I modded the Dynomax sedan OTA pipes. On my current wagon I just used the proper reducers to retain the stock OTA/tails minus the resonators. Mas be removing them soon and just running turn downs at the muffler.

As for new mufflers on stock pipes they make adapters for pretty much every size of pipe on earth Smile
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jayoldschool

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Posts : 2357
Join date : 2009-06-14

PostSubject: Re: Exhaust Suggestions    Sat Apr 01, 2017 1:50 pm

Or, keep the factory stainless pipes, and simply swap in some new mufflers.
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Rev Bob



Posts : 141
Join date : 2016-05-24

PostSubject: Re: Exhaust Suggestions    Sat Apr 01, 2017 3:49 pm

The Borla front pipes and muffler system for an SS Impala works perfectly from the cats (or cat eliminator pipe) to the front of the axle. With a little trimming on the factory resonator pipes and some stainless band clamps, a really nice system with a crossover can be installed. This system uses mandrel bent pipes and eliminates the smashed area by the transmission crossmember.
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TheRoadmasterKing

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Posts : 330
Join date : 2015-10-07
Location : Columbus, Ohio

PostSubject: Re: Exhaust Suggestions    Sat Apr 01, 2017 9:57 pm

https://www.summitracing.com/parts/wlk-41952/overview/
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AlbertRoadmaster



Posts : 15
Join date : 2014-06-13
Location : Philadelphia Pa

PostSubject: Re: Exhaust Suggestions    Mon Apr 03, 2017 9:00 pm

Thanks for the suggestions, I will look into those options.
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atlantadan



Posts : 206
Join date : 2011-12-07

PostSubject: Re: Exhaust Suggestions    Mon Apr 03, 2017 10:29 pm

FWIW, the Flowbastards will drone so bad you'll want to pull your ears off.
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Andebe

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Posts : 2601
Join date : 2013-02-20
Age : 48
Location : Richmond,Indiana

PostSubject: Re: Exhaust Suggestions    Tue Apr 04, 2017 10:55 am

atlantadan wrote:
FWIW, the Flowbastards will drone so bad you'll want to pull your ears off.
Avoiding the 40 series will help with the drone.
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TheRoadmasterKing

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Posts : 330
Join date : 2015-10-07
Location : Columbus, Ohio

PostSubject: Re: Exhaust Suggestions    Tue Apr 04, 2017 11:51 am

Hold up, really? I didn't know that. Once I become a wagon owner, planning ahead, some 40 or super 44 series mufflers were going to be one of my first mod ideas. Should I end up using some Cherry Bomb vortexes instead?
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rauldelp

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Posts : 39
Join date : 2015-05-27
Age : 33
Location : Hollywood, Florida, USA

PostSubject: Re: Exhaust Suggestions    Tue Apr 11, 2017 6:11 pm

A little late but, currently running the Vortexes, and loving them. Much quieter than the Dynomax Ultras, but still more rumbly than the factory muffs. Got em cheap as an open box return from Amazon 22.50 a piece for the offset 2.25/2.25 version

I dunno what's with these cars but they seem to enjoy droning. No drone right now, and the missus and I are happy.
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TheRoadmasterKing

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Posts : 330
Join date : 2015-10-07
Location : Columbus, Ohio

PostSubject: Re: Exhaust Suggestions    Tue Apr 11, 2017 6:51 pm

rauldelp wrote:
A little late but, currently running the Vortexes, and loving them. Much quieter than the Dynomax Ultras, but still more rumbly than the factory muffs. Got em cheap as an open box return from Amazon 22.50 a piece for the offset 2.25/2.25 version

I dunno what's with these cars but they seem to enjoy droning. No drone right now, and the missus and I are happy.

If possible could you send me a clip of the sound of the Vortexes? I have tried looking on YouTube but I have not found any videos of a RMW with Vortexes
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atlantadan



Posts : 206
Join date : 2011-12-07

PostSubject: Re: Exhaust Suggestions    Tue Apr 11, 2017 6:56 pm

Dynomax VT's are my suggestion. I've had them for the past year and love them. Zero drone, and quiet unless I don't want to be.
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Eds rmw



Posts : 54
Join date : 2016-06-29
Location : Piedmont sc

PostSubject: Re: Exhaust Suggestions    Wed Apr 12, 2017 12:00 am

I have flowmaster 44's, on my 95 ,everything else is the stock system , even the resonators. Sounds nice, no drone, not loud. It has a nice rumble to it.
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Andebe

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Age : 48
Location : Richmond,Indiana

PostSubject: Re: Exhaust Suggestions    Wed Apr 12, 2017 10:55 am

My current set up is muffler delete,with a x-pipe,rest is factory. Turns heads without be annoying.
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atlantadan



Posts : 206
Join date : 2011-12-07

PostSubject: Re: Exhaust Suggestions    Wed Apr 12, 2017 11:32 am

Eds rmw wrote:
I have flowmaster 44's, on my 95 ,everything else is the stock system , even the resonators. Sounds nice, no drone, not loud. It has a nice rumble to it.
My old 96 had Flowmasters on it, x pipe, no resonators. The drone at 55-65 was darn near unbearable, so those resonators may have been the ticket.
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81X11

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Join date : 2010-06-23
Age : 43
Location : Round Rock Texas

PostSubject: Re: Exhaust Suggestions    Wed Apr 12, 2017 4:39 pm

I replaced the stock HUGE mufflers with Flowmaster 40's...years ago.  They still look new (Texas) and I think it sounds great.   I left the stock resonators, and first sanded the stock tips and then used steel wool followed by Mother's polish, and they look great. No drone, nice on the highway but a great rumble when revved or taking off.    

Of course my 15-year-old says the car is too quiet....   Wink

Here's a link, tell me what you think: https://www.facebook.com/mike.massey.543/videos/vb.1553678810/10203934798121009/?type=3

-Mike


Last edited by 81X11 on Wed Apr 12, 2017 6:12 pm; edited 1 time in total
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rauldelp

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Join date : 2015-05-27
Age : 33
Location : Hollywood, Florida, USA

PostSubject: Re: Exhaust Suggestions    Wed Apr 12, 2017 5:15 pm

Not the LT1, but still makes the little peanut cammed L05 sound halfway decent
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TheRoadmasterKing

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Join date : 2015-10-07
Location : Columbus, Ohio

PostSubject: Re: Exhaust Suggestions    Wed Apr 12, 2017 11:30 pm

Both of your wagons sound amazing. Love both them.
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Andebe

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Location : Richmond,Indiana

PostSubject: Re: Exhaust Suggestions    Thu Apr 13, 2017 10:51 am

Sounds good to me.
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AlbertRoadmaster



Posts : 15
Join date : 2014-06-13
Location : Philadelphia Pa

PostSubject: Re: Exhaust Suggestions    Tue May 02, 2017 8:46 pm

Thanks so much for all the suggestions, I think I'm going to go with the Flowmaster 40s and replace the resonators. Hopefully this will prevent the drone. Once again, thanks for the help
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