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just a quick question. will the down pipe from an 89 b20a5 2ws engine fit onto a 91 b20a 4ws engine?
as long as the 90-91 comes with a b20a as well...egr plugs are different on the the b21
 

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^^Agreed. B20a5 downpipe will fit any 3rd gen b20a engine except for the b20a3 (dual carb). But the b21a1 is different than any b20a engine.
 

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^^Agreed. B20a5 downpipe will fit any 3rd gen b20a engine except for the b20a3 (dual carb). But the b21a1 is different than any b20a engine.
x2
thanks bro i forgot about the b20a3 (dual carb)
 
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