Aluminum Intake Elbow with Nitrous Port for Pontiac Firebird (1993-1997) 5.7L

High-Flow Cast Aluminum Intake Elbow with Nitrous Port for 1993-1997 Pontiac Firebird (F-Body)

What it Does: The Cast Aluminum Intake Elbow replaces the restrictive factory molded rubber elbow on the 1993-1997 Pontiac Firebird to smooth intake airflow into the throttle body and provide a dedicated direct-injection nitrous port.

The Stock Pontiac Firebird Intake Restriction

The OEM intake elbow on the LT1-powered F-Body features an abrupt turn with corrugated internal ribbing directly upstream of the throttle body. These internal ribs cause severe boundary layer turbulence and pressure drops before the throttle blades. Furthermore, decades of underhood heat cycling cause the factory rubber to soften, dry-rot, and deform under vacuum, creating unmetered post-MAF air leaks that compromise fuel trims.

The Engineering Solution

Engineered from durable cast aluminum, this intake elbow eliminates vacuum collapse and heat degradation while maintaining structural rigidity. The interior runner features an expanded radius and uniform cross-section to maintain intake air velocity and lower intake tract turbulence. A pre-machined, cast-in auxiliary boss points directly at the throttle blade divider for optimal nitrous atomization; when running naturally aspirated, the included threaded plug secures the port. Reinforced silicone couplers and heavy-duty worm-drive clamps ensure positive mechanical sealing against engine vibration.

What's Included

• 1 Cast Aluminum Intake Elbow
• 2 Silicone-Style Couplers
• 4 Worm Gear Clamps
• 1 Nitrous Port Plug

Technical Specifications

Compatibility

• 1993-1997 Pontiac Firebird Formula 5.7L LT1 V8
• 1993-1997 Pontiac Firebird Trans Am 5.7L LT1 V8

Frequently Asked Questions & Fitment Warnings

Does this fit the F-Body Firebird?

Yes, this is a direct fit for the 1993-1997 Pontiac Firebird equipped with the LT1 engine. Does not fit 1998-2002 LS1 V8 engines or any V6 engine models.

Do I need an ECU calibration after installing this intake elbow?

No, an ECU tune is not required for the elbow installation alone when operating naturally aspirated with the supplied port plug.

The Pontiac Muscle Standard

Built for the high-demand air requirements of the small-block LT1, this solid aluminum casting delivers reliable airflow velocity and structural durability under aggressive throttle application.