Granatelli Motor Sports High Performance Ignition Wires; 11-Inch; High Temp Black (99-18 4.8L, 5.3L Sierra 1500)Find parts that fit my vehicle

Description. Direct OEM replacement, exceeds OEM specifications, OBD-II computer safe

Increase power to the spark plug up to 400% over stock

Customers have reported up to 15HP (normally aspirated) & 35HP (s/c, turbo, & nitrous). Average gains on an otherwise stock motor are 5hp N/A and 12 to 15 with factory forced induction

0 Ohm resistance, no RFI / EMI interference thanks to patented protector ring

Patented* design works with all fuel injection systems, street cars and race cars

Solid stainless connector cable with stainless snap lock spark plug connectors

High temperature silicone boots, 8MM jacket with fiberglass-reinforced braid resists temperatures up to 500 degrees f (1200 degree f. boots optional).

Ideal for use with aftermarket headers and/or turbocharger systems

Includes all necessary hardware

Over 600 fitments!

*Granatelli O ohm wires are patent protected by United States Patent number 7,185,622. This patent covers our unique method of producing ignition wires of extremely low resistance while maintaining very high noise suppression. The benefit of this invention is that full electrical energy from the ignition source is transmitted to the spark plug. The end result of the application of this method is increased horsepower, torque and fuel economy.

Fitment:

• 1999 GMC Sierra 1500
• 2000 GMC Sierra 1500
• 2001 GMC Sierra 1500
• 2002 GMC Sierra 1500
• 2003 GMC Sierra 1500
• 2004 GMC Sierra 1500
• 2005 GMC Sierra 1500
• 2006 GMC Sierra 1500
• 2007 GMC Sierra 1500
• 2008 GMC Sierra 1500
• 2009 GMC Sierra 1500
• 2010 GMC Sierra 1500
• 2011 GMC Sierra 1500
• 2012 GMC Sierra 1500
• 2013 GMC Sierra 1500
• 2014 GMC Sierra 1500
• 2015 GMC Sierra 1500
• 2016 GMC Sierra 1500
• 2017 GMC Sierra 1500
• 2018 GMC Sierra 1500

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