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245 Exhaust 200

posted by  someone claiming to be CB on  Fri Apr 21 11:03 CST 2017 [RELATED]

There were "preCAT" 240s with B21 engines. My 75 which had a B20 with a K-Jet. The Header pipe ran all the way back to the 1st muffler.
There was also a long header pipe on these early B21s 76-77? I'm not sure what year US models started putting on CATs. Also the O2 sensor came on in 79??? I know that early K-Jets did not have the Lambda system.

If you download that Parts Catalog for the early models, I think the Exhaust section starts somewhere around page 360 or 370.

For "better" performance, the idea is to lose the 1st muffler. IPD used to sell a performance exhaust kit with just the rear muffler.

If your CAT works then just leave it. It's quite a chunk of steel. The only reason to hollow it out is if the honeycomb gets clogged or shatters.






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New 1 245 Exhaust [200]
posted by  Boxcar Man  on Thu Apr 20 17:58 CST 2017 >


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