The BNR ST71 turbocharger upgrade is intended for cars with auxiliary fuel systems! This turbo is good for up to around 500 WHP. This upgrade takes a little longer to spool over the ST67 (300 RPM) but nets around 100 more peak HP when maxed out. If you anticipate aux fuel system and/or a forged internal engine this turbo would be the best option!
This is what you get when you purchase the ST71!
BNR 3071 G2 Center Housing Rotating Assembly (VSR balanced)
BNR T04B Compressor housing with a 2 bolt inlet (.60 a/r)
BNR 10cm (.72 a/r) exhaust housing
27mm Internal wastegate with heavy duty swing valve assembly