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      10-22-2012, 06:40 PM   #17
U.S. Navy Officer
daltonnnn's Avatar

Drives: 2012 X5 Diesel
Join Date: Sep 2008
Location: Coronado, CA

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Call me stubborn, but since I used to build engines and race cars, anything is possible. Maybe I should have kept my e92 M3, but I wanted an SUV anyways.

I read the PDF you supplied me and it gives a good explanation of everything. I'm only replacing the piping and muffler after the SCR catalyst, so it should be fine. The muffler isn't explained much at all, but in parenthesizes, it says silencer. Yes, usually a muffler does reduce some exhaust gases, but since our D has so much technology before the muffler, removing it, or changing it to a high flow will be fine. If anything, I'm just looking for a little more noise, and if not, bigger piping for a little more hp/tq.

I ordered the JBD, so we'll see how that goes when I get it.

NRG, you are correct. The radiator on the left hand side is an aux radiator. BMW should have just added a bigger muffler instead of 2 in the first place.

The IC is the one you see when you look directly into the main grill at the bottom. Seems like there is still more room in there, so a taller and/or longer one should go into that area.
2012 X5d - Alpine White | Almost fully loaded | Color matched everything | Clear Bra | 4" Magnaflow race muffler exhaust system | JBD @ 80% | 20x10 Avant Garde M510s
2009 Honda CBR 1000RR - White
2008 M3 E92 - Retired - Alpine White | 6MT | Vorsteiner rear diffuser
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