2014 Spark Plug Thead (Audi S3 8L) Right, First of all Id like to say I have read quite a few threads on this forum about which spark plugs to buy for a 99-03 reg Audi S3. The main contenders seem to be NGK and Bosch spark plugs. What NGK Offers: The two most raved about spark plugs for a standard 210BHP model of the S3 are the BKR6E (Copper) or the BKR6EIX (Iridium). The copper version is said by many to be better for our turbo engines but Iridium as we all no will last a lot longer. What Bosch Offers: The main Bosch spark plug that people seem to speak about on here are theBosch Super 4 which is a 4 tip iridium spark plug. These dont seem to be as popular as the NGK's but look like there more readily available through Halfords and such. So given the little bit of research I have already done. Could anyone advise me on what spark plugs I should buy for my 2000 reg Audi S3 210BHP in the year of 2014 as all the other threads seem to be quite dated. I have a Halfords round the corner from me and they have Bosch Super 4's in stock so was very tempted to buy them today until I started reading the threads. I don't want to adjust the gap myself or modify my coil pack in any way. I just want a straight replacement for the current plugs at the moment. So Get recommending!! You don't have to be an expert in mechanical engineering.. Just post which spark plugs you fitted in your car, How they performed and how long they have lasted.