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Old 05-20-2014, 04:18 PM   #51
Hart_Rod
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Re: Best Muffler for a LSX?

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I had the 11229 on my tbss and it sounded great with longtubes and cats. That is a 3" in/out muffler though so to get the same size you'd need the 11226. I say if you want louder get the 11226 and if you want it a little quieter get the 11256
Thanks. I went with the 12256. I want to quiet it down a little. I've got electric cutouts for when I want more noise.....
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Old 05-20-2014, 09:50 PM   #52
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Re: Best Muffler for a LSX?

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Thanks. I went with the 12256. I want to quiet it down a little. I've got electric cutouts for when I want more noise.....
I actually was wondering if it was possible to use cutouts with an LS conversion... was about to start researching it... you have some info or threads about it?
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Old 05-20-2014, 10:07 PM   #53
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Re: Best Muffler for a LSX?

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I actually was wondering if it was possible to use cutouts with an LS conversion... was about to start researching it... you have some info or threads about it?
No different than any other motor to be honest.

in relation to being 'different' being an LS swap... you'd just have to place them past the o2 sensors....
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Old 05-20-2014, 10:18 PM   #54
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Re: Best Muffler for a LSX?

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No different than any other motor to be honest.

in relation to being 'different' being an LS swap... you'd just have to place them past the o2 sensors....
What he said, .
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Old 05-21-2014, 01:19 PM   #55
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Re: Best Muffler for a LSX?

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Originally Posted by 66LSx View Post
No different than any other motor to be honest.

in relation to being 'different' being an LS swap... you'd just have to place them past the o2 sensors....
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Originally Posted by Hart_Rod View Post
What he said, .
Very interesting... Now I have to find some electric cut-outs... I hate you guys...
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Old 05-22-2014, 03:11 PM   #56
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Re: Best Muffler for a LSX?

I have cutouts on my setup as well. DT 1-7/8" primaries, to cut-outs, or x-pipe to hooker aerochambers and out behind the wheels. Hookers keep it nice and quiet on the road but still sounds mean as hell when you get on it. Opening the cut-outs makes it a completely different animal though. Insta-smile.
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Old 07-06-2016, 12:45 PM   #57
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Re: Best Muffler for a LSX?

I'm running 2 1/2 inch pipe my flowmasters are next to my t case so there closer to the motor on my 75 blazer. but man I don't have that aggressive sound like I use to. any suggestions? I did use the original flowmasters I had had before.
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