Fits: Kia Stinger GT 3.3T (3.3TT).
What this is
A set of six HKS Super Fire Racing M45iL spark plugs, HKS part number 50003-M45iL, for the Kia Stinger 3.3T. We recommend them for tuned cars, including cars running a piggyback.
Design
- Iridium-alloy centre electrode, which HKS says lowers the voltage needed to fire the plug and improves ignition and durability
- Square platinum chip on a shortened, reshaped outer electrode, made lighter to resist vibration
- Thermal edge on the insulator and a spark support gap to help prevent carbon build-up
- Long-reach type: 14 mm thread, 26.5 mm reach, 16 mm hex
- Heat range: M45iL, which HKS lists as equivalent to NGK heat range 9
Gapping
We gap every plug to 0.025 in (about 0.64 mm) before it ships. If you want a different gap, put it in the order notes. In our experience 0.025 in works well on turbocharged Hyundai and Kia engines, even with hybrid turbos.
Options
- Set of: 6 is the only value: six plugs, one for each cylinder of the 3.3T V6.
FAQ
What gap do you set?
0.025 in, unless you ask for another gap in the order notes.
Which heat range is it?
The M45iL. HKS lists it as equivalent to NGK heat range 9.
Where can I read HKS's own description?
On HKS USA's Super Fire Racing M-series page.