The RENNtech performance spark plug upgrade utilizes high quality NGK spark plugs in a cooler heat range than the OEM Bosch plugs.
With the increased performance and boost pressure generated from performance tuning comes increased combustion temperatures. With OEM plugs, this additional cylinder pressure can cause pre-ignition and premature spark plug fouling.
Our performance spark plug package uses a “colder” heat range plug which allows spark plugs to fully ignite the mixture and allow the engine to maintain higher boost levels across an extended RPM range.
This plug upgrade also improves idle quality and is the perfect replacement for vehicles experiencing spark plug or rough idle issues.
- Kit comes with 8 spark plugs
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