I just replaced the coil packs on the 360 today. Man what a difference! Seems smoother, no pops on downshift, just all around better. I picked them up from powersparks on ebay from the UK for ~$50 each. Genuine Bosch. Others on this forum have used them before. $50 on ebay vs $200+ here. No idea how the prices in the UK seem to be so much less.