Hey, I have the Weapon-R (I believe formerly known as "MMR"?) 4-2-1, which was used on mine. I never dyno'd it, but never had any problems. I'm in so cal, and still have the original box to ship it, too. Let me know!
I totaled my beautiful limited edition scion XB, but bought a brand new battery just before it happened. Battery is NOT damaged in any way, it just doesn't fit any of our other vehicles. I paid $160 for it and I'm only asking for $100.