Air and Fuel› Intake Manifolds and Components

Nick Williams

LSX 103mm Drive-by-Wire Throttle Body

$689.95

SKU: NWM-SD103

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Nick Williams LSX 103mm throttle body is a high-flow intake component designed for LSX builds. It features a 103mm diameter opening with a drive-by-wire motor and throttle blade. This throttle body is engineered with a stronger electric motor to prevent the throttle blade from closing under high boost levels. It is configured with a late model GM 6-pin connector and is available in natural billet or black anodized finishes.
Show original supplier description
The Nick Williams LSX 103mm throttle body is engineered to address the airflow limitations of stock throttle bodies, especially in boosted applications. This unit provides a 103mm diameter throttle opening, complete with a drive-by-wire motor and throttle blade, to significantly increase airflow potential for performance builds. Nick Williams Performance has redesigned this LSX throttle body with an enhanced electric motor. This upgrade ensures the throttle blade remains securely in place even under high boost conditions, preventing unwanted closure. The throttle body is constructed from durable aluminum and features a late model GM 6-pin connector for straightforward integration. This LSX version is distinct from the LTX version and is intended for specific LSX applications. It replaces all previous iterations of the older Nick Williams 102mm throttle body series, including boosted, non-boosted, and NA models. Available finishes include natural billet and black anodized, allowing for aesthetic customization.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandNick Williams
Part NumberNWM-SD103
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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