Just a little light-hearted rub-in for you guys. I just passed my 13th month with my 2006 V6 Accord EX-L obtained after I sold my '99 540/6 to M3UOND. In my 13 months, from 14K to 32K miles, the only thing that broke other than normal maintenance was a $6 plastic marker light lens on my driver's side door panel. And yes, it still scoots - not AS FAST as the 540, but within an acceptable percentage for me (maybe 90%).
But here's what I thought you'd find interesting - the cheap add-on sway bars from the Acura TL. Seems 2004+ TL sway bars are a good OEM upgrade to the stock 7th-gen Accord, much the same way M5 stabilizers can be retrofit to a 540! I like my AV6's damping, but was not fond of the body lean. So I upgraded with the new TL Type S rear bar, which provided an increase from 13mm to 20mm abaft, but up front went with the "normal" TL bar (hollow 27.2mm versus the Type S' solid 27.2mm, versus 25.4mm hollow stock). I wanted a bit less understeer than I'd read many experienced with the All TL-S setup.
Cost? This is the good part: BOTH F & R bars, brand new, with pivot bushings and brackets were - get this - $63 from Sunnyside Acura! Another $15 put them at my doorstep, for a grand total of $83.
Install was 540-easy on the rear, and the front was easier than with my 540's front bar. Yes, the subframe still had to be unbolted, but the engine didn't have to be unbolted or supported, nor did suspension arms need removal.
Handling admittedly hasn't yet been transformed into M3 territory, but it now corners with a flatness close to on par with my erstwhile 540. It hasn't the balance or the pure tire traction of the 540 (running 215/50-17 all-seasons), but it's much improved.
I'm not saying it's an equal driving experience to an E39 540 or even a 528/530, but still much better than many folks give it credit for, and the handling upgrade (available to those with I-4 Accord as well) was just too cheap to pass up!
It's been fun spending the time with my kids this past year and not under the car!
Yet I still try to keep tabs on the werkz forum from time to time!