[onebluemcm]

Thanks for that MBan. For now, starting with Eventuri and a tune. I figure this is the best combination of increased sound and performance for the money. The carbon box sure would be nice, but to my understanding it's an aesthetic thing (sound + appearance) primarily, and I'm not discounting that, I just think for now and my goals, I'll keep the $1600 in my pocket.

I found that Rouge makes a Z4M specific silicone elbow with the side port like the OE elbow, it's a little pricey but thought I'd see how it fits. Also have euro headers that I've been contemplating installing for a long, long time. I may give that a go along with the Eventuri and tune at this time. Tuners, like Josh/Severn, can tune out the secondary O2 sensors, yes? I have no problem getting bungs welded in to my mid section, will have to for the EGT anyway, it's going to have to go somewhere.