Have you decided on pipe size(s)?
Any idea how long GP will take to make them? Will GP have a glasspack collector? How long will it be? Why is the sky blue?
Yes, pretty much anyway. The primaries will be 1.75 inches and the secondaries will be 1.875
inches. Coming out of the last 2-1 collector will choke down (Venturi) to 2.25 inches, then
expanding out to 3.0 inches, think Megaphone shape. I'm thinking this is where I would like
to put the muffler using a V-Band clamp (Marman Clamp). This would allow removal in just
a few minutes. Some clamps have a quick release, so you only have to loosen the nut a few
turns, see the link below.
Everything You Need To Know About V-Band Clamps
Everything You Need To Know About V-Band Clamps - EngineLabs
You probably won't believe this, but Zeppo Marx .... yes that one, one of the Marx brothers
invented the clamp below.
I would guess about 2 weeks, but this all depends on their work load when they get the
mockup back. They don't have mufflers, but they will build anything you like.
Don't have time for you last question about the sky, have you heard of the Internet ??? ..... Sorry!
.