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Old 03-26-2010, 03:20 PM   #8 (permalink)
tangomar
EcoModding Lurker
 
Join Date: Jul 2008
Location: US
Posts: 76

sukisuki - '00 Suzuki Grand Vitara 4wd
90 day: 21.88 mpg (US)
Thanks: 1
Thanked 15 Times in 6 Posts
I had Halo and they gave me ~1.5mpg more consistently.
But I burned my coils (after a couple of years). Don't know if it was the sparks of just my car (it is 10 years old).

I just bought the E3 and I'll try them soon (pain in the @$$ to change plugs in my car).

Be careful in regards of the resistance. You should always put a plug that matches the coil inductance (I mean what the OEM specifies). If you change it too much you get extra current reflections at the spark and that pulse goes back to the coil.

Best thing to do is to mod your recommended spark plugs drilling a hole.
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