CenFL Avalanche
Full Member
- Joined
- Aug 16, 2014
- Messages
- 171
I installed Taylor spark plug wires from Summit Racing last year on my 2007 5.3 Avalanche. They were custom fit and less than $100 for the set. The motor is much smoother now; no sign of knock, and a little better gas mileage. Part: Taylor 409 Pro Race Spiro-Wound 10.4mm Spark Plug Wires 79206