advise on taking my RB20det out for RB25det

[jrock7885]

Hi guys and gals,

I currently have an rb20det in my s13 and i have purchased parts that are in the closet ie t3/t4, luv fab mani, nismo f/p regulator, greddy profec b boost controller, tial 38mm wastegate tahts all for now because i am cosidering ordering an rb25 and dont want to waste money on more parts for rb20. So what do you guys think I should do in my situation?

[RustspecS13]

Get a Z32 ecu and have carl h repin and tune it.

Plan on a new drive shaft too, as you'll need a custom one for the bigger/stronger rb25 transmission.

~Alex

[lyon23]

I say order the 25 and slap all those parts on. You can get a rb25 with no transmission and cut harness for $1200 or so. Just re-pin or rewire the rb20 harness no it.