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Tab Performance Redline Performance Kit | Milwaukee-Eight Engines - 121, Redline 2-1 System, Chrome REDLINE-PERFORMANCE-KIT-121-REDLINE-2-1-SYSTEM-CHROME

TAB PERFORMANCE  |  SKU: TABPREDLINE-PERFORMANCE-KIT-121-REDLINE-2-1-SYSTEM-CHROME
Regular price $4,914.81
Shipping calculated at checkout.

Please verify your selection: Photos may show other available colors, styles, or finishes. The product you are ordering is the option combination shown below; use the selected options and manufacturer part number as the final reference.

Selected Options

Engine Size 121
Redline Exhaust System Redline 2-1 System
Muffler & Pushrod Finish Chrome

Redline Performance Kitfor Harley-Davidson

Unleash the full potential ofyour Harley-Davidson with the Redline Performance Kit—a complete,high-performance upgrade engineered for riders who demand uncompromising power,precision, and sound.
This kit detailed below is a bolt on kit, but does require some specialty tools and a high level of technical ability. This is not a kit that we can provide installation support through email or customer phone support. If you do not have the technical expertise to do an install of this nature you will need to bring the kit to a local trained professional who can complete the installation for you.

Kit Includes:

  • Redline Cam – Designed for aggressive torque and horsepower gains across the RPM range, delivering explosive acceleration and smooth cruising.
  • High-Performance Lifters – Built to withstand extreme conditions, ensuring durability and consistent valve operation. Each Precision Tappet is hand assembled to exacting tolerances and designed for quiet operation and rapid pump up and all are made in the USA.
  • S&S Tappet Cuffs - Factory tappet guides are constructed of plastic and are at risk for allowing the tappets to twist under heavy stress. S&S Tappet Cuffs capture the tappets without impacting vertical motion and keeping them perfectly aligned, even in high stress, high RPM situations.
  • S&S Adjustable Pushrods –Super strong chromoly steel reduces pushrod flex. Pushrods come with Chrome or Black pushrod covers, O-rings and Cover keepers.
  • High-Flow Injectors (121 Models Only) – Maximize fuel delivery for enhanced combustion and throttle response.
  • Impact Wiring Solutions Tuner – Custom-mapped for this kit, giving you full performance without the added cost of a dyno tune. This unit will ship separately from the rest of the kit.
  • Calibration – As stated above, once we receive your detailed vehicle information we will load the fully calibrated map on the IWS and have it shipped out to you ready to go. If you have any questions or issues regarding the tune, please reach out to IWS for tech support. You will need to have professionally installed the kit and not added components or made modifications to the kit for them to be able to provide remote tuning support.
  • Cometic Gasket Set – All necessary gaskets included for a leak-free, professional-grade installation.
  • Redline Exhaust System (2-1 or 2-2) – Choose your style: a thunderous 2-1 for peak performance or a classic 2-2 for balanced flow and iconic Harley sound. Both systems are crafted from high quality chrome plated steel and tuned for maximum power and aggressive tone.

Why Choose Redline?

Have you ever asked any ofthe following questions? What is the best cam, which exhaust is the bestperforming, do I need to have a custom tune? If you have this is the kitfor you. We have done the research, completed the testing, and built thecalibrations. We take all of the guesswork out of the equation and giveyou a complete system that performs great across the board. There is noanswer to which part is the best, it’s all in how they work together to createa machine that is reliable and runs with the best. With this kit you canrest assured you end up with a great build that is bolt on and go.

Do I need to tune with this kit?

That is the beauty of our kits, when you select the IWStuner option, it will come with a preloaded map for your 121 motor (othercalibrations are in the works) so there is no need to pay for expensivecalibrations, we’ve done the work for you and it comes with your new kit. We will need you to send us your VIN number and Year, Make, and Model so we canpreload the maps for your new bolt on kit. If you choose to purchase the cam kit only, then you will be responsible for the tuning required to make sureeverything runs smooth.
Additional information needed?

When purchasing this kit, we will need some additional information about your bike to make sure the tuner is setup properly for your ride. Please follow the link below to submit your vehicle information.
Vehicle Info
This product is not covered under the typical TAB Performance lifetime warranty. If the product arrives damaged we will stand behind our products but you as the engine builder and assuming liability for the modifications made to your motorcycle and these modifications will likely void your manufacturers warranty.
Bolt it on. Fire it up.Feel the difference.


***This Product Does NOT Conform to C.A.R.B Standards and We Therefore Can NOT Ship This Item to California. If You Place an Order for This Product with a Ship To Address in California, Your Order Will Be Cancelled and Refunded.***

Specs

Manufacturer Part Number REDLINE-PERFORMANCE-KIT-121-REDLINE-2-1-SYSTEM-CHROME

2017-2019 Harley-Davidson Electra Glide Ultra Classic FLHTCU
2017-2019 Harley-Davidson Electra Glide Ultra Classic FLHTCUI
2017-2026 Harley-Davidson Road Glide FLTRX/FLTRXS
2017-2023 Harley-Davidson Road Glide Special
2017-2019 Harley-Davidson Road Glide Ultra FLTRU
2017-2019 Harley-Davidson Road King Classic FLHRC
2017-2022 Harley-Davidson Road King FLHR
2017-2022 Harley-Davidson Road King Police FLHP
2017-2025 Harley-Davidson Road King Special FLHRXS
2017-2026 Harley-Davidson Street Glide FLHX/FLHXS
2017-2023 Harley-Davidson Street Glide Special
2017-2023 Harley-Davidson Ultra Limited
2017-2019 Harley-Davidson Ultra Limited Low
2018 Harley-Davidson 115th Anniversary Street Glide
2018 Harley-Davidson 115th Anniversary Street Glide Secial
2018 Harley-Davidson 115th Anniversary Ultra Limited
2019-2022 Harley-Davidson Electra Glide Standard FLHT
2019-2022 Harley-Davidson Electra Glide Standard FLHTI
2020-2024 Harley-Davidson Road Glide Limited FLTRK
2022-2023 Harley-Davidson Road Glide ST FLTRXST
2022-2023 Harley-Davidson Street Glide ST FLHXST
2023-2025 Harley-Davidson CVO Road Glide FLTRXSE
2023 Harley-Davidson CVO Road Glide Limited FLTRKSE
2023 Harley-Davidson CVO Street Glide
2023-2024,2026 Harley-Davidson Road Glide 3 FLTRT
2024-2026 Harley-Davidson CVO Road Glide ST FLTRXSTSE
2024-2026 Harley-Davidson CVO Street Glide FLHXSE
2024,2026 Harley-Davidson Road Glide Police FLTRXP
2025 Harley-Davidson CVO Road Glide RR FLTRXRRSE
2025 Harley-Davidson Street Glide Ultra FLHXU
2026 Harley-Davidson CVO Street Glide Limited FLHXLSE
2026 Harley-Davidson CVO Street Glide ST FLHXSTSE
2026 Harley-Davidson Road Glide Limited FLTRXL
2026 Harley-Davidson Street Glide Limited FLHXL

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.

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