Big Mouth LT Throttle Bodies™ from FAST™ for Chrysler Hemi applications feature a black-wrinkle powder coating. The enlarged bore is a substantial upgrade over stock and allows increased airflow to support higher horsepower. A progressive throttle pulley enhances drivability, especially at low throttle, while a double return spring provides a solid feel and increased safety. A drive-by-cable throttle body (FAST™ Big Mouth/Big Mouth LT) is necessary for XFI™ and EZ-EFI® (or other aftermarket EFI customers) running an engine that was originally throttle-by-wire. Requires GM-style IAC and TPS and is also available with them - Part #54088.
Fits All 2003-up 5.7L HEMI applications and ALL 2005-2010 6.1L HEMI applications only + ALL 2011-up 6.4L Applications
Throttle Body Style: Multi-port injection, MPI
Venturi Quantity: 1
Venturi Diameter (mm): 87.00mm
TPS Sensor Included: No
IAC Motor Included: No
Gaskets Included: No
Hardware Included: No
Injectors Included: No
Throttle Body Material: Cast aluminum
Throttle Body Finish: Black powdercoated
Quantity: Sold individually.
Notes: Drive-by-cable style linkage
Purpose:
The FAST 54088 is designed to replace the factory throttle body on Chrysler HEMI engines, improving airflow and performance.
Size:
It's an 87mm throttle body, which is larger than the stock size, allowing for more airflow.
Drive-by-cable:
It uses a drive-by-cable linkage system, which may be necessary for certain aftermarket EFI systems like FAST XFI or EZ-EFI when converting from a throttle-by-wire system.
Features:
The black-wrinkle powder coating adds a stylish look and durability. It also includes features like a progressive throttle pulley for improved drivability and a double return spring for safety.
Installation:
While designed as a performance upgrade, it may require professional modifications for optimal fit and function.
Compatibility:
It's compatible with OEM Chrysler HEMI intake manifolds.
Additional Notes:
It requires GM-style IAC and TPS sensors, which may need to be purchased separately. It's not legal for vehicles in California or other states following CARB standards.
Not available for shipment outside the continental USA. We cannot ship this to Hawaii, Alaska, or other countries.
Dropships direct from manufacturer.
This product was added to our catalog on Wednesday 12 September, 2018.
