1999Z28

my corsa is shot...and i got it used so i don't have a reciept. Another 300 dollars for a new muffler isn't in my price range....i saw the horse power tv recently and i can get a muffler like that, flowmaster, pretty cheap. I've heard flowmaster sucks unless you get the race series ones, will i really be able to notice a difference in performance. I race every week, so i know what hte car runs.

Z28Venom

iTrader: (13)

As you may have read.. and will get flamed for here very shortly..

The 80 series Flowmaster flows terribly. If you're going to just replace the muffler, buy either the magnaflow or the Hooker replacements.

Granted the Flowmasters have a great sound. That series muffler just sucks..

jrp

iTrader: (16)

magnaflow; can be had for 100 bucks and will outflow the blowmaster.

1999Z28

who sells just the muffler???
please post link

Z28Venom

iTrader: (13)

http://www.jegs.com/cgi-bin/ncommerc...12&prmenbr=361

2xLS1

iTrader: (25)

The Dynomax Ultraflow Welded was always said to be a good flowing 1 in 2 out muffler for these cars. This is just what I have read.

16nrollininaws6

Yes, you will see a definite change in your ET's. The link I posted is someone who just swapped over a Maganflow for a Flowmaster muffler and they picked up 2-3 mph in their ET.

Stock muffler- ~200 cfm flow
Flow 80 series- ~360 cfm
Magnaflow- ~1100 cfm

See the difference? DONT PUT ON THE CHOKEMASTER! Go with Magnaflow

https://ls1tech.com/forums/generation-iii-external-engine/181550-flowmaster-t-bottleneck.html

1999Z28

does magna flow have a 3in inlet and dual 3in outlets anywhere for sale??

glennster

iTrader: (1)

Don't do be that guy.

Z28Venom

iTrader: (13)

I've looked around, and all I've seen is the 3" inlet w/ dual 2.5" outlets.. I'll keep looking though..

slow

iTrader: (7)

thats all i've seen too.

I'm in the same situation as you.

Im just hoping the original owner (lukcily it is a friend) can get a new muffler, so i don't need to do something else. as $300 is crazy for a crappy muffler

Ryan

Ferocity02

iTrader: (60)

Magnaflow or Hooker

ratio411

Another vote for NOT using FM 80 series.
A buddy had a DynoMax crossflow that came apart on him. Blew out the guts... It may be a fluke, but I wouldn't get one after that.
You have all the right pipes, so you just need a muffler and the Magnaflow is better flowing than most, even Corsa.
About size, the only one that matters is the inlet. The smaller outlets don't affect anything since there are 2. If you have 3" tailpipes, any muffler shop can mod them to go onto the 2.5" outlets.
My .02
Dave

1999Z28

alright..i'll check into magnaflow

1999Z28

hmm..magnaflow systems for the ls1 have both the exit exhaust pipes on the drivers side of it and it comes around the muffler...not like corsa..

Bad Blu Formula

iTrader: (3)

That may be weird but ten times better than blowmaster

770Guy

Hooker catback is the best bang for your buck, 300bucks!!!! its the best flowing

1999Z28

http://ourworld.cs.com/jrpws6/mod+gu...aflowcatbk.jpg
where can i get this muffler???

anyone have any comments on mufflex or random tech mufflers?
or know where to order just the muffler

SSCamaro99_3

iTrader: (1)

Alex, talk to Sue about Magnaflow. She may be able to help you out.

slow

iTrader: (7)

no, thats the V6 kit... the LS1 magnaflow kit is just like the corsa, but 2.5" pipes coming out of it.

Ryan.