Radium Block-Off Plates and Bypasses | LT4 LT5 / 2JZ-GTE / 13B-REW / Corvette (20-0988 / 20-0390 / 20-0449 / 20-0574)

Four parts that each remove something the factory put in the way.

A group of Radium Engineering block-off plates and bypasses, each deleting or bypassing a factory component that a modified engine no longer needs or that gets in the way of an upgrade.

Choose Your Part

• PCV valve bypass, GM LT4 / LT5 (20-0988)
• EGR block-off, 2JZ-GTE (20-0390)
• ACV block-off, Mazda 13B-REW (20-0449)
• FPR bypass, mid 2003-2013 Corvette (20-0574)

What You'll Feel

• A tidy engine bay with unused factory plumbing properly capped
• No vacuum leaks from a blanked port done improperly
• Anodized billet in place of a shop-made plate

Features

• Billet aluminum construction, anodized
• Application specific fitment
• Sealing hardware included

The Details

The 20-0988 PCV valve bypass suits supercharged GM LT4 and LT5 engines, where bypassing the factory PCV valve is part of a catch can or crankcase ventilation upgrade.

The 20-0390 EGR block-off caps the 2JZ-GTE EGR port, common on built or converted engines where the EGR system has been removed. The 20-0449 ACV block-off does the same for the 13B-REW air control valve.

The 20-0574 FPR bypass is a fuel system part rather than an air one, bypassing the factory regulator on mid 2003-2013 Corvettes as part of converting to an aftermarket regulator.

Kit Includes

• Block-off or bypass plate with sealing and mounting hardware

Applications

• 20-0988: GM LT4 and LT5
• 20-0390: Toyota 2JZ-GTE
• 20-0449: Mazda 13B-REW
• 20-0574: Mid 2003-2013 Chevrolet Corvette

Important Notes

• Deleting emissions equipment may affect road legality in your jurisdiction