Harley Davidson should have to pay a fine for cheating on emissions tests. Every automaker should have to meet the same emissions standards - otherwise some companies would gain an unfair market advantage. Harley Davidson is responsible for making sure that its bikes pass required emissions tests - cheating is wrong.
A lot of motorcycle dealerships sell “off-road use only” parts right by the parts counter and will install them for a fee. They won’t sell you the bike with them attached but they’ll take it over to the shop and do it - and it can be legitimate. If I’m buying a new ZX-10 to turn into a track mule I may as well have the dealer put on the pipe now and sell the stock one on eBay rather than pay the speed shop to do it when I’m getting it built. This is worrisome.
Yes, a company should have to pay fines after cheating, even if it's on products not sold on the original motorcycles. So many companies cheat, it's unreal! Making a profit is important for the survival of a business, but cheating and hurting the environment is stupid. Maybe fines will make these companies think twice before they act so stupidly and selfishly again.
No, a company should not have to pay fines for after market products not sold on the original bikes because they did not put the parts on their bikes to begin with. They should simply be responsible for the initial design and production. Everything else should fall on someone else.