[Richbot]

Short of just removing parts, the battery is order of magnitude better bang for buck lightweighting than just about anything else. I, personally, wouldn't go to the trouble of moving it behind the back seat, but I bet there's a couple lb in the wiring there too. But 8lb of lifepo, and a few morelb of wire, low to the ground over the right rear isn't a terrible place for weight.

Don't delete the AC, driver comfort is a performance issue, if you're sweating in grid for 10 minutes ebfoer you go out you're not going to be as sharp. Delete it when it breaks, and install a cool shirt system. Also swass sucks.

Second the burger tuning filters. HAve had them on my almost all-street car for a couple years now and no adverse effects.

Center console - you can lightweight this with the sunglass tray instead of the ashtray, saves 97 grams!

There is a nice Android-based thing that can use the stock dash hump screen for lots of cool programs including Torque and the like. Might want to look into those before you bin it.

But don't listen to me my E90M is 3480 with a full tank and full stock interior still, bleh, pig, lol

Also, what's a Do99 oil cooler, is that like turning your oil cooler up by 11?