I agree 100% with Cody.
I went with the x-wheel because its more cost effective. It also does whistle a lot louder and flows less air. I can hit about 20-22psi when I could hit 29 with the factory wheel. I hear going over 24 is bad for the turbo but I'm not sure what is safe reccomendation for the x-wheel sense it does flow less air. I didn't really see a power loss. Instead I found smoother power/acceleration and no more surge.
I've also thought I might be seeing less boost because I attempted, and suceeded, in taking the housing off without disconnecting the E clip on the waste gate rod. It took a good bit of tugging and pulling but I slipped the waste gate and bolts off of the housing by taking the housing off first. Probably not the safest way to do things but after laying on top of my engine for 4hrs I was wanting to get the job done. After I got the housing out, I slotted the holes used to secure the waste gate so it would slide right off if there is ever a next time.
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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