hey guys been meaning to sign up for years but didnt need to til i had a question to be answered i have a stock 2L blacktop 180sx with a 3" full exhaust im in the process of taking my t25 of and raplacing it with a t28 bush bearing *** sort of kw difference will this make leaving it on stock boost ps. also just side mount intercooler

Should be the same hp numbers at the same boot psi as the t25. The only difference should be where in the rpms the turbo spools up if there is much of one between the two.