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  • 3" ProFlow Boost Tube & boot

This 3" boost tube is for use ONLY with our LLY- LBZ - LMM  shorty bridge.

It runs over the alternator and in front of the motor making it ideal for use with twins and big singles.

It gives a significant flow increase and comes powder coated black & includes the upper hose and clamps. The LLY install requires some tweaking on the coolant and trans lines in front of the motor. It also requires the 90b-300 x 10 lower elbow and 2 clamps and can be added below.


NEW Product!! We now have these for the LBZ - LMM that go behind and beside the alternator in a more stock location. Make that selection below.

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3" ProFlow Boost Tube & boot

  • $149.00

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Due to California State law Profab Performance Products are not for sale or use in California. 

Due to software limitations our online ordering system is unable to exclude orders originating in the state of California. Our system will currently accept orders and take payments from California addresses but those orders will not be shipped.  All orders are fulfilled manually and our staff has been instructed to cancel and refund any order with a California billing or shipping address.  There are no exceptions to this rule so please don't ask or place orders.