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Stock Mag Non-intercooled has a 3.5 pulley
Stock Mag intercooled has a 3.4 pulley

Each smaller .1 in size equal about +1 psi or ~ 15 RWHP ** not my numbers but from Magnuson. So using Mags #s going from Stock Non-intercooled (3.5) that has about 5.5 # of boost to a 3.2 you should pick up 3 # of boost. ** I experinced about 2.2# going from 3.5 to 3.2. **

The 3.2 is NEW never on car.

Pulley for Mag $55 shipped (USA only) ..


 
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