Audi Ignition Tune-Up Kit - APR 06H905110LKT9

I installed the APR Ignition Tune-Up Kit with APR ignition coils and NGK spark plugs on my Audi at 54,757 miles, and the initial pulls have been excellent. Seat of my pants feel says that there's more power. I had been chasing some fuel-quality-related behavior while running a Stage 1 93 octane tune. My logs showed a long-term fuel trim around −5.8%, occasional ignition correction, and I had previously seen poor fuel quality warnings. After installing the APR coils and NGK plugs, then re-logging the car, the setup looked noticeably cleaner. The LTFT improved slightly to about −5.0%, short-term trims stayed controlled, lambda tracked target well, and fuel pressure remained stable. More importantly, ignition behavior looked cleaner with no concerning repeat timing pull. The car felt smooth, responsive, and healthy under load. This kit is a great maintenance upgrade, especially for a tuned Audi. Fresh plugs and coils gave me a much better baseline for monitoring the car, and the logs support that the ignition system is doing exactly what it should. Installation was as straightforward as an Audi can be (why do you hard route things over a maintenance item?). I know there are supposed to be pre-gapped but I have trust issues, every one was 0.28. I would definitely recommend this kit for anyone running a tuned 3.0T Audi who wants to refresh the ignition system, clean up drivability, and reduce the chance of misfires or timing-related issues under boost. Installed at: 54,757 miles Tune: Stage 1 93 octane Result: Smoother operation, stable fueling, cleaner ignition data, and better confidence under load. Real world test coming up, I'll be chasing Porsches as a photographer for 4 days.