Quote:
Originally Posted by azncarjunkie
You mentioned two very key words. velocity and savaging. Managing exhaust is just as important as the intake.
If you're running enough boost, I could imagine where open headers would be more beneficial. I'm curious why you're saying that with a roots blower 'you can just run open headers'. That sounds like old-school muscle car mentality where you don't worry about exhaust tuning, but overcome it with more boost. I thought roots was more of a lobe design compared to our screw design. Don't know some of the particulars beyond that and would be quite curious why. 
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Out of curiosity how much power does your car make. I would like you to post back to back dyno graphs from the same car, on the same day, same dyno that supports your claims. Many of us have built MANY turbo and supercharged platforms *in the real world* and we know what gains to expect from given mods and tuning. On no other supercharged or turbo setup does free flowing exhaust lose power. There is no reason to assume it will on a K55 engine either.