Hi, I have a 99.5 audi a4 avant quattro 1.8T. Which has GS VBL engine management and a K04 replacement turbo as well as a 5 bar fuel regulator. I've only owned the a4 for three months so I'm at a bit of a loss.

Having said that I have accumulated a misfire error and wanted to know what type/brand of spark plugs would be best? I have heard many things from NGK iridiums to only run Audi plugs...

Any insight into this would be greatly appreciated!

 

NGK's are good plugs and arent to expensive...
but if you want top of the line **** go with Densos...does ****** are like 7-10 bucks a piece....

 

if you dont mind changing them every other oil change, NGK BKR7E are good for a chipped car, BKR6E for a stock car. those are strait copper so they wear faster but throw a hotter spark then other metals would.

 

bosch f6dtc are a little more expensive than the ngk's, but they last ~20k miles, and don't need gapping. although its a good idea to do an initial gapping see if they are consistent, in case they were dropped. never had a problem with them, and they are run on 600+whp cars. won't ever use ngk's again