i want to know if only with the spi twin-charge kit a make 300 whp and how much boost?

 

Maximus's car put down 254 whp with the standard twincharge kit,which is 22 pounds of bbost, to get 300 whp you would need to most likely replace the pistons with something stronger, put a LARGER superchager pully on and up the boost through the turbo. So mayber 28 pounds of boost total i would suspect.

 

300 or so whp is SPI's Stage 2 kit. it involves some reworking of the internals.

 

thank's

 

El diablito is clearing 300whp and then some now looking for 400 next ( no n20 )