Denso IKH01-24 Iridium Spark Plug – Performance Upgrade for Audi RS3 & TT RS (2.5 TFSI)
Premium long-life iridium plugs designed for tuned 2.5 TFSI engines. Ideal for cars running performance software and/or higher boost, delivering stronger ignition stability under load and improved reliability compared to factory plugs. Direct replacement for OE 06K 905 601 M.
Sold individually – order 5 pieces for a complete 5cyl set..
- Heat range: 24 (Denso scale)
- Thread: 14 mm, hex: 16 mm, reach: 26.5 mm
- Fine-wire 0.4 mm iridium center / 0.8 mm nickel ground electrode
- Optimized for higher boost & performance software
- Replaces OE: 06K 905 601 M
Compatibility: Audi TT RS 8S (2.5 TFSI), Audi RS3 8V.5 (facelift, 2.5 TFSI).


