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Free minder
Join Date: Nov 2001
Location: Middlessex county, MA
Posts: 9,422
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SSI heat exchangers are not really an upgrade on 3.2L motors because the tube diameter is smaller than the exhaust ports, causing a restriction. I would assume that the same reasoning applies if you are only using the 3.2L heads.
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1978 SC Targa, DC15 cams, 9.3:1 cr, backdated heat, sport exhaust https://1978sctarga.car.blog/
2014 Cayenne platinum edition
2008 Benz C300 (wife’s)
2010 Honda Civic LX (daughter’s)
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