[carguy138]

Super helpful thread. Would really appreciate some thoughts on what to do here.

Car is a 2011 335i xdrive 6MT, M-sport and now has 72k miles. I'm the second owner, have owned it for 8 years and it is in excellent shape. I've done a ton of preventative maintenance and upgrades over the years. Experience level is intermediate, (HPDE, lemons, winter rally schools, etc.) and signed up for 6 HPDE days this summer.

Anyways the car has been great but I'm trying to take a step back to see if I should contine. I've started looking at E46 and E90 M3s but the entire used car buying experience is a huge turn off. I know my car but anything different is a maintenance crap shoot and likely has 4-5 owners at this point.

Here's what I've done to it over the years.

-Turner Delrin Subframe Mounts
-Turner Delrin Diff Mounts
-E93 M3 rear subframe brace
-E90 M3 Rear Sway Bar
-E90 M3 Front Strut Brace
-UUC Front Sway Bar
-Dinan Springs/Koni Yellows/Dinan Camber plates
-BMW Group N Rear Toe Arm Bushings
-Poly Front Control Arm Bushings
-BMW Xdelete (removed driveshaft and will eventually remove front diff and seperate half shafts)
-Lots of coding including FTM and removal of all brake nannies (e-diff is the only one still on)
-aluminum mickey mouse flange, crank seal plate, brake line for coolant line (mcdonalds straw), new waterpump/thermostat/serp belt, pulleys, etc.

Here's what I'm looking to add

-LSD (wavetrac, mfactory v2 clutch or diffsonline 35/60 3 clutch)
-SS brake lines
-Brass brake guide pins
-Apex SM-10 18x9 with 255/35 square tire setup (or pick up two 8.5" 287 wheels for the front)
-Accusump 3 quart
-bimmerworld aluminum pedals

All in, about another $6,000 in running gear.

I'm just looking for a fun and somewhat reliable HPDE car. Don't really care about being the fastest driver on track. My car handles great, just the entire rod bearing issue scares me a bit.

Am I nuts for doing this?