Resolved 2G Turbocharger bypass valve

[MadDogg86]

So I have a completely stock 98 eclipse gst and was changing the fluid and plugs when I noticed a air line was broken did some looking found out its the turbo charger bypass valve plastic crap but can't find a replacement at any of my local auto stores is there something I can do or a upgrade I can change in place kinda wanted to keep it stock since it's a nice daily and low mileage

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[Spleen8urLSX]

Look up using a 1g blow off valve on a 2g. There is an adapter flange sold and will appear stock while negating the short comings of the plastic Bosch blow off valve that came on the 2g’s. The Evo 8 and 9 blow off valve is pretty much the same design as a 1g but mounts differently, if I recall theyre easy to adapt as well.

 

[Adam]

I broke that nipple off and jb welded it back on. Lasted 7 years until I upgraded the bov. Might be able to thread in a brass nipple and seal it in place.

The later evos have basically the same design but with the nipple on a different side. I believe the evo x uses a metal bov of the same design.

They also sell adapters to bolt on whatever bov you'd want

 

[Dericsh]

as mentioned, This adapter plus sourcing a used 1G blow off valve is probably the best and most stock but upgraded fix.

 

[CrackedDSM]

The Evo IX MR had a metal version of this exact BOV that works and performs like a 1G BOV does. Or you can source a 1G BOV w/ adapter for super cheap (check eBay, you can find the 1G BOV adapters for like $20 shipped there) as well. Both are upgrades.

 

[19Eclipse90]

Evo metal BOV options that would work as drop-in replacements are part numbers 1545A001 or 1545A007, the difference being the orientation / position of the vacuum nipple for the line running to the intake manifold.

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IMO, 1545A007 is oriented “better” for a cleaner install, closer to how the 2G BOV originally was oriented.