S90 Billet Aluminum Throttle Body for 1G/2G DSM & Evo 1/2/3

S90 Performance



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The S90 direct bolt-on throttle body for Evo 1/2/3 and 1G/2G DSM is precision CNC machined from AL6061 T6 billet aluminum for increased durability. Available with a 70mm or 74mm bore size and includes a new gasket and mounting hardware.

Vehicle Fitment:
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
CD9A Evolution I
CE9A Evolution II III

More Info:
The throttle shaft and blade assembly are CNC machined from AL7075-T6 aluminum separately to increase horsepower and torque by optimizing airflow to the engine, with the addition of two high quality bearings for smoother and precision control.

• Throttle Body
• Gasket
• Install Hardware

Install Notes:
• The factory FIAV (Fast Idle Air Valve) parts can be installed to the bottom of the throttle body, but if you want to block off your FIAV, the gasket and block off plate are available here: STM FIAV Block Off Plate and Gasket
• We recommend a 3" coupler for the 70/74mm throttle bodies. The 3" coupler is just a bit loose on the 70mm, but a 2.75" is way too small. The 3" coupler is VERY tight on the 74mm, but it does fit. A 3.25" coupler on the 74mm is way too big. Shop for Couplers and Clamps

Throttle Body Bore Size: Part Number:
70mm S90-MIT-170
74mm S90-MIT-174
See more S90 Performance Products
See more S90 Performance Products
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Customer Reviews

Based on 1 review
Tyler Vanorsdale (Fond du Lac, WI, US)
Good quality

Haven’t been able to put on my car because you need an aftermarket intake manifold plus my package had scratches on inside of the throttle body

Cancer and Reproductive Harm