Hey what's up. I use 25:1 for break in and regular use. The tuned pipe can go on at any point. It doesn't matter when you put it on. I've broke engines in with a pipe on it.2 questions...do i run 25:1 or 30:1 after break in and first gallon of fuel?i am getting conflicting advice.And 2nd question how long do i wait to throw on my tuned pipe?
25:1 is definitely a safe option.
I use a rear mount so it isn't a problem.Is it necessary to use header wrap on the pipe to not distort or melt the body? Do you use header/exhaust wrap?