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      05-10-2020, 10:15 PM   #19
roastbeef
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Drives: E92 M3
Join Date: Nov 2010
Location: Orange County, CA

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Quote:
Originally Posted by Ashley_rj View Post
https://gsportbygesi.com/high-perfor...tems-products/

I wonder if these are the same (and cheaper). I am just buying some second hand AP racing breaks so I will have a look at how much space there is down there for a primary cat replacement. sounds like the external dimensions are 4"...
brakes are nowhere near the catalysts sir, you can run what you want. the catalysts do get close to the transmission. the transmission has its own heat pan, and if it is really close clearance, you could easily put additional heat insulation.
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