Which one should I go for? I've heard cometic u can hold some good boost/high hp, but they cost a bit more...

then there is felpro 1074, which is a bit cheaper but do a very good job as well...

so which should I go for?

this is for a turbo LT1 boosting around 10psi, and around 15psi in the future (once i upgrade the drivetrain and get GT67 which will be like next year)

 

I have cometics and I`ve heard they are the best for FI.