NGK Iridium Spark Plugs, 03-05 Neon SRT-4 / 03-07 PT Cruiser GT
Model Number: 220143
Price listed is for a set of four!!
These spark plugs are the most popular, and best spark plug available for the 03-05 Neon SRT-4 and 03-07 PT Cruiser GT.
Why? Well, they have excellent heat durability, help provide a consistent spark that will help you have a smoother idle, eliminate any stumbling, and maximize power!
These are available different heat ranges:
- Stock heat range (LZTR5AIX-13)- Stock heat range is for cars that are BONE stock with no increase in boost.
- 1 Step Colder (LZTR6AIX-13)- Colder range, is for 90% of SRT-4 drivers out there, who have increased the boost with a good number of bolt on mods.
- 2 Steps Colder (LZTR7AIX-13)- For big turbo, big turbo engines only, in the 450+hp range.
Recommended spark plug gap for the Neon SRT-4.
- Stock Turbo, OEM Boost Level: 0.038"-0.040"
- Stock Turbo, Modified & Higher Boost Levels: 0.032" - 0.036"
- Big Turbo: 0.028" - 0.032"
- The higher the boost, the smaller the gap you should be using!