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Screamin' Eagle Twin Cam Tire Shredder Kit - 103CI to 110CI

Part Number 92500038




This comprehensive kit provides a complete package of matched components that allow you to build a high performance 110ci Twin Cam without voiding the factory warranty. The unique Screamin' Eagle® 4.0" big bore cylinders are engineered to slip into the engine cases without case machining or modification, so the engine stays in the chassis during the build.

  • Includes 4.0" cylinders, SE CNC-Ported Cylinder Heads, matching 10.2:1 forged high compression pistons and rings, SE-259 cams, perfect-fit pushrods, high-capacity roller tappets, cam cover gaskets, heavy duty clutch spring, high flow fuel injectors
  • Also includes the SE 58mm Throttle Body with high flow fuel injectors
  • All EFI-equipped models require dealer-installed ECM calibration download or use of Screamin' Eagle® Street Tuner Kit (priced separately)
  • Recalibration is required for proper installation, See Dealer for details, Labor cost not included
  • Separate purchase of cam spacers is recommended
  • Requires separate purchase of accessory 58mm air cleaner and Cam Drive Retention Kit P/N 25566-06
  • 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 ’14-'16 Touring models, Does not fit Twin-Cooled models. Does not fit Trike models, CVO™ 110 models or models with engine cases that have been machined to accept large-bore cylinders. Requires separate purchase of accessory 58mm air cleaner and Cam Drive Retention Kit P/N 25566-06. Cam Spacer Kit P/N 25928-06 is recommended. All models require recalibration with Screamin' Eagle® Pro Street Tuner (sold separately). Labor cost not included. See Dealer for details. 50-State U.S. EPA compliant.

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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

    SE 4.0" bolt-on cylinders, forged 10.2:1 high compression pistons and rings, SE 58mm throttle body, high flow fuel injectors, SE CNC-ported cylinder heads, SE-259 cams, perfect-fit pushrods, SE high-capacity roller tappets, top end and cam cover gaskets,
  • Sold Separately

    cam spacers, air cleaners, cam drive retention kit
  • Upgrade Stage Level

    Stage IV
Twin Cam Tire Shredder Kit - 103CI to 110CI is rated 4.4 out of 5 by 8.
Rated 4 out of 5 by from Good bang for the buck! I had this installed on my 09 Ultra. I am really happy with the added performance. It is like adding another cylinder. After reading the other reviews, I need to redyno. My 09 came out with 110 ft. lbs of torque, and 109hp. I was also pleased there weren't lot of hidden costs. Great addition to my favorite toy.
Date published: 2016-09-08
Rated 5 out of 5 by from Tire Shredder I installed this on my 15' FLTRXS. It was worth every buck. I also am using the SE Race Tuner and the Elite Breather air filter set up.. After about 500 miles I dyno'd it and it is on a conservative map until the motor is completely broken in. 115.1 hp and 121.9 torque at about 5600 rpms! Once broken in I will remap it and give it a little more. Roll out of the hole and knuckle it and it spins the tire and lifts the front end off the ground shifting into second gear. This kit also changes the exhaust tone to a deep thumping. I am running with S&S head pipes with Rinehart slip ons. The only negative is the range dropped about 40 miles to a tank of fuel but with 115 horse it makes up for the loss in range.
Date published: 2016-08-11
Rated 5 out of 5 by from power and compression The power and compression on the bike now is refreshing. I was coming off a 113ci. I missed some of that power. Now it feels really nice. I'm much happier with my bike. I'm still at break-in miles, so I can't even really get on it aggressively. But I'm telling you its already a large improvement from the HO103. My exhaust sounds tons throatier. too. I will have to check my mpg over time. I'm sure it will have gone down some. But worth it to me to have the torque and horsepower I was accustomed to.
Date published: 2016-06-06
Rated 5 out of 5 by from 2016 Heritage Classic with Stage V Tire Shredder Installed The Stage 5 kit gave me more than I ever expected. Hard shift first to second the front tire lifts off the ground on a Heritage Classic.The Bike is wicked fast! 117 hp with 121 lbs of torque after final tune at 1,300 miles on install. I did the install when the bike was 2 weeks old with 570 miles on it!
Date published: 2016-05-08
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I just ordered the kit and was wondering what oil to use for the break in and what spark plugs to use ?

Asked by: Cris79
Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject Test Reject
Answered by: bvqateam
Date published: 2016-12-30

what is the installation costs from Harley

Asked by: neighborRay1
Hi NeighborRay1, There is not a set standard price for installation from Harley-Davidson. Each H-D dealership is independently owned and operated and can set prices accordingly--this will vary across states as well. Hope this helps!
Answered by: RowdyGrl79
Date published: 2016-10-19


Asked by: AMOON2

TWB or Cable Throttle Body

Is the throttle body, throttle by wire or throttle cables, or can you get both?
Asked by: CMOlson1988

It Will Fix a 2016 Heritage Softail

I had this kit installed on my 2016 Heritage Softail with a Vance and Hines 2 into 1 exhaust. Fits fine, Runs Great
Asked by: Rufus
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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.