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Screamin' Eagle Sportster 883CC to 1200CC Stage I Conversion Kit

Part Number 30003-10


Finish / Color: Black Non-Highlighted



Make your Iron 883™ roar. This complete conversion kit will alter the personality of your 883-equipped Sportster® model. Designed to bring your XL883 model up to XL1200 specifications.

  • Black Non-Highlighted
  • Includes Sportster® High-Flow air cleaner kit, XL1200 cylinder heads, XL1200 cylinders, XL1200 pistons and rings, and heavy duty clutch spring, top end gasket kit
  • No case machining is required for installation
  • Street compliant when used with stock mufflers
  • All models require dealer-installed ECM calibration (priced separately)
  • Recalibration is required for proper installation, See Dealer for details, Labor cost not included
  • When installed by an authorized Harley-Davidson® Dealer at the time of vehicle delivery, these kits do not impact the vehicle’s limited warranty

Fits 50-state '07-later XL883 models. All EFI models require ECM calibration for proper installation. '17-later models require recalibration with Screamin' Eagle® Pro Street Tuner (sold separately). Labor cost not included. See Dealer for details.

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  • Model
  • These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled. Complies with the requirements of 40 CFR Part 86, subparts E and F.
  • Dealer Install Recommended

  • Warranty

    1 year limited warranty – Go to for full details
  • Requires ECM Calibration

  • Sold in Unit

  • In The Box

    Sportster High-Flow air cleaner kit, XL1200 cylinder heads, XL1200 cylinders, XL1200 pistons and rings, and heavy duty clutch spring, top end gasket kit
  • Sold Separately

    Contact your local dealer for details
  • Upgrade Stage Level

    Stage IV
Sportster 883CC to 1200CC Stage I Conversion Kit is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from 883 Stage 1 Kit I purchased a 2016 XL883N for my girlfriend last month. The bike was as expected for a 883 Sportster could cruise on the highway at 70 mph easily however it was a struggle at 80 mph. With 110 miles on the bike i had Naples HD install a Stage I 1200 kit, with a Sands 2 into 1 stainless exhaust. THIS BIKE TURNED INTO A MONSTER!!! After 550 miles i had it tuned and dyno'd ... 78 HP and 81 lbs of Torque. In 4th gear it will Scream from 60 MPH to 104 (rev Limiter) very very very very strong and very quick. This is with a 210 lb rider. You will not be disappointed with this upgrade! It will leave my 2016 stock softail in the dust. I would like to ad that with the upgrade the engine runs much smoother, with a much reduced vibration
Date published: 2016-05-07
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Preformance kit for 883 to 1200

I bought a used 2009 883L, I was told it has a stage 1 conversion kit installed, how can I tell if this is so, Thank You
Asked by: Kimy12

What will my Rpm read in 5th gear traveling at 100 kph or 140 kph?

What real time results can I expect from this conversion kit? On my 2015 super low 883; while in 5th gear traveling between 100 to 140 kph my rpm reads between 3000 to 4500+. In similar fashion what rpm will the kit deliver in 100 kph or 140 kph?
Asked by: Demonix

883 Iron 2014 Conversion kit 1200

Good Afternoon. I want to purchase the 1200 conversion kit for my bike but I already own the air intake. Can I purchase it without the airfilter/intake? Thanks NM
Asked by: nicm
Hi NM, Unfortunately, this kit can not be sold without the air intake included. Thanks, FXS78
Answered by: FXS78
Date published: 2015-06-01

I want to install the 883-1200 Stage 1 conversion to my 2009 883 Iron. Do I need to take the bike to a dealer for the ECM calibration ?

I live in Hong Kong and very difficult to get the bike to a dealer. Can I remove the ECM and take to a dealer when I visit the USA for recalibration? Thanks.
Asked by: Shane
Hello Shane, You should be able to remove your ECM and bring it with to have it calibrated while you are in the US. I would recommend contacting the dealer you would like to take it to ahead of time to make sure it will not be a problem. Thank you!
Answered by: JD34
Date published: 2015-06-01

For the installation of the Stage 1 Conversion Kit, what other devices I need considering?

Dear HOG´s, If I wanna upgrade my bike (Sportster 883 XL, 2014), I know that the principal parts for this is the stage 1 Conversion Kit. But i need know, if I need considering other devices for make this conversion, for example: I need change the air filter type? I need change the Exhausts? What other devices I need considering for this upgrade? All this questions is because I observe that some of the dealers not been performed this work. I wait your prompt and suggestion. Regards. Juan Loredo
Asked by: Berserker
Hi Berserker, Thank you for your question. You can use the same header/exhaust and this kit comes with an intake kit. You will need to have the dealer calibration the ECM. I do not show that you'll need any other components. Thank you.
Answered by: PeteHD
Date published: 2014-11-20
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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.