NGK (6458) PFR6Q Laser Platinum Spark Plug, Pack of 1

Had computer show misfiring on a few occasions before I decided to change the plugs. I found these on Amazon, maybe not the best price, but still OK. These plugs are the original OEM plugs for stock 1.8T's. Many people use Copper plugs, I picked Platinums as they are known for longer life. Also, they supposedly come pre-gapped, but always check yourselves the correct gap for your model/year. Haven't had any problems since I swapped out the originals with these.

These are a great plug, that I got lots of miles on, even in what I would consider to be extreme conditions.

I bought 6 of these to replace the plugs in my 2001 Audi S4.

I had been running a AWE Tuning Stage III tune (K04 Turbos, green top injectors, upgraded MAF housing, and a stage III chip) At the time I had the car out in the desert of southern california, which is just about the worst environment you could imagine for a performance car. 91 octane at best, with 15% ethanol, 100+ degree temps, sand, and no moisture. With my stock intercolers, my intake temps at idle were frequently 65 degrees celsius.

Anyways, the plugs persevered through all that, getting me 4 solid years of use before I replaced them, in Ohio, when cold starting resulting in rocky idle. Replacing them cured the rocky idle, but didn't clear up the rough motor when I would first pull away. As such, I've determined that my problem wasn't the plugs so much as the miles on...Read more

FIrst off I own a 2003 Audi a6 2.7T with 183,000 miles STRONG... I had the egine light on for MISFIRING IN ALLLLL CYLINDERS, HORRRIBLE GASS MILEAGE and a coolant temp sensor code as well.. AFTER I had gotten my timing belt and both gasket seals changed for 1,300$ and im like, Ok wtf did I just pay all this money for, which is not bad I had that work done at an Independent Porsche mechanic in Stoughton, MA compared to Audi's 2500$ it was pcket change.. (in a sense) lol... But I bought these spark plugs from Amazon, my first purchase from them ever becuase they have them listed for the lowest price on the net at 10.32 pluss free shipping, and comparing that to 15$ ++ for 1 spark plug at Audi or anywhere else.. THe NGK Platinum Spark Plugs are OEM direct replacements that Audi uses so I went for it. Changing the spark plugs not only increased my MPG after but as well idled the engine a heck of alot better after..... I really appreciate these plugs, and you may even get a little extra...Read more