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Yoshimura rs-4 insert

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Do any of you run the rs-4 without the insert? Does it run better without or does it need to have it in?

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that pipe is insanely loud! My local track has a db limit, and they do test.I had to run the euro insert in mine. It didn't even pass, but they said OK

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that pipe is insanely loud! My local track has a db limit, and they do test.I had to run the euro insert in mine. It didn't even pass, but they said OK

 

 

I hate that companies even produce exhausts that can't pass a sound check. It's nothing more than pure laziness in the design departments. 

 

Noise does NOT equal power.

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I just wanted to know if there are any performance gains by removing it unless you aren't supposed to remove it for some reason. When packed it's much quieter than my stock pipe. I agree that loud pipes suck but this one isn't too loud. When the packing goes it is but what pipe isn't? I have the titanium system. I'm assuming most of you run the aluminum. That's what most people have from what I've seen. Maybe one is louder than another.

Edited by perkybewbs

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