the last remaining original Flexfab hoses were cleared out of their warehouse back in 2015. the TTA guys found them and bought out the remaining 50 or so for $50 each thru a FlexFab distributor - no direct sales. here is that thread:
http://www.turbotransam.com/forum/index.php?threads/flexible-intake-pipe-25525662.7852/
Back then, I spoke at length with rep Jacqueline, the original sales rep to GM for this MAF hose and the intercooler hoses. FlexFab will never make these hoses again due to no raw material and changes to the manufacturing processes today.
highwayStars has not updated this part on their website for many years. shows temporarily out of stock as a tease. highway stars never made these - only purchased a bulk order thru a FlexFab distributor back in 2011. when they sold out, they were done.
that's why I've recommended aircraft ducting in various past threads I've come across. 3", 4" , 5" whatever size you want. the CEET double layer neoprene - black- is what you want. smooth on the outside. think of the ducting Pete Tomka used on his cold air kit from years ago sold thru Kirbans and others.
CEET aircraft ducting looks a whole lot better than the aftermarket "stock" maf hose sold by the vendors and Original Parts Group.
@grassdoctor shared a portion of my conversation with him about this topic in the thread below.
https://turbobuick.com/threads/does-turbo-cause-vacuum-in-maf-pipe.463690/
the offer price from John Spina is not a bad price. I've seen NOS FlexFab MAF hoses sell no problem for $400 each.
GM wastegate hose has set a new price of $225 each according to recent ebay sales.
