Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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$281.35 pair
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Features, Description, Q&A, Specs & Installation
Fitment:
Holley 241-296
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
What's in the Box
Jan 2, 2025
Review shared from Holley Drop-In Fuel Module Assembly; 255 LPH (01-04 Mustang GT, Cobra, Mach 1)
Holley for the win
It come to fuel system weather it is carburetor or fuel Injection holley is the best.
Aug 31, 2024
Review shared from Holley 8mm Flexible In-Tank Fuel Line; 172mm Long
Perfect for aftermarket fuel system
Bought this for a Hellcat fuel pump swap, needed a few pieces of fuel line and this worked wonders. No internal leaks or anything, and it doesn’t lose pressure. I rate this 5/5 stars for its function and the low cost
Jul 21, 2024
Review shared from Holley Drop-In Fuel Module Assembly; 255 LPH (01-04 Mustang GT, Cobra, Mach 1)
Holly Pump
The Holley Drop-In Fuel Module Assembly for the 2001-2004 Mustang GT is a solid choice for enthusiasts looking to upgrade their fuel delivery system. With a flow rate of 255 LPH, it offers significant improvement over stock, ensuring ample fuel supply for modified engines without overwhelming the stock fuel system. Installation is straightforward, thanks to its drop-in design, which eliminates the need for extensive modifications. Performance-wise, it delivers consistent fuel flow, maintaining optimal pressure even under demanding conditions. The assembly's durability and quality construction inspire confidence, backed by Holley's reputation in the automotive aftermarket. Users report noticeable gains in throttle response and overall engine performance, making it a worthwhile investment for those seeking reliability and increased power output. Overall, the Holley Drop-In Fuel Module Assembly combines ease of installation, solid performance, and durability, making it a recommended upgrade for Mustang GT owners looking to enhance their driving experience.
Apr 4, 2024
Review shared from Holley Drop-In Fuel Module Assembly; 300 LPH (06-09 Mustang GT)
Easy peasy
Quick and easy purchase. This mode was a drop in replacement. I will be back!
Feb 5, 2024
Review shared from Holley Drop-In Fuel Module Assembly; 300 LPH (06-09 Mustang GT)
Holley fuel sender
Product was easy to install in less than an hour and I am not experienced in this field. Shipping was super fast arrived before it was scheduled. Fuel sender included o-ring for install. I can def tell an acceleration change! Just from this unit it has brought life back to my 4.6!
Nov 12, 2023
Review shared from Holley Drop-In Fuel Module Assembly; 255 LPH (1998 Mustang GT, Cobra)
98 cobra
Replaced fuel pump with a 190 stock replacement and gas gauge wouldn’t work and couldn’t feed fuel fast enough. Kept dying when pushing the gas pedal. Ordered this holly 255 and now gauge works as it should and have no stuttering at all. A+ fit no basket problems harness matched up perfect. (I have a California car however the non California harness is what my car came with) be sure to double check plugs to verify if you actually have a CA pump or not.
Mar 16, 2023
Review shared from Holley Chrome Carbureted Fuel Pressure Regulator; 4.5 to 9 PSI
Why you need one
If you don't get one when yours break your idle will bog, your fuel mileage will be destroyed and it will cause carbon buildup in your pistons bc the fuel to air ratio will not be right
Jan 21, 2023
Review shared from Holley Fuel Transfer Tank Pump; 6 BOLT FLANGE 450 LPH PUMP SINGLE
Pump
Very good deal pump was easy to install and after the fact you could tell she had some hp and in the mornings it was way more easier to start.
Dec 14, 2022
Review shared from Holley E85 In-Tank Electric Fuel Pump; 340 LPH (96-97 Mustang Cobra)
Fuel pump
Good upgrade and good proformance Easy to install comes with all the components
Jun 8, 2022
Review shared from Holley Fuel Tester; E85 FUEL TESTER
e-85 tester
small and compact easy to use good quality a tool needed for your car