GPI – LS3 Intake Manifold Mod (Radius Rod Mod / Porting)

Rated 5.00 out of 5 based on 5 customer ratings
(5 customer reviews)

$275.00$675.00

Gwatney Performance
  • We install radius bars to the LS3 manifold to help the air transition from the plenum to the runner.
  • Dyno tested to gain about 5 rwhp on bolt on cars and around 12 rwhp on cammed setups.
  • Porting the Manifold includes stand removal, and epoxying the manifold floor for maximum airflow (Optional).

Limited quantity of cores kept in house.

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Add Intake Porting: * 

Want to take your LS3 Intake Manifold to the limit? Porting the Manifold also includes stand removal, and epoxying the manifold floor for maximum airflow!

*We don’t recommend this for forced induction setups, as removing the stands decreases the structural rigidity of the manifold.

(Intake Porting is a very popular and time consuming process. Please allow extra time for shipment if selecting this option. They are fabricated on a per order basis.)

Add Intake Manifold Heat Shield * 

It works by shielding the intake manifold and reducing the heat radiating up from the top motor. This lowers intake manifold temperatures creating a more dense fuel and air mixture, creating more power. Think of it as an intercooler for your intake, same physics and chemistry just a different way to get there.

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