Air and Fuel› Intake Manifolds and Components

Nick Williams Performance

103mm Drive-by-Wire Throttle Body

$695.00

SKU: WP103TB-LS

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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 Performance WP103TB-LS is a 103mm drive-by-wire throttle body designed for LS applications. It is CNC precision-machined from billet aluminum to support increased airflow demands in performance engines. This throttle body utilizes a 6-pin late model connector and comes fully assembled with bolts.
Show original supplier description
The Nick Williams Performance WP103TB-LS is a 103mm drive-by-wire CNC billet throttle body engineered to meet the airflow requirements of high-performance LS engines. This unit is a direct replacement for previous 102mm boosted and non-boosted models and is a significant upgrade for engines demanding more air. Constructed from precision-machined billet aluminum, this throttle body features a 103mm throttle blade diameter, necessitating an aftermarket intake manifold for proper fitment. It is designed with a 6-pin late model connector, compatible with late-model wiring harnesses. For LS1-based applications, a specific harness is required. Truck applications also require custom fitting and a harness. Installation and optimal performance require tuning. The product is explicitly stated as NOT legal for sale, installation, or use on a licensed vehicle in California and does not meet CARB compliance; it is intended solely for racing vehicles not used on public highways.

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 Performance
Part NumberWP103TB-LS
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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