i have mazda protege 97 the motor z5 1.5 how i can get my car get little horsepower to the motor or putting another injector can anyone tell me i will approciate thanks .

 

I have a 98 with the z5 and what i did to get very little extra horsepower without buying anything was advance the timing. To do that mark a line on the distributer and loosen two bolts one on each side of the distributer that are on brakets that have a slot on them. Then rotate the distributer tword the the firewall just slightly enough so that the line you marked is just barly broken. This will give you like 1 or 2 extra horsepower.

 

I forgot to say DONT ADVANCE IT TOO MUCH OR YOU WILL GET A SPARK KNOCK!!