s14 intercooler replacement

i need help wif my s14 200sx (aus model) one of my intercooler fins have been dented leaving an opening to the end tanks. would neone know how much power or psi im loosing? and im looking for a replacement , not into gettin big front mounts just yet and ive come across a r33 gts-t stock intercooler, would this intercooler fit in my stock s14 side mount spot? and is it posible to retain the factory intercooler piping and just change the intercooler core and tanks?