What car ?
What boost?
What power?
I run a shitty 250 dollar chinese cooler and its currently reached its limits at 420rwhp...
I have ordered a custom 300x600x100 plazmaman fmic with 3 inch inlet /outlet with a new 4 inch exhaust.
The second i get them installed going in for a tune to go for the 500rwkw+ mark....
I domt know What your plansare or what vehicle but best going a decent brand...
Shit cheap onesthat claim hi flow rates dont allow the cooler to do its job properly and doesnt cool the boost enough...
Stick with a decent brand for big boost/hi hp applications otherwiseif youre aiming for under 200rwkw a chinese 250 dollar cooler will be fine