Looking at the intake tube on the S&B it looks like it tapers down to 3" to match up to a stock turbo. I have a 4" intake tube , does anyone have a fix for this issue? Or am i seeing things.
Thanks, Roy.

 

The S&B intake tubing only extends the the coupler in which the PCV vent tube is in. From that point to the turbo is OEM.

 

ok, but my intake tube is 4" from my 6637 filter right to the turbo. How would the S&B intake tube work?

 

You are going to need some parts. What are you running for a turbo? 38R or something with a ported housing?

installed a T4....so, I have some parts laying in a heap. I need to put to together a sale ad for this site.

 

yes, i have a Rotomaster Super GTP turbo. And yes it has a ported housing.

 

You can source the flexible intake tube for the 38R from RiffRaff.

https://www.riffraffdiesel.com/garrett-powermax-gtp38r-replacement-intake-tube/

 

After further investigation, their intake tube IS 4" at the end. Just looks smaller because of it starting out larger than 4". I should have clued into where it actually mounted up to. My bad.
time to order one.