You will also need injectors.Dsm 450s run about 50bucks

how much boost do you want? You might need bigger injector,make sure you find out was the ressistance in your stock injector befor buying hi/or low.but if you get a good deal you can always get ressistor on wire or ressistor box,also a chip on your p28 would help,but tunning is best,i would not recomend to go cheap unless you dont care about the car,do lots of serch on line get to know similier builds,is realy not hard but takes lots of time and dot bolive ebay if it tells you bolt on,or you will have a rude awake,sorry for the spell bro,if i miss spell,hope some things helped;D dont forget to upgrade fuel pump,down pipe,straight tru muffler,dont want back pressure.

There is somothing i would realy recomend! oil filter adaptor they sale on ebay realy cool! no need for taking any snsr. off your block for oil feed line. this plate go between oil filter and block,clean,less work,and has 2 other adaptors for a oil pressure and oil temp if latter you would like to add