Stuck bolt, help please!

[Dactyl]

I'm working on a buddy's Imprezza trying to get his downpipe off and this bolt will not come out. We've tried WD40, breaker bar, air ratchet (not enough room for an impact wrench), and tried letting the car run for a while to heat up the bolt. It's pretty stripped right now so I'm looking for advice on how to get stuck bolts out. Doesnt matter if we break the nut, we can just get another from subaru, but the bolt/threads are part of the turbo so we cant just grind it off. Any suggestions?

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[WarNox]

since its pretty wasted up now i dont think you'll get it off with any kind of a wrench, if u can get something stuck around it and hit it with a hammer, if there is enough space that usualy works for me!

[325isBaby]

there is one wrench that gets everything off every time...a blue wrench (aka a torch) But agree try the hammer approach

[Ivan]

maybe a dremel can cut through it

[tomctx]

Small cold chisel and a hammer. Try tapping the nut off, or just split it.