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94 EX Coupe
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162 Posts
Discussion Starter #1
My bypass crapped out on me. Are all the M45 bypass the same #999-050. For the Miata and Civic. Trying to find the best price.
 

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Meat Popsicle
91 CRX Si
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2,939 Posts
Are they all interchangeable? Yes

Are they all the same...not exactly.

The earlier style JRSC kits had a bypass valve that was mounted differently and thus the nipples that connects to the vacuum source were located on different sides depending on which style you had.

Either way, it'll work. Unfortunately, the part from moss is like $80 or so
 

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Registered
94 EX Coupe
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162 Posts
Discussion Starter #4
I can find one for around $75 shipped. Looks like the Miata and Civic are the same for the M45.

Also what is a good exhaust size running a JRSC. Would 70mm be over kill? Or should I get a 2.5.
 
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