rb20 intake ?? what fits ?

[preston240sx]

so i see all these ad's that say rb20/rb25 intake for sale ... does the rb25 intake fit a rb20 or is that misconception? thx

[nizmo zilvia]

No they dont. But people weld on the RB20 flanges on greddy intake manis or gtr intake manis.

[preston240sx]

ahhh i see so that works .. maybe ... sounds like alotta work ...

[nizmo zilvia]

cut and weld. depending what you get some parts might not work and you'll have to do custom stuff.

[skrappy]

Ya you can custom make a flange and weld it on or i believe you can buy a kit for it. most places that say 20/25 you will need to just ask them and see if they do sell it or not ie: Phase2motortrend, 240sxmotoring, etc.

Just remember that the intake plenum isnt all there is. You will have to source new throttle cables and new throttle body or bodies depending on if you do the RB25 or the RB26. If doing the stock RB26 intake then you will have to source the throttle bodies which i can imagine are a little difficult to come by in the states. i can tell you now that doing the 25 intake on a silvia in the states you will need to use an S14 throttle cable due to almost the extra foot compared to the 13.