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Products to give your Turbo 4.9 more performance

Manual Boost Controller

2.5" Turbo Down Pipe Kit

2.5" Turbo Down Pipe Kit

Our manual boost controller delays the pneumatic actuation of the waste gate until maximum boost pressure is reached.  This allows the turbo to “spool up” at a quicker rate.  

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2.5" Turbo Down Pipe Kit

2.5" Turbo Down Pipe Kit

2.5" Turbo Down Pipe Kit

Improve the performance and breathing of your Turbo 4.9 Trans Am or Formula with our 2.5" mandrel bent, turbo down pipe. 

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Water-Alcohol Injection

2.5" Turbo Down Pipe Kit

Water-Alcohol Injection

Water injection has been around since WWII.  It is a great way to suppress detonation in the internal combustion engine.  

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Turbo Air Induction

Performance Head Gasket

Water-Alcohol Injection

The key to improving the performance of the Turbo 4.9 is to have as cool of air coming in as possible.  Since the turbo cars came equipped with a hood scoop, why not make it functional? 

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2.5" Exhaust "Y" Pipe

Performance Head Gasket

Performance Head Gasket

Continue to improve the performance of your Turbo 4.9's exhaust with our after cat, 2.5", mandrel bent "Y" pipe.

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Performance Head Gasket

Performance Head Gasket

Performance Head Gasket

TTA Performance offers these modified Fel Pro head gaskets. 

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Nitrous Oxide System

Rebuilt Upgraded Turbo

Rebuilt Upgraded Turbo

This nitrous system is used as an anti-turbo lag device. 

Contact Us

Rebuilt Upgraded Turbo

Rebuilt Upgraded Turbo

Rebuilt Upgraded Turbo

TTA Performance has teamed up with G-Pop Shop to offer rebuilt, upgraded turbos for the 1980-81 Turbo 4.9s.  Our goal is to have a rebuilt turbo on the shelf and ready to ship to you. 

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4-Speed Flywheel

Rebuilt Upgraded Turbo

Turbo Shorty Header System

If you are looking to convert your Turbo 4.9 or non-turbo 301 to a manual transmission, we now offer a billet steel flywheel.  You no longer have to source a used 1979 301 4-speed flywheel for your conversion.

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Turbo Shorty Header System

Turbo Shorty Header System

Turbo Shorty Header System

Shorty header system for the Turbo 4.9 is now available.  This is the system that was tested on the dyno and provided a 25 lb/ft increase in torque over the stock manifold system. 

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180° Thermostat

Turbo Shorty Header System

EGR Block Off Plate

The correct thermostat for your 4.9 Turbo.

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EGR Block Off Plate

Turbo Shorty Header System

EGR Block Off Plate

EGR block off plate machined from 3/8" thick aluminum. 

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Aluminum Water Pump

Boost Gauge Conversion

Boost Gauge Conversion

New aluminum water pump with correct cast iron impeller.

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Boost Gauge Conversion

Boost Gauge Conversion

Boost Gauge Conversion

Send us your tachometer to have the clock converted to a vacuum/boost gauge. 

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1.65 Ratio Rocker Arms

Boost Gauge Conversion

1.65 Ratio Rocker Arms

Comp Cams Roller Rocker arm conversion kit (1.65 or 1.5 ratio) .

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Cam and Lifter Sets

Cylinder Head Conversion Head Gaskets

1.65 Ratio Rocker Arms

 Custom ground cam and lifter set 

*Coming soon

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Fuel Injection Conversion

Cylinder Head Conversion Head Gaskets

Cylinder Head Conversion Head Gaskets

FiTech or Holley EFI conversion kits.

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Cylinder Head Conversion Head Gaskets

Cylinder Head Conversion Head Gaskets

Cylinder Head Conversion Head Gaskets

Custom designed copper head gasket to install conventional Pontiac cylinder heads on a 301 block. 

Contact Us

2.5" Tail Pipe Exhaust Kit

2.5" mandrel bent tail pipes with 2.5" polished stainless steel splitter tips. Includes mounting brackets.

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