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wrap them on their website. "I personally would not wrap them......
The turbo works on the difference in temperature and pressure of the turbine inlet and outlet.
The hotter the exhaust gas on the inlet of the turbine and the cooler the exhaust on the outlet of the turbine the greater the efficiency of the turbo, the greater the spool up and ultimately the greater the power.
This is why the expansion down pipes make so much more power is because it causes a much greater temp and pressure difference.
The low end power increase even on stock turbos is about 50 ft lbs torque on the expansion pipes over regular downpipes because it makes a cool, low pressure area on the back side of the turbine wheel.
So coating, wrapping manifolds and turbine housings will increase the heat before the turbo wheel and increase response and power......You want the downpipe to have the least amount of backpressure as possible as well as be as cool as possible.
Wrapping the downpipe would increase the temp of the down pipe causing less of a temp/pressure difference and it would hurt the spool up and efficiency."
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