i did this on mine but did not like the sound. i have it on my N54 and it sounds great but on the N20 it loses its gerr sound. gives it a putt putt sound almost. BTW i just zip tie the hose so its real easy to install and take off. just pinch the hose together and wrap a zip tie around it. easy pizzy lemon squizzy. but let me know what you think of the sound
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