For price.. you can't go wrong with Invidia N1, and for those that like bassy catback this is it.
If you're looking at other catbacks that may or may not be more expensive than Invidia N1, you might wanna check catbacks from M7 and Perrin.
If you are not too tight on a budget, try M7.
With M7 your car will not be an "ultimate driving machine" but it'll sound like one.
