[harley_z]

Just got a new set of pipes and before I used them, wanted to try one of the blueing preventive solutions that are out there.
Has anyone had any experience using these? Do they restrict flow at all, or do most of them just go on as a thin layer against the pipe wall?

Thanks.

[chopperdave]

IMO, I have used these products in the past, and as long as you are jetted/tuned close, they work as advertized. Just make sure you get the baffles out first! lol, also if you have the pipes with anti-reversion cones in them, you'll have trouble draining the mess out of there. I have seen no real-time data on flow/performance loss when using these products, but I would suspect there is little to none. Again, IMO, it's worth it.