Originally Posted by rangerrunner3.0
omg i installed them with my heavily modded engine. and i was like ok maybe ill see a same increase. nope. it was a huge increase. the dyno at work said i had huge gains. almost unbelievable gains. this product has my vote.
To be honest i only expected to see about a 5 hp. gain at the tires in my testing. You can imagine how surprised i was when i got a 20 hp. gain on my mild 3.0L.
I new people would find it hard to believe but the numbers don't lie.
rangerrunner3.0 with the mods you listed in a earlier post that 3.0L of yours should run really well.
I am very interested in your dyno #'s.
I might have to get me a set of heads worked over.