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      12-29-2017, 09:11 AM   #11
frankenm
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Drives: 12' X5M, 99 M3
Join Date: Jan 2016
Location: San Diego

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Quote:
Originally Posted by J0hnnyB0yx5m View Post
The fabspeed has a totally different design.. those will deff not work!! http://www.fabspeed.com/universal-90...ic-converters/ look at the difference fabspeeds mimi cats has an actual mini cat
I have some that have mini-cats in them and they didn't work there are quite a few designs and options available on eBay and around the web, those fabspeed ones are just ridiculously overpriced.

Given the density of the OEM cats I'm really doubtful any design is going to work, theres about two inches of cat material between the first o2 and the mid cat o2 and these mini cats have very little material in them.

I'll post some pics of what I have, if these things actual work it would be wonderful but I have serious doubts about them and wouldn't risk the $200 price tag.
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2012 X5M - M5 S63TU Turbos/Manifolds, Custom Exhaust, Intake, JB4/BCM, OEM race stripes
1999 323
- M3 Clone - Hardtop - S50 Cams, S52, 3.23 LSD, Koni Sport, 18' E46 M3 Wheels

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