Just a friendly advice...there's a lot of crap on e-bay. Just because the price is low doesn't its good.
Get the AC-Delco EGR valve. It fits just like the original and no port direction problem.
When it comes to my two 88s, I put nothing but top quality parts / components on my fiero's.
Like few people say, you get what you pay for.
88 GT, Loaded, 5-speed.
88 GT, 5-speed. Beechwood interior, All original.