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73-87 Chevy _ GMC Trucks => Performance => Topic started by: three8six on December 31, 2009, 07:32:49 pm

Title: Exhust Suggestions for 4.3 v6
Post by: three8six on December 31, 2009, 07:32:49 pm
Engine is 4.3 v6 .30 over, heads, and will have a holley 600 by next week.....I was curious would it be ok to run duals? I do want it to be pretty quiet, as loud v6's sound like.......Really just asking what type/brand of muffler or muffler you guys would suggest? Just any guidance on the whether to go true dual, an xpipe or what?
Title: Re: Exhust Suggestions for 4.3 v6
Post by: Irish_Alley on December 31, 2009, 09:25:48 pm
with a v6 if you run duals keep it 2" or less i would just go with a singe 3" pipe, muffler not sure then if you want i would split if into duals after the muffler.
Title: Re: Exhust Suggestions for 4.3 v6
Post by: Dragon on January 01, 2010, 03:40:13 am
Engine is 4.3 v6 .30 over, heads, and will have a holley 600 by next week.....
With that Setup, as long as you run an X if you're 2wd, or atleast an H-pipe if you're 4wd(Transfer Case will make running a Properly Placed X an issue), then you would be fine with stepping up to a true dual 2.25" system(Might be able to sneak 2.5", but I wouldn't go larger)...  Headers will also allow it to exhale easier....
Title: Re: Exhust Suggestions for 4.3 v6
Post by: three8six on January 01, 2010, 07:46:56 pm
yea Im 2wd I was definetely going to run an xpipe if I did got dual
Title: Re: Exhust Suggestions for 4.3 v6
Post by: team39763 on January 04, 2010, 02:31:44 am
I worked on a Jeep a while back that had a Vortec 4.3L with headers, true duals into borla stainless mufflers.  It sounded pretty good.  It was quiet, but it woke up when you stepped on it(but still not obnoxious).
Title: Re: Exhust Suggestions for 4.3 v6
Post by: Jim Rockford on January 16, 2010, 08:20:00 am
you don't need anything larger than a single 2 1/2 system.. and don't run duals they sound like butt on a v6.

New dynomax ultraflow catback on my wifes 2002 S10 ZR2

http://www.youtube.com/watch?v=yLLD0kIddIU

(http://img.photobucket.com/albums/v189/ironroad9c1/2002%20s10%20for%20sale/IMG_0898.jpg)

Old pipe could fit inside the new pipes..lol
(http://img.photobucket.com/albums/v189/ironroad9c1/2002%20s10%20for%20sale/IMG_0904.jpg)
Gave a really nice increase in power without being obnoxiously loud.