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- mcgranna (5919)- Feedback left by buyer.More than a year agoVerified purchaseGood buyer, prompt payment, valued customer, highly recommended.
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Reviews (23)
Feb 25, 2020
Trailblazer LT 4.2L
1 of 1 found this helpful With this product I feel there is more of a low mid to high rpm range improvement. I have been running these plugs for a short time, but what Im experiencing is well worth it, as for longevity the manufacturer is saying a 100,000 miles, we'll see only time will tell.
Aug 14, 2018
HD Alternator 300 Amp
So far running like a champ.
Mar 16, 2021
Works
Does what it is made for.👍