I need some help, does anyone know if a KAT 600 needs exhaust backpressure, if yes, any specs. I have thrown this out before but never got an exact number. I am thankfull for any help. I want to try to run a dual exhaust set-up without mufflers, but don't want to go thru the effort of fab'n the exhaust and loosing HP and performance. I have never seen this done, but I don't know if it because of the noise or the need for backpressure.
Thanks
Thanks
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