Pittnathan
Well-Known Member
Hi. Got cobra slip ons and a stainless manifold on my bike. I've been told by a reliable source that I could be losing upto 20% of stock power or 25hp by having them. Is there any easy/cheap way of getting it back or is it a case of sacrificing looks for performance and selling them and getting a different system?
Please help! Has anyone had these and changed and noticed big power gains?
Please help! Has anyone had these and changed and noticed big power gains?