Quote:
Originally Posted by kiysersosae
So the factory cat is 400cel....so, is a 100 cel reduction worth it, I'm not sure now. I think going with the richter 200cel for UK guys would be the best option, especially if you have the function to clear cel codes
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kiysersosae,
Stock cat is 600 cell, below is a HJS 300 vs stock 600 comparison picture. What's more, metallic cats provide even more flow at any given cell count than ceramic counterparts that 99% of stock uses, because cat wall can be made much thinner, allowing for greater effective diameter.
Check out more from my review on HJS DP here.
http://f87.bimmerpost.com/forums/sho....php?t=1339166
Sean