Spark Plugs, ignition advancer, velocity stacks!?!
 

i was going to do some tune up stuff to my 02 f4i soon. i want to replace the spark plugs but i want to make sure i get the most performance out of them. which spark is the best? also i was wondering about a ignition advancer as well for my bike. will a factory pro one give me any help in the performance area. ive already done a ton of stuff to my bike so this is a bit more. The last thing is that ive read about velocity stacks and i understand what they do. im having a hard time finding some for my bike. does anyone know where to get stacks for an 02 f4i?

RE: Spark Plugs, ignition advancer, velocity stacks!?!
 

don't worry about the mechanical ignition advance, get the dynojet ignition module instead. it's a little more expensive but it will give you more flexability for tuning. as for sparks.. check this link out.

http://cgi.ebay.com/ebaymotors/ws/eB...:IT&ih=018

that's a ~$30 plug from a dealer.