Review on 🔥 NGK PFR6Q Laser Platinum Spark Plug: Enhanced Performance for Optimal Ignition - Single Pack by Brett Islam

These are excellent spark plugs that I have driven many miles on, even in what I would call extreme conditions. I bought 6 of these candles to replace the candles. in my 2001 Audi S4. I used an AWE Tuning Stage III setup (K04 turbos, green top injectors, upgraded MAF body and a Stage III chip). I had a car in the Southern California desert at the time, which is about the worst conditions imaginable for a high performance car. At best 91 octane, 15% ethanol, 100+ degrees, sand and no moisture. With my standard intercoolers, the intake temperature when idling was often 65 degrees Celsius. However, the spark plugs held up and gave me 4 full years of use before having to replace them in Ohio when a cold start resulted in rocky idle. Replacing them cured the rough idle but didn't fix the rough engine when I first pulled away. So I found that my problem wasn't so much the spark plugs as it was the car's mileage (around 130,000) and most likely an incomplete lookup table in the cold start part of the chip. I assume they depend on the ECU serial numbers, but that doesn't account for the different injectors and therefore the car won't run properly until it reaches temperature. Bottom line - this is a great candle. These are OEM plugs for 2.7t and 1.8t engines and the fact that AWE tuning kept these plugs even in Stage III tuning (460hp!) is a testament to their performance and reliability. Buy with confidence!