Just finished this job today. This was not an easy job.txstigs puller works good on all coils but the rears near the firewall. Took me about 2 1/2 hours. I broke one of the coils trying to pull it out it was so tight. The coils and plugs near the firewall were extremely difficult to remove. I had to use a hanger to get the coils off near the firewall. I can change my plugs in my 98 Z3 with my eyes closed in about 15 minutes.
I think with this tool the rear plugs near the firewall would be much much easier. This tool is a must next time I change my plugs:
http://www.ebay.com/itm/Tite-Reach-1...item5d3d8f404f
After the plug change Idle is definately smoother and I do feel smoother throttle.