Reviewed By Rick T (WILMINGTON, NC) Reviewed for a 2002 GMC Sierra —1/20/2016 3:13 AM
They fit perfectly between my JBA header and I'm not worried about melting the spark plug boots anymore and shorting out the spark plug.
Reviewed By Matthew R (PAHRUMP, NV) Reviewed for a 2008 GMC Sierra —8/31/2015 4:29 PM
A good set of wires much better than what came off the truck. changed the plugs and wires on my 2008 GMC SIERRA DENALI 6.2 and getting a 1 MPG increase on the hiway planning on getting the ACCEL coils soon as well to complete my ignition upgrade