I'm going to inspect the plugs on my 08 Shelby. It's running well, and is a low mile car, but have read that the plugs should be replaced fairly frequently as insurance?
I suspect the plugs will be the NGK's.....which version, I'm not sure. My car has a 2.6 pulley and tune, so looking at the TR6xi's which I believe would be good for my boost level (11-12 PSI - according to stock guage).
Anyone else running these plugs and have good experience with them?
I suspect the plugs will be the NGK's.....which version, I'm not sure. My car has a 2.6 pulley and tune, so looking at the TR6xi's which I believe would be good for my boost level (11-12 PSI - according to stock guage).
Anyone else running these plugs and have good experience with them?