BI6 is allright but LS motor is underestamated big time a stock ls could beet a stock SI no problem...its just about the driver.......just gatta make sure u fuk that SI off the line good ..just there 3rd gear vtec.. u have to be worred about;;;..like all v-tec cars thats when they ganna start to pull on u...even GSR and TYPE R..LS ganna beat them off the line no problem just watch for there 3 gear when they hit v-tec. then u got fuked.if ur car not dun up.....but a done up LS wit sum work well thats a differnet story....ALL MY NON V-TEC integs..reply back if u know what im talking about,,,