Review on Pack of 4 Autolite XP3924-4PK Iridium XP Spark Plugs by Nicholas Lim

Name: Pack of 4 Autolite XP3924-4PK Iridium XP Spark Plugs
Item: Pack of 4 Autolite XP3924-4PK Iridium XP Spark Plugs
Rating: 5

September 13, 2022

1996 Miata: Parts

Replaced a set of NGK spark plugs on a 1996 Miata with these Autolite Iridium spark plugs. Noticeable improvement in starting speed and engine smoothness. Changed exhaust sound, slightly more hum and clearer noise when shifting gears (full exhaust). All in all these are great spark plugs and they fit my Mazda perfectly.

Pros

This Is Awesome

Cons

Modern

New products

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