What is the size of the silicone hose joint reducer you need in order to connect the 3 inch FP turbo inlet to the 2.5 inch stock size inlet elbow?

I need a replacement but the 3 to 2.5 inch reducer appears to be too small to fit over.

What is the correct size to get? 3.5 to 3 inch reducer or 4 to 3.5 inch reducer?

 

Stock what? The stock MAF housing? You can use 3 inch hose on the stock housing no problem. It'd be best to simple make a 3 inch pipe from turbo inlet to the MAF to keep it close to 3 inch. THen just use 3 inch silicone connector on both sides.

 

I used a 3" straight coupler on mine with my 3" AMS intake and FPred, worked fine. The FP cover is 3" for sure, the other side, not sure. Man up on it! Lube it up and force it on

 

I think he wants to connect the stock inlet hose to the FP turbo. I am not sure it's advisable.

I know Cobb offers a compatibile inlet hose.

 

I`m actually running the Blitz turbo inlet, which is same as stock size at 2.5 inch. The FP inlet is 3 inch.

I ordered both the 3.5 to 3 inch reducer and 4 to 3.5 inch reducer just to be safe, one of these should fit.

The problem here is that they all use I.D. as measurement. However, when you buy hose joints you need to measure the O.D. of the piping in order to be able to fit the hose joints over.