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73-87 Chevy _ GMC Trucks => Performance => Exhaust => Topic started by: bigblue09 on September 01, 2008, 05:15:26 pm

Title: summit brand mufflers??
Post by: bigblue09 on September 01, 2008, 05:15:26 pm
what do you guys think about the summit brand mufflers? how do they sound in regards to flowmasters or magnaflow??
Title: Re: summit brand mufflers??
Post by: HAULIN IT on September 01, 2008, 09:18:27 pm
I put a pair of the (2 1/4") fully welded ones on my beater truck. Pretty much stock 350, with cast iron manifolds... They sound odd to me, a little rumble at idle, as you give it the gas (especially going up hills) it makes this resonant, gargleling sound in the mufflers, it has tailpipes turning out behind the wheel, so really I wouldn't have expected this echoing noise. Maybe on another engine or bigger ones are different, but would not be my pick. Lorne
Title: Re: summit brand mufflers??
Post by: KoolerSL2 on September 02, 2008, 10:39:10 pm
i have a set on my truck in 3 inch.
do sound a bit different.
heres the link to my clip.
http://www.sixthsphere.com/storage2/images/hkh159sfi9aceibwo7zz.wmv
Title: Re: summit brand mufflers??
Post by: bigblue09 on September 02, 2008, 11:33:47 pm
the link is not working  :(
Title: Re: summit brand mufflers??
Post by: KoolerSL2 on September 03, 2008, 12:08:16 am

try it again. or right click save as.
Title: Re: summit brand mufflers??
Post by: bigblue09 on September 03, 2008, 10:07:40 am
yea they do sound a little different but they dont sound bad at all.
Title: Re: summit brand mufflers??
Post by: Blue 82 on September 03, 2008, 02:56:30 pm
I have a pair of the 2 1/4" on my truck
a bit too loud for my taste
even with an 'H' pipe
They did have an odd sound as others have noted
That went away with the 'H' pipe

They are well built
and won't expand or split
Title: Re: summit brand mufflers??
Post by: team39763 on September 04, 2008, 09:24:12 am
I know you didn't ask about other mufflers, but I installed a Thrush welded(chambered) muffler on our dually and it sounds exactly like a flowmaster.  It's around the same price as the summit welded mufflers and looks similar too.
Title: Re: summit brand mufflers??
Post by: ccz145a on September 04, 2008, 02:51:04 pm
try looking the x pipe kit that Chris sells on this site. Can't beat the price unless you cut and bend pipe yourself.
Title: Re: summit brand mufflers??
Post by: Captkaos on September 04, 2008, 07:40:31 pm
You would be better off getting a system from Summit, it is a dynomax setup, and they are cheaper.

As CCZ144A said, we have x-pipe kits, but they are for long tube headers.  They will work with manifolds, but you have to have downpipes made.
Title: Re: summit brand mufflers??
Post by: Skunksmash on September 12, 2008, 02:13:18 am
You would be better off getting a system from Summit, it is a dynomax setup, and they are cheaper.

As CCZ144A said, we have x-pipe kits, but they are for long tube headers.  They will work with manifolds, but you have to have downpipes made.

Is 2.5" the size you recommend? I see it is the size you sell but a lot of guys that like to go 3" but i never knew if that was the right size for a street truck that wont be making crazy power... would there be anything to gain from using 3" over 2.5"?
Title: Re: summit brand mufflers??
Post by: Dragon on September 12, 2008, 04:14:04 am
You would be better off getting a system from Summit, it is a dynomax setup, and they are cheaper.

As CCZ144A said, we have x-pipe kits, but they are for long tube headers.  They will work with manifolds, but you have to have downpipes made.

Is 2.5" the size you recommend? I see it is the size you sell but a lot of guys that like to go 3" but i never knew if that was the right size for a street truck that wont be making crazy power... would there be anything to gain from using 3" over 2.5"?
For an L05/350, 2.5" True-Dual would be perfect for a Stock to Mildly Built Engine, anything bigger would be "Over Kill" and a Waste of money(You probably would see a Performance decress, since your engine would be struggling to exhale that much)...  The Only time I have ever seen a 3" system benefical to a Stock to Mildly Built Engine, was when it was a Single Exhaust System(Entire Setup from the headers/manifolds to the muffler and out), or Even a Single to Dual Outlets(From the Headers/Manifolds, to the Muffler, and Split Out)..  Those systems were usually put on 88-98 C/K trucks, and the Third & Early Fourth GEN F-bodies....
Title: Re: summit brand mufflers??
Post by: Captkaos on September 12, 2008, 12:07:56 pm
Personally for any streetable 350 2.5 is going to be fine.  For a 454, 2.5 should be fine also.
Title: Re: summit brand mufflers??
Post by: Skunksmash on September 13, 2008, 08:16:42 pm
Hmm, how much HP/Torque would you say is ok to use with a 2.5" setup? I mean, what's the max before you would go with 3"? I ask because i do have some other mods in mind and i would not want to restrict the engine to much.
Title: Re: summit brand mufflers??
Post by: VileZambonie on September 13, 2008, 11:49:32 pm
Any Big Block I ever built needed 3" exhaust to breath. If you are going over 450HP 3" will be a good idea
Title: Re: summit brand mufflers??
Post by: Captkaos on September 14, 2008, 10:54:34 am
I did say "streetable" = mildly warmed over.
Title: Re: summit brand mufflers??
Post by: VileZambonie on September 14, 2008, 04:15:53 pm
I did say "streetable" = mildly warmed over.

Is this in response to my post?

I was stating any bigblock I ever built needed 3" exhaust. I wasn't saying 2.5" is inadeqaute if that's how you read it. My suggestion was anything over 450HP I would run 3"
Title: Re: summit brand mufflers??
Post by: Captkaos on September 14, 2008, 07:53:17 pm
That was my attempt at ribbing you, basically saying yours live on just this side of streetable...
I am in agreeance with you.
Title: Re: summit brand mufflers??
Post by: Skunksmash on September 15, 2008, 01:51:58 am
Thanks, from this i can surmise that 2.5" is all i will need. I don't plan on going hog wild with the power due to today's gas prices. I would, but i like to actually be get to drive my truck lol. Chris, do you have any idea of the typical shipping charges on the x pipe that you sell? If it helps, my zip is 76031. Also, i had another question. Is it ok to post up and talk about products that are not sold by this site? I saw this post

"oh ok thanks. i think im going to go with the turbo true dual kit from the (The next person that post this gets BANNED!-admin) magazine. its a good price and i have heard good things about them."
Title: Re: summit brand mufflers??
Post by: Captkaos on September 15, 2008, 08:53:11 am
Is is about $65 to ship it.

You can talk about any manufacturer you want ie Dynomax, flowmaster, etc.  I will reply to your PM about the above.  Where did you find that post?

Title: Re: summit brand mufflers??
Post by: Skunksmash on September 16, 2008, 03:11:47 am
  Where did you find that post?



It's post number eight in this thread. Also, maybe i just did not see where you wrote it but what kind of mufflers is it that comes on that X-pipe? Or does it come with any?
Title: Re: summit brand mufflers??
Post by: Captkaos on September 16, 2008, 10:45:11 am
The base kit doesn't come with mufflers, the ones that do come with it are made by the same company, Pypes Exhaust, they are $50 extra for any version you chose

This is the page in the catalog for it:
http://store.73-87chevytrucks.com/merchant2/merchant.mvc?Screen=PROD&Store_Code=7&Product_Code=SGT80&Category_Code=73-87UHood
Title: Re: summit brand mufflers??
Post by: SUX2BU99 on September 16, 2008, 12:46:59 pm
Capt, if you were to choose a pair of headers that were most compatible with the system you sell, what would those be?
Title: Re: summit brand mufflers??
Post by: Captkaos on September 16, 2008, 04:13:31 pm
Full length or shorties?
Title: Re: summit brand mufflers??
Post by: bigblue09 on September 16, 2008, 10:42:54 pm
what would be the best overall. sound and power, full length or shorties?
Title: Re: summit brand mufflers??
Post by: SUX2BU99 on September 17, 2008, 11:40:41 am
Whichever ones mate up best to the system you sell and the downtubes. It kinda looks like the system was prototyped more for shorties than for full-length headers?
Title: Re: summit brand mufflers??
Post by: Captkaos on September 17, 2008, 04:35:57 pm
They were pro-typed for generic long tubes and a long bed truck (you cut it to fit a SWB).
If I was lowered with a SBC, I might try some 67-81 Camaro Headman Elite 1 5/8" headers.
Title: Re: summit brand mufflers??
Post by: SUX2BU99 on September 17, 2008, 04:54:40 pm
Sweet, I'll be sure to remember that.