103 MM (HIGH PERF.) LTX, LSX, LS2 (C6 | C7 | C8 +MORE)








103 MM (HIGH PERF.) LTX, LSX, LS2 (C6 | C7 | C8 +MORE)
103MM Premium Modified, Ported, and Calibrated Throttle Body
PERFORMANCE: Wide-open throttle flow: 1600 +/- 50 SCFM @ 20” H2O at WOT.
WARRANTY: 30-day money-back, 12-month repair or replacement.
Please scroll down for FITMENT, FEATURES, BENEFITS, and ADDITIONAL INFORMATION.
VARIANTS (Use the fitment table below to aid in selection)
NEW: A brand new reworked part (0 miles / BNIB).
REFURBISHED: A refurbished and reworked part is shipped right after your order.
FITMENT:
Variant | Make | Model | Submodel | Year | Engine Displ. | Generation | Engine Code | Fitment Notes | What's in the Box? | Electronically Comp. w/ OEM |
LTX (SE8223-103) |
Cadillac | CTS | V | 2016-2019 | 6.2L V8 SC | 3rd | LT4 | * Must have aftermarket inlet duct/CAI or
expandable coupler. * Stock Manifold/Supercharger needs Adapter Kit. * Aftermarket Manifolds or Superchargers ported to 103mm do not need Adapter Kit. |
In any Case: SE8223-103 (Throttle Body) SE8223-103GSKT (Gasket) BSH6X45PSS (4X) (T-Body Screws) |
12620263 12678223 12678312 12713774 12729495 12733469 |
CT5 | V Blackwing | 2022-2024 | 1st | |||||||
Escalade/ESV | Base/Lux./Prem./ Plat./ Sport | 2015-2020 | 6.2L V8 | 4th | L86 | |||||
Chevrolet | Camaro | SS/LT1 | 2016-2024 | 6.2L V8 | 6th | LT1 | ||||
ZL1 | 2017-2024 | 6.2L V8 SC | LT4 | |||||||
Corvette | Stingray/Z51/GS | 2014-2019 | 6.2L V8 | 7th | LT1 | |||||
Z06 | 2015-2019 | 6.2L V8 SC | LT4 | |||||||
Stingray/Z51/E-Ray | 2020-Present | 6.2L V8 | 8th | LT2 | ||||||
ZR1 | 2019 | 6.2L V8 | 7th | LT5 | ||||||
Silverado 1500 | High County Trail Boss LT Trail Boss LTZ/RST |
2014-2021 | 6.2L V8 | 3rd | L86 | |||||
Silverado 2500 HD / 3500 HD | Custom High County LTZ/WT |
2016-2021 | 6.0L V8 6.6L V8 |
LY6 LML/L5P |
||||||
Suburban 3500 HD | LS/LT High Country |
2016-2021 | 6.0L V8 6.2L V8 |
11th | L86 | |||||
Tahoe | High Country Premier |
2018-2021 | 6.2L V8 | 4th | ||||||
GMC | Sierra 1500 | AT4/Denali/SLT | 2014-2021 | 6.2L V8 | 3rd | L86 | ||||
Sierra 2500 HD / 3500 HD |
Base/AT4 Denali/SLE/SLT |
2016-2021 | 6.0L V8 6.6L V8 |
LY6 LML/L5P |
||||||
LSX (SE5109-103) |
Cadillac | CTS | V | 2009-2015 | 6.2L V8 SC | 2nd | LSA | * Must have aftermarket inlet duct/CAI or
expandable coupler. * Stock Manifold/Supercharger needs Adapter Kit. * Aftermarket Manifolds or Superchargers ported to at least 102mm do not need Adapter Kit. * Mounts with connector towards the driver side. * Includes Harness 6-pin in-line to 3-pin by 2 lines. * Gold blade calibration |
SE5109-103 (Throttle Body) SE8223-103GSKT (Gasket) SE5109-HRN (Harness, 6-L to 3x2) BSH6X45PSS (4X) (T-Body Screws) |
12605109 19420707 |
Chevrolet | Camaro | SS | 2010-2015 | 6.2L V8 | 5th | LS3 | ||||
Z/28 | 2014-2015 | 7.0L V8 | LS7 | |||||||
ZL1 | 2012-2015 | 6.2L V8 SC | LSA | |||||||
Caprice | PPV | 2011-2017 | 6.0L V8 | 6th | L77 | |||||
Corvette | Base, GS | 2009-2013 | 6.2L V8 | 6th | LS3 | |||||
Z06 | 7.0L V8 | LS7 | ||||||||
427 | 7.0L V8 | |||||||||
ZR1 | 6.2L V8 SC | LS9 | ||||||||
SS | Base | 2014-2017 | 6.2L V8 | - | LS3 | |||||
Pontiac | G8 | GT/GXP | 2008-2009 | 6.2L V8 | - | LS3 | ||||
LS2 (SE0790-103) |
Cadillac | CTS | V | 2006-2007 | 6.0L V8 | 1st | LS2 | *Same as LSX, except: Silver blade calibration |
SE0790-103 (Throttle Body) Other components same as LSX |
12570790 |
Chevrolet | Corvette | Base | 2005-2008 | 6th | LS2 | |||||
Pontiac | GTO | - | 2005-2006 | - | LS2 |
. PERFORMANCE:
• Wide-open throttle flow: 1600 +/- 50 SCFM @ 20” H2O at WOT.
• Designed for drivability; no tune is required (highly recommended for optimal performance).
• Max Area ETC scalar : 5396mm²
• Max Geometric/Flow Area: 7466mm² (do not use as area scalar in tune)
• Fully tested before shipping for sensor and motor operation, response time, and airflow.
FEATURES:
• Body and Sensors calibrated as a match set, zero intrinsic calibration issues
• Porting Taper and Upstream Bore with Velocity Stack (Lip & Bore Reduction)
• 16 Ra Microinch, Diamond Polished Surface Finish (Lower Skin Friction)
• Dimpled Pattern on shaft trailing edge.
• Dual-purpose hole pattern, the innermost part provides a direct fit to the MSD and all LT1/2/4 manifolds/superchargers, or aftermarket superchargers.
The outermost provides a direct fit to the LT5 (ZR1) supercharger.
BENEFITS:
• Essential component in high-performance engine modification, with exceptional high flow capacity
• Lower weight to power ratio at part throttle, for a more nimble/spirited driving experience
• Linearization and smoothing of the curve for a more predictable response and crisper shifts
• Immediate response right off idling while keeping idling function undisturbed (No Hesitation/Stumble)
• Does not require tuning to run, but tuning is highly recommended for optimal performance
• No drivability, idle, tuning, or similar issues relating to similar-sized throttle bodies.
• More air/power at every single throttle position after idle.
• Easy Installation
Inlet Coupler & Transitional Spacer ARE AVAILABLE FOR PURCHASE SEPARATELY.