Soler Engineering Premium Modified Throttle Body 103mm (20182023 Roush Mustang / Mach 1 / Bullitt 5.0L) SE-KR3Z-103
High-Flow 103mm Throttle Body for Roush, Bullitt & Mach 1
The Soler Engineering SE-KR3Z-103 is a premium modified, ported, and calibrated 103mm throttle body engineered for high-output 5.0L Coyote applications. Designed for builds running GT350-style or GM LT-series throttle body bolt patterns, this unit is ideal for aftermarket manifolds, superchargers, and max-effort NA combinations seeking maximum airflow without sacrificing drivability.
Each unit is sensor-matched and calibration-verified, preventing the tuning glitches and idle issues commonly seen with oversized throttle bodies. Expect smooth idle, predictable response, and immediate airflow even on aggressive setups.
Performance Highlights
- Massive 103mm bore for high-flow intake and forced-induction applications
- Velocity-stack taper and upstream porting improve inlet speed and reduce turbulence
- Diamond-polished 16 Ra internal finish for reduced restriction
- Dimpled shaft trailing edge for enhanced airflow stability at WOT
- Body and sensors calibrated as a matched set
- Rated at 1600 ± 50 SCFM @ 20 H?O
Quick Specs
- Bore Size: 103mm
- Flow Rating: 1600 ± 50 SCFM @ 20 H?O
- Compatibility: GT350 & GM LT1/LT2/LT4 TB hole patterns
- Included: Throttle body, gasket, mounting screws
- Construction: CNC-ported, polished, and calibrated
- Warranty: 30-day refund + 11-month repair/replacement
Why Choose This 103mm Soler Engineering Throttle Body?
- Engineered for high-horsepower Roush, Mach 1, and Bullitt builds
- OEM-quality drivability with massive airflow overhead
- Smoother throttle mapping and sharper shift response
- No idle surge, hesitation, or stumble
- Ideal for supercharged or ported manifold combinations
FAQs
Do I need a specific intake manifold for this throttle body?
Yes this throttle body is designed for GT350 bolt patterns or GM LT-series patterns. Most applications require aftermarket manifolds or adapter plates.
Will this require a tune?
Tuning is highly recommended to fully utilize the airflow increase, especially on forced-induction or ported-manifold setups.
Fitment
Roush Mustang 5.0L
- 2018 Roush Mustang 5.0L
- 2019 Roush Mustang 5.0L
- 2020 Roush Mustang 5.0L
- 2021 Roush Mustang 5.0L
- 2022 Roush Mustang 5.0L
- 2023 Roush Mustang 5.0L
Mustang Bullitt 5.0L
- 2018 Mustang Bullitt 5.0L
- 2019 Mustang Bullitt 5.0L
- 2020 Mustang Bullitt 5.0L
- 2021 Mustang Bullitt 5.0L
- 2022 Mustang Bullitt 5.0L
- 2023 Mustang Bullitt 5.0L
Mustang Mach 1 5.0L
- 2018 Mustang Mach 1 5.0L
- 2019 Mustang Mach 1 5.0L
- 2020 Mustang Mach 1 5.0L
- 2021 Mustang Mach 1 5.0L
- 2022 Mustang Mach 1 5.0L
- 2023 Mustang Mach 1 5.0L
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Soler Engineering dealer with proven experience supporting high-performance Coyote
builds. We provide expert tech help, fast shipping, and the best pricing online.
Call 1-855-827-7223 or email
sales@beefcakeracing.com for recommendations tailored to your setup.
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