they are all the same. Supra MK3, Supra MKIV, Mustang, Trans Am, Camaro, DSM, Stealth /3SI will all use the same pump. its basically universal.

only a few are Drop-in like the Denso 190 lph, but thats too small to bother with. if yoru gona go thru the trouble, get the 255HP or Supra TT pump.. i know Supra pumps have to be zip-tied to the pump assembly before dropping into the tank. so, it could be the same for the Walbro... im not sure since our car CAME w/ the 255 already installed.

the DSM's have problems getting full voltage at ANY RPM... we are about to turn the 4GA speaker amp cable into the power cable for the fuel pump... no voltage drop here