Hey guys,
So I'm thinking I need to change my plugs on my 4.7 since I don't know when the last owner changed them or even touched them. It's at 75k miles but anyways I was on auto anything and found these pulstar performance series plugs, now how good are they? Do they actually give more power?
They claim to give you 12% more hp and torque which I don't know is true.
Thanks

 

I have these in my hemi and they work great. As far as the hp and torque, I notice the biggest difference in throttle response and acceleration. They are great plugs and i highly reccomend them. Sparkplugs.com has the best price.

 

Most guys will tell you to go back with OEM plugs. For the price on the Pulstars v/s OEMs, I did OEMs. I ride hard and fast and never miss a beat or skip. But how much money did you say you have again?

 

Champion copper plus all the way........and they won't break the bank on ya.

 

I'd do copper core plugs. Copper cores should perform the best, but they will need to be replaced every 25k or so to maintain the best performance.

If you want something that performs a little better, the dak guys with 4.7s prefer to go a range colder with NGK 4644s or Autolite 3923s.