[AA950]

Not trying to thread bash, Do these actually make a difference compared to OEM? I see on their website saying 15hp gain but i call shenanigans on that

Thanks

 

[Nothubertjfarnsworth]

there was a post on ls1tech some years back showing a very, very small gain. on the level of like 1-3 whp across the range. could be attributable to dyno error or any other handful of reasons, though...

 

[Ronin Concealment]

I don't know

 

[Westphal]

Dyno standard deviation or misfiring plug wire. Richard Holdener explains it best: if it's working, it's working. He talked with spark plug manufacturers recently and none of them want to make plug wires for the LS platform (or any other modern engine) since there aren't gains to be made.

 

[AA950]

ok cool. They do look really pretty though