Boost drop form mid lenght headers with twin screw

[03 svt]

I posted this in the exhaust section and had no luck. So my question is do the midlength bassani headers drop boost pressure? I'm trying to figure out which pullies to buy for tuning. I will be installing a KB 2.4. I ordered it with a 3 1/4 pully. Thanks for the help

 

[cobracide]

Zero to 2 pounds can show up as a drop.

 

[03 svt]

Herman is going to tune it so he said to stay around 18-19# plus I was going to do a race tune. So I guess take a 3.00 and a 2.95? I can't really base the boost loss off of my eaton because the boost gauge os everywhere with that thing.