SKU: JET62143
UPC: 064330040327
MPN: 62143
The JET Performance 62143 Powr-Flo spacer is a bolt-on airflow upgrade for GM throttle body injection engines, aimed at drivers who want sharper throttle response and mid-range punch without swapping major hardware. It installs between the throttle body and the intake manifold, using a specially bored profile to speed up incoming air. The result is a denser air charge reaching the combustion chamber, which JET rates for gains through the mid-range and top end. It sits in our air and fuel lineup as one of the simpler power-adder parts a GM owner can add in an afternoon.
The spacer is precision machined from billet aluminum in JET's in-house CNC shop, so the bore geometry stays consistent unit to unit. That bore is the working part of the design: by narrowing and shaping the passage, it raises air velocity into the intake manifold rather than simply opening up volume. Higher velocity pulls more air into the combustion chamber for a denser charge, which JET credits with improved throttle response and better fuel efficiency alongside the power gains. Installation is a straight bolt-on with no other vehicle modifications required, and it plays well with other upgrades such as computer tuning, cold air intake systems, and free-flow exhaust. If emissions compliance matters in your state, verify the part carries a C.A.R.B. E.O. number for your specific vehicle.
This spacer makes the most sense for GM truck and car owners running a throttle body injection setup who want a stackable modification that works with parts they already have or plan to add. Because it bolts in without cutting or permanent changes, it's an easy first step before moving on to intake or exhaust work. Pair it with a fresh cold air intake or a matched throttle body to build out the airflow path. Browse the rest of our air and fuel parts to round out the combination that fits your engine and goals.
It mounts between the throttle body and intake manifold, with a specially shaped bore that increases air velocity into the manifold. That speeds up airflow into the combustion chamber for a denser air charge, which JET rates for improved throttle response and power gains in the mid-range and top end, plus better fuel efficiency.
No. The 62143 is a straight bolt-on that fits between the throttle body and intake manifold with no other vehicle modifications required. Most GM owners can complete the job with basic hand tools in an afternoon.
Yes. JET designed the Powr-Flo spacer to work alongside other aftermarket parts, including computer upgrades, cold air intake systems, and free-flow exhaust. It's built as a stackable airflow mod rather than a standalone fix.
That depends on your vehicle and state. If emissions compliance applies to you, verify that this part carries a C.A.R.B. E.O. number for your specific application before installing. C.A.R.B. refers to the California Air Resources Board.
It's precision machined from billet aluminum in JET Performance's in-house CNC shop. Machining the part in-house keeps the bore geometry consistent from unit to unit, which is where the air-velocity gains come from.
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