Srt4 2 Step Colder Plugs

If you have over 25 30 000 miles on your spark plugs or if you have increased the boost on your caliber srt 4 then its time to change your spark plugs.

Srt4 2 step colder plugs. R5671a 10 has a heat range of 10. A colder plug would be r5671a 11 heat range 11 a hotter plug would be r5671a 9 heat range 9. For ngk racing plugs the heat range is located after the hyphen. Recommended spark plug gap for the neon srt 4.

I dont see how i failed to answer your question. 2 steps colder lztr7aix 13 for big turbo big turbo engines only in the 450 hp range. You wil more then likely need 1 step colder maybe even 2 steps colder depending on your power level. They sell 1 and 2 step colder plugs.

These plugs improve acceleration eliminate stumbling under boost. These spark plugs are the most popular and best spark plug available for the 08 09 caliber srt 4. These are displayed as a 2 or 3 digit number after the hyphen. 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.

Ngk iridium plugs are the best plug we have ever tested in turbocharged cars.