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SHIFT_COUPE »
https://forums.nicoclub.com/shift-coupe-u72650.html
Fri Jun 06, 2008 9:18 am
Raspiness is normal if you recently had this installed. How many miles on the system?
It's also common for the sound to change a little as the pipes warm up, just as your ride to work shows.
Resonator usually solves some droning or raspiness. It could just be the Magnaflows all together.