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GMC Tornado Fuel Saver

We have 5 Items In-stock.
$5.95 List Price $8.99 Save $3.04 Availability: In Stock
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 25.4 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel (see more)
  • SKU#: PYRE366
  • Brand: E3
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Nickel alloy
(see more)
Fits the following GMC Models:
  • Envoy XL | 6 Cyl 4.2L | SLE, SLT
  • Envoy | 6 Cyl 4.2L | SLE, SLT
(see more)
Rating: (see review/s)

"before i bought the E3 spark plugsmy vehicle use to consume more fuel drugjerkfeel heavy like i was driving a heavy duty truck.it also use to have a time lag when the accelerator was pressed. Nowits lighthas more powerno time lag and does not jerk or drug and consumes less fuel." posted by: zebode on January 31, 2013

"I put these plugs in my truck about 1 year ago and now there is no other plug I will use you get more miles per gal and more power to use any other you should have your head ex-ray" posted by: rich on June 12, 2012 view all 4 reviews

$5.95 List Price $8.99 Save $3.04 Availability: In Stock
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 19 mm reach, 0.81 in. hex size, gasket seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel (see more)
  • SKU#: PYRE346
  • Brand: E3
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Nickel alloy
(see more)
Fits the following GMC Models:
  • Truck | 6 Cyl 5.0L | Base
  • 1000 Series | 6 Cyl 5.0L | Base
(see more)
Rating: (see review/s)

"These spark plugs are impossible to screw in. The thread is good and can go into the engine but the bolt you have to use to screw it in has to be paper thin since the overal spark plug is too fat." posted by: Car person on February 9, 2011

$5.95 List Price $8.99 Save $3.04 Availability: In Stock
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 17.52 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.5 mm non-adjustable gap size, copper core electrode material, nickel (see more)
  • SKU#: PYRE362
  • Brand: E3
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Nickel alloy
(see more)
Fits the following GMC Models:
  • Sonoma | 6 Cyl 4.3L | SLE, SL, SLS
  • P3500 | 6 Cyl 4.3L | Base
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Rating: (see review/s)

"I replaced 4 original spark plugs with E3s. Car ran well for 57 miles then picked up a misfire. I checked everything but the spark plugs trying to figure out what was wrong. I had changed plug wires and coil pack at the same time. After exhausting all else I pulled the brand new plugs only to discover the #4 plug was not firing properly. Replaced it and the car is fine. All plugs will be replaced now! I have never had a brand new plug short out in my 45 years of working on my own cars." posted by: Jim on October 3, 2011

"dont recommend in a 1999 chevy cavalier 2.4 l. they make the engine misfire. had to change back to the good old double platinum and the misfires stopped." posted by: on January 22, 2011 view all 5 reviews

$5.95 List Price $8.99 Save $3.04 Availability: In Stock
  • APW Bestseller
  • Low Price Guarantee
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 17.52 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel (see more)
  • SKU#: PYRE354
  • Brand: E3
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
(see more)
Fits the following GMC Models:
  • C2500 | 8 Cyl 5.7L | Sierra SL, Sierra SLE, Sierra SLT
  • K2500 | 8 Cyl 5.7L | Sierra SL, Sierra SLE, Sierra SLT
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$5.95 List Price $8.99 Save $3.04 Availability: In Stock
  • APW Bestseller
  • Low Price Guarantee
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 17.55 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel (see more)
  • SKU#: PYRE344
  • Brand: E3
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Anticipated Ship Out Time: 1-2 Business Days
  • Electrode Tip Material: Nickel alloy
(see more)
Fits the following GMC Models:
  • Savana 1500 | 6 Cyl 4.3L | Base
  • Sierra 1500 | 6 Cyl 4.3L | WT
Rating: (see review/s)

"I replaced by Corvette LS2 spark plugs with Bosch Platinums (had those in my BMW 5-series and they ran great) but noticed that the engine seemed to lack what it once had with the original AC Delcos installed. Heard about the E3's on MuscleCar TV (they tested them in the LS2 for comparison with... you guessed it... the Bosch Platinums) and they got an 8 HP gain. So I tried 'em and zippity doo da, very noticeable power gains. Engine raps up quick with lots of low-end torque, just like it was new. Highly recommended." posted by: Fast Bobby on February 27, 2010

"Have not driven vehicle enough to determine any milage gain, startups are quicker, price was very good" posted by: on August 19, 2009 view all 3 reviews