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HomeFuel PumpsBosch 4458 Spark Plug |
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|  | | | Customer Reviews: | | | Average Customer Review: ( 3 customer reviews )
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Most Helpful Customer Reviews
2 of 2 found the following review helpful:
Good plugs. Mar 14, 2010
By Michael A. Becker
My engine runs great with these plugs. I don't notice any performance difference, but these should last a lot longer than the plugs the last mechanic put in. My engine did misfire after installing these, but the problem was worn out plug wires. I installed Bosch wires and the engine purrs now.
1 of 1 found the following review helpful:
98gmc Apr 18, 2010
By Wai Chun Wong
Works great especially these pre-gap plugs..My 98 Safari is 12yrs old just wanted to use the best to pass smog... Beat our main auto supplier..Bosch (4458) HGR8DQP Platinum +4 Spark Plug, Pack of 1
Happily Surprised! Feb 01, 2012
By John Laviolette
I installed these in my 1996 Chevy Pickup this weekend and was pleasantly surprised with the improved "smoothness" of my truck's engine. I had OEM ACDelco plugs isntalled previously, and these really improved things. I'm going to buy a set for my Yukon next.
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