RB25 turbocharger compressor inlet OD?

[mello88]

Quick question..

My RB20DET turbocharger has a 2.25" OD compressor inlet.

Is the OD of the RB25DET turbo compressor inlet the same size?

[BoostFab]

it's about the same size

[mello88]

Thanks I guess...

I need to know so I can buy a silicone reducer to connect to 3" intake elbow. I picked up 2.5" reducer and it is 1/4" too big on my RB20 turbo. I'm getting an RB25 turbo and would like to know if I can use the same 2.25" ID reducer.

[Shocker]

I just measured my 25 inlet, its 2.25 as well.

[mello88]

Woohoo thank you dude!

[jobestudios]

does anyone know the inside diameter of the 3 bolt flange off the rb25 downpipe, gotta order flanges...

[l0nestar]

I just checked my stock 25 down-pipe and it is 2.5". There you go.