ACDelco Iridium Spark Plugs For LTG
Stock replacement spark plug for the LTG.
Sold in sets of 4.
Customer Reviews
4.8 Based on 4 Reviews
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AR
12/11/2020
ANTONINO R. 
United States KA
11/21/2020
Kevin A. United States CP
08/22/2020
Christopher P. United StatesGreat performance
It was good overall the parts were great and my car runs fantastic! Stage one on the ATS is great boost in performance. We had major issues with the tuners that ZZP use. We were told 24-48 hours for the first turnaround after 4 days they made contact, then it would take at least a full 24 hours for each turnaround after that. I sent an email to ZZP and received no response. That was disappointing.
JS
07/10/2020
Joshua S. United StatesQuick and Easy
As always, ZZPerformance was quick and the spark plugs were as expected. My ATS definitely was ready for new plugs. These did need gapped slightly To what Cadillac recommends, but no issues adjusting or installing. The car drives better and accelerates more smoothly, but it’s too early to tell if I’ll gain a few MPG back that I started to lose with the aging plugs. All in all, I love any ZZPerformance parts for my Cadillac ATS