I have a few Q's about the single setups if you don't mind me asking.
I see that on Bullseye's website, the s300 series all use t4 flanges, and the s400's use t6. But both the s300 and s400 turbo's for sale on your site are listed as t4. And also, the 6.4 "t4 Heavy Duty Up-pipes" for the single kit say they come t4, and setup for s300's, but then there is an option to upgrade to fit an s400. What is different with the upgrade added? T6 flange?
I'll be looking to piece together a kit for my truck in the future, probably going to use a Borg s471(Or a Bullseye s372/s472), and I'm just trying to clear some things up. I'm getting ready to order a turbo, and don't know whether I'd want to order it with a t4 or t6 housing, if I was to use your up-pipe kit.
Thanks