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Welcome to the Alvis TF 21 Spark Plugs Center at Andy's Auto Sport!
At Andy's Auto Sport, we have a huge variety of Alvis TF 21 spark plugs to ensure that you have every spark plug option available to you. We go out of our way to carry every major line of Alvis TF 21 spark plugs, so that whether you are looking for replacement Alvis TF 21 spark plugs or performance spark plugs or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your Alvis TF 21 spark plug needs!
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» WHY TO BUY?
First off, your TF 21 engine won't run without spark plugs - it won't even turn on without them. So, in that sense, you have no choice but to use spark plugs. However, beyond that, the proper TF 21 spark plugs can improve performance and fuel economy, especially if your current spark plugs have been in use for a while. Some people change their TF 21 spark plugs at every oil change, some change them annually, and some go by a specified mileage interval. Whatever your preferred schedule, you should inspect the plugs as often as possible, especially if you are experiencing hesitation or missing, or after you have made modifications to your engine.
» DID YOU KNOW?
Spark plugs convert your TF 21 engine's air/fuel mixture into energy by igniting it in the combustion chamber, making them one of the most important components in your ignition system, not to mention your engine itself. As critical as they are, it seems that they are neglected far too often and aren't given enough consideration when making performance modifications. Choosing the proper heat range for your TF 21 spark plugs is just as important as making sure that the plugs are gapped correctly, so keep this in mind when choosing plugs for your stock or modified TF 21 engine.
» MODEL YEARS COVERED
1966 TF 21
1967 TF 21
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