Since im in the market for a new battery, i did a lil research. I've read a lot of good reviews, especially from here, about the Odyssey PC545 battery but was curious to see comparisons to a few others...
(stock) Yuasa - 6.88 x 3.44 x 5.13", 13 amp hour, 265 CCA, 13 lbs w/ acid.
ODYSSEY PC545 - 6.82 x 3.38 x 5.13, 10 amp hour, 185 CCA, 11 lbs.
WestCo - 6.88 x 3.25 x 5.25, 13 amp hour, CCA 275, 11.8 lbs
PowerMax - 6.88 x 3.44 x 5.13, 11 amp hour, CCA 275, 11.8 lbs
Power Sonic - 6.88 x 3.44 x 5.13, 13 amp hour, CCA 160, 10.3 lbs.

Seems like the PC545 is more of a west coast battery due to the low CCA, so im leaning towards another stocker since it was a good battery or a WestCo, but it might be to tall to fit, i'll haveta measure the battery box w/out the cusions to make sure it'll fit since its 5.25" tall