Subaru OEM STI Transmissions, USDM 6-Speed

Brand New OEM Subaru STI 6-Speed Transmissions. 

Please refer below, or in the product manual (Rallispec Transmission Chart) for transmission details.

[ There is a mandatory flat rate freight charge ]

As low as $6,417.32 Regular Price $7,125.73
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Subaru OEM STI Transmissions, 6-Speed

These are brand new 6 speed transmissions from Subaru!

Please keep in mind that if you are doing a swap into your WRX, you WILL need to make sure you have the correct rear differential to match up with the reduction gear of the transmission. The rear differentials are not included with these sales.

USDM Impreza WRX STi MY04 (2003 prod. Year)

Trans. Code: TY856WH3MA 

1st: 3.636 

2nd: 2.375 

3rd: 1.761 

4th: 1.346 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.000 

Final Drive: 3.900

Center Diff. Type: DCCD (35:65)

Front Diff. Type: A. P. Suretrac

Rear Diff. Type: R180 - Plated

USDM Impreza WRX STi MY04 (2004 prod. Year)

Trans. Code: TY856WH4MA 

1st: 3.636 

2nd: 2.375 

3rd: 1.761 

4th: 1.346 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.000 

Final Drive: 3.900

Center Diff. Type: DCCD (35:65)

Front Diff. Type: A. P. Suretrac

Rear Diff. Type: R180 - Plated

USDM Impreza WRX STi MY05

Trans. Code: TY856WW6MA 

1st: 3.636 

2nd: 2.375 

3rd: 1.761 

4th: 1.346 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.000 

Final Drive: 3.900 

Center Diff. Type: DCCD (35:65) 

Front Diff. Type: Helical LSD 

Rear Diff. Type: R180 - Plated

USDM Impreza WRX STI MY06 This is the first year that came with the 1.1:1 reduction gear.

Trans. Code: TY856WW7MA 

1st: 3.636 

2nd: 2.375 

3rd: 1.761 

4th: 1.346 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.100 

Final Drive: 3.900 

Center Diff. Type: DCCD (41:59) 

Front Diff. Type: Helical LSD 

Rear Diff. Type: R180 - Plated

USDM Impreza WRX STI MY07 (early 07 producton)

Trans. Code: TY856WW8MA 

1st: 3.636 

2nd: 2.235 

3rd: 1.521 

4th: 1.137 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.100 

Final Drive: 3.900 

Center Diff. Type: DCCD (41:59) 

Front Diff. Type: Helical LSD 

Rear Diff. Type: R180 - Torsen

USDM Impreza WRX STI MY07 (late 07 production)

Trans. Code: TY856WW8MD 

1st: 3.636 

2nd: 2.235 

3rd: 1.521 

4th: 1.137 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.100 

Final Drive: 3.900 

Center Diff. Type: DCCD (41:59) 

Front Diff. Type: Helical LSD 

Rear Diff. Type: R180 - Torsen

USDM Impreza WRX STI MY08-14

Trans. Code: TY856UW1MA

1st: 3.636 

2nd: 2.235 

3rd: 1.521 

4th: 1.137 

5th: 0.971 

6th: 0.756 

REV: 3.545 

Transfer reduction: 1.100 

Final Drive: 3.900 

Center Diff. Type: DCCD (41:59) 

Front Diff. Type: Helical LSD 

Rear Diff. Type: R180 - Torsen

<p>&nbsp;</p>
<p><b>What is the best year STI 6-speed to use for a swap?</b></p>
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<p><b>What it takes to swap an STI 6-Speed into a GD WRX (2002 - 2007)</b></p>
<p><iframe width="560" height="315" src="https://www.youtube.com/embed/nUJ7E2Bh5g0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe></p>

<p>&nbsp;</p>
<p><b>What's needed for a 6-Speed swap in a GR WRX (2008 - 2014)</b></p>
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More Information
SKU Subaru OEM STI Transmissions, 6-Speed
Brand Subaru OEM
Product Type Drivetrain
Drivetrain Gear Sets, Transmissions, Differentials