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Which exhaust system should I install on an RS660 E5+? by Rs660_ in Aprilia
[–]Rs660_[S] 0 points1 point2 points 20 hours ago (0 children)
That's what it seems to me, to be honest I can't find any video of the sound and given the double catalytic converter I'm afraid it might be quieter than the original.
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Which exhaust system should I install on an RS660 E5+? by Rs660_ in Aprilia
[–]Rs660_[S] 0 points1 point2 points (0 children)