Any time you add weight you penalize the bike, and vice versa, it helps anytime you reduce weight. On a CB 1100 you have to ask to what end? Will another ten pounds ether way make a real world difference?
If you gained 3 or 4 hp with an aftermarket 4 into 1 pipe is it worth $200-$300 per HP going from 86 hp to 89 hp? Or 84 to 88 hp depending on individual CB and individual exhaust system. ( not all CBs make the same HP stock, and not all aftermarket exhaust actually produce a gain, or the same gain in HP)
If you have to add a $400 power commander to optimize your 3 or 4 hp gain, is making each of those horsepower gains worth another C note?
To some people it is, and it's not up to me to decide if it is or not. My view is as long as you can justify it to yourself, do what you like to your bike, but no one can make that justification or decision other than the guy opening the wallet.
