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Quantity
1
Description
5.0
37 ratings
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1
I had 1 ok 4 hks pluggs break and had crammed a standard plug in to be able to drive it. I have replaced all 4 with these and the gas mileage has improved slightly and of course it is running smoother. So all in all I think these are fine.
Anonymous · December 29, 2023
Shipping was fast as always. I will note that these plugs came gapped at 0.024, I installed them and the ride was pretty strange. Okay at low end but would delay when you'd out the pedal down. Asked David, he promptly replied they should be 0.028. took them out and regapped, all seems to be well. Very linear power so far. Overall okay, but they didn't come gapped correctly, though no fault of k5. Just be sure to confirm the gap, as you should do anyways. Overall great service from David as always.
Anonymous · December 29, 2023
Make sure you have you plug gapping tool handy and once you fine tune the gap these plugs should be good. I could not believe how badly worn my OEM plugs were worn at 46,000 - definitely needed to to be changed
Anonymous · December 29, 2023




