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Originally Posted by therealcreeper  I had 0 engine noise until i did lt's. thought i had an header gasket leak because the valvetrain was so loud. I guess they're thinner than the manifolds so you can hear more. |
I as well have slp lt's and slp lm1's and its almost too loud and mine does also sound like a sewing maching. anyone got any ideas on different mufflers that sounds nice and isnt extremely loud?