i have a ?. i used to have a firend who owned a 89 crx si with a swapped b16 turbo. i dont remember what part it was he had but when he lined up to race he would rev up the engine and then press a button and it would make the engine sound like it was redlining but it was jus actually holding it at the rpm my friend told the thing to hold it at... what would that be??? anyone kno..?? a rev holder launcher?!?!?!? idk anyone kno??!?!