Accurately set the electrode gap on your spark plugs with this gap-setting tool, supplied with a set of shims in thicknesses from 0.04 to 0.88 mm.
Ideal for avoiding misfires and optimising ignition on both original and prepared engines.
Setting the electrode gap on spark plugs is fundamental to obtaining a stable ignition.
The wrong gap can cause :
- misfiring
- cutting out at high revs
- problems under load / overcharging
- irregular combustion
With this tool, you can adjust the gap in a clean and controlled way:
-
screw your spark plug into the appropriate tool
-
adjust the electrode gradually
-
check the exact value using the shims supplied
✅ This is the ideal tool for :
- turbo / compressor
- E85
- track / drift
- high performance ignition
⚙️ Kit contents
- ✔️ 1 spark plug gap adjustment tool (any diameter)
- ✔️ 1 set of shims: 0.04 mm to 0.88 mm
📐 Technical specifications
- Type : spark plug gap adjustment tool
- Available diameters:
- M10
- M12
- M14
- M16
- Application: spark plugs
- Shim measurement range: 0.04 mm to 0.88 mm
- Function: precise adjustment of electrode gap
🧰 Applications
- Spark plug adjustment on original engine
- Prepared / turbo engines
- Track preparation / drift / trackday
- Ignition tuning
- Diagnosis of misfires / cuts under load
🔧 Autosport Discount Tips
- Always adjust the gap before fitting
- Check each spark plug (do not assume they are identical)
- On turbo engines: often smaller gap recommended (depending on pressure and coils)
- Never force the electrode: adjust gradually
✅ Product benefits
- ✅ Precise and repeatable adjustment
- ✅ Prevents misfires
- ✅ Improves engine stability under load
- ✅ M10 / M12 / M14 / M16 compatible
- ✅ Complete set of shims included
- ✅ Compact and simple tool
- ✅ Perfect for turbo & E85 engines
- ✅ Autosport Discount workshop quality
























