Aurora 3000 to 4000

[Duramax3000]

Been thinkin about swaping out my 3000 to a 4000, just wondering what type of difference to expect and what hp numbers have been seen with a 4000 with just turbo and tune, and all out (for later on) like tips, rods and twin cp3's?

 

[Moore Power]

Been thinkin about swaping out my 3000 to a 4000, just wondering what type of difference to expect and what hp numbers have been seen with a 4000 with just turbo and tune, and all out (for later on) like tips, rods and twin cp3's?

Well worth the time and money