A popular upgrade for the J series is the 3.7l intake manifold from the TL SHAWD, the Prank Parts intake butterfly kit allows you to run the intake cover without needing the butterfly actuator attached. On J swapped cars the stock butterfly valve seldom works, adds weight, and hurts top end power when the butterfly is non-functional.
 

• Includes 2 low profile stainless bolts and a high durability o-ring