I figured I'd share my build here. Much of it is already done but I think it makes for a nice chronical to see how it has evolved over time. I'll be posting additions, though it takes time to format it properly, etc. I had left the N54 community for the S65 community. Enjoyed it thoroughly but realized the power ceiling was going to be very hard and expensive to break through. I had a ~580whp E93 M3 and had yearned for something more. I didn't want to build another M3, I wanted to go back and do a sweet ST build. The car The new baby was a 2008 E90 335i 6MT that I got for a steal. My goals for this car are to have a car that can do many different events well. I want something I can go drive to Sebring and run at a HPDE, or drive to a runway event to do roll-ons, drive to the dragstrip and run great times, and to be able to drive to work whenever I want and function as a daily road car if I feel like it. I found the car for sale locally and it had just the right amount of options. I didn't want nav or leather. All I wanted was the sports package and a 6MT. This car also came with the full projector/halo conversion headlights and a new JB4 G5. It's got some miles on it (100k) but recently had the HPFP and turbos replaced under warranty prior to the 82k mile limit. Interior and exterior wise it is in great shape. Nothing but very very minor blemishes, never wrecked and the interior is spotless and in very good condition. The only issues are/were a bad PCV valve (burning oil on full vacuum at decel in gear) and a bad right-rear wheel-bearing. Currently cooling the axle down so I can pop it back into the knuckle. Bearing made the hub so hot that the axle rusted itself into the spline and so I had to remove the knuckle to get the c-clip out. New PCV is on the way. I also discovered the leaking oil around the turbos due to the bad PCV coked up on the waterpump outlet and cracked it. But I was already intending on replacing it anyway once I did my planned mods. Planned Mods So for this car, I'm able to leverage the same kind of mod money I threw into the M3. Obviously that's going to yield some 'fun' mods. I've already placed a downpayment on a VM Topmount kit with a 6466g2 turbo along with a BMW PI kit and Fuel-It Stage3 with the FPR and return line with @fastgti69 . Payam has been great to work with as a vendor. He always responds with good answers, even when I'm just asking for input or advice. I've got a SPEC Stage 3 and SMFW from MFactory on the way as well. Power plans are a solid and conservative 700whp with a stretch goal of 800whp. I've got full access to E85 about 2min from my house now, making a daily-driver with pumpgas making insane power a potential reality. Widebody One of the things I really liked about my M3 was how much tire I could fit under it and how good it looked even when understated. I want to expand upon that with my E90 and go even further. I'm going to be doing a custom E90 widebody. The place doing it will be a local bodyshop that specializes in classic and late-model BMW and Porsche customization. They even do work on Buzz Aldrin's E92 M3 (which I raced by accident in my E93 and put an asswhipping on without knowing who he was, I'd never have run him otherwise out of respect for the man). So for the widebody, I'll be going about double the flare that the M3 body provides and going for a full LCI upgrade sans headlights; this is about 60mm (about 2.5 inches). I'm still contemplating on what wheel setup to run as you can see in my pics above, I have a set of Volk TE37SLs running 315/30 Rival rubber in the rear (a really badass set of tires) and I think they'd look great on the E90 once they actually fit lol. But since the fender will be so wide, I'd have to run serious spacers to make them flush. Which puts me on the fence about them. I'm contemplating on selling them and buying a set of Forgestar F14s in a crazy offset and width (18x11f+11 and 18x12r+20) with crazy wide tires to match. Suspension So on the this build I wanted to build the suspension up a bit. Nothing crazy, but enough to make it HPDE worthy. This means a decent set of coilovers, beefed up subframe bushings, diff bushings, LSD, M3 LCAs and various minor mods. The suspension would be dealt with after power mods and the widebody were done. Brakes For brakes, I'm going to be doing the F30 M-performance brake swap and the 135i rear hub swap so I can fit the rears as well. The subframe will be getting solid mounts and delrin diff mounts. Eventually I'll get a decent set of coilovers and do all the M3 link upgrades. I'll be hunting for an entire subframe out of a DCT E9X M3 so I can just do the LSD upgrade at the same time. This might change in the rear depending on how I feel when I get there. I may go with the E39 rear brakes for a more drag-oriented setup and move to another car for a HPDE build. I dunno yet.