Spark plugs?

[CobraG]

What are y'all using?

 

[Vinnie_B]

Brisk Silver Racing (GR-10S) Gapped @0.025"

2013 Shelby GT500 SS (Runs Flawless)

Brisk Silver Racing GR10S Spark Plug

GR10S Brisk Racing Silver Spark Plug Brisk SKU - GR10S Parameters: Thread Diameter 14mm Thread Reach 18mm-.708" Hexagon 16mm-5/8" Seat Type Tapered Design Silver Racing Resistor Yes Projected No Heat Range - 10 Brisk GR10S Replaces:Popular Applications:Chevy LSx Ford 4.6/5.4 2-Valve and...

briskracing.com

 

[2011 gtcs]

NGK TR7IX, or Brisk plugs are good choice as well. Just gap them at .28 to .32, depending on pulley size.

 

[GTMAN212]

NGK TR7IX

 

[Norton]

NGK TR7IX

 

[03cobra#2]

I run NGK TR7IX in my 03. 25 lbs of boost, gapped at 024 and they drive great.

 

[1Kona_Venom]

NGK TR7IX

yes. It's what my tuner suggested.