good luck , finding another pipe
unless you find one used on this board, your not gunna have much luck finding one.
but if dont minding spending a lil cash
i can tell you right now what you can do.
first you dont need to worry about that crankcase breather/ oil filler tube.
that thing is just cheesy looking and junk.you can use an aftermarket style
first thing u could do is
go to
https://www.kirbanperformance.com/
look up the chrome, oil filler tube / drive side breather
it says 86/ 87 but it works on a hot- air
i have one, it costs $32
that eliminates that crankcase tube that goes to the inlet tube.
its not gunna hurt your car at all, to not use that tube.
next thing is
for the inlet pipe
theres this awesome guy named Mark Huefmann, he makes Cold air induction kits for hot aired buicks
his website is
www.buickgn.com
you can buy the whole kit for you can buy half of it
you can just buy the tube that goes from the throttle body to the Maf,
check out his web page and look under Hot Air/ cold air kits
check out the pics he has
you will see what the idea is...
the aluminum pipe is $65
the chrome is $95
just an idea, a nice dress up part and and a problem solved for $100
get that pipe replaced cuz its throwing off your A/f ratio.
happy holidays