All awesome info! I definitely want a catch can as soon as there is less chance of winter sneaking up on us! I already need to replace the pcv valve on the gti. A good tune will have to wait until I get a better downpipe and probably after suspension upgrades as well...maybe not cause sometimes squirrelly is half the fun! BTW... [email protected] ..... manuscript, novel away! I love learning new stuff from who ever is willing to give!