Screamin' Eagle Stage I Upgrades | Harley-Davidson

Nobody says "no" to more torque and horsepower. Screamin' Eagle components are the key to greater acceleration, increased passing muscle, & more of that rip roaring raw exhaust note that makes power more than a little addicting. Watch to learn more about Screamin' Eagle Stage I performance upgrades.

[adida]

Harely Davidson bikes have the best exhaust sound! It is music to my ears every single time.

[dnlcast]

A $30, 000 to $40, 000 motorcyle should have all of this already included from the factory!

[andrewbaggley]

As a mechanical amateur - though determined to get some real-world knowledge and practice as to how bikes run, and run well - my deepest appreciations for these, "This is how it works, " clinics. I can engage in discussions with forty-plus year veterans and sound at least halfway educated. Please keep producing and releasing the videos; the great unwashed out there are that much less ignorant after giving these a run-through.

[randyk]

Thanks for this video! I just bought a 2019 that came with Stage 1 and I wasn’t sure what that meant. My HD dealer told me the three parts, but this video really explained the reason

[martamus]

that mass sensor is for the air coming in and the o2 sensors measure what the levels air\fuel exiting the engine. the ecm can make the change for intake and mufflers without a tune. It has enough perimeters to do that without getting a tune.

[mawage]

Bought a 2012 Fatboy brand new in 2012 and of course did an immediate stage 1. Heavy breather intake, 2 into 1 Vance & Hines exhaust and Screamin' Eagle Super Tuner. I gotta say, I feel like it did a LOT more than a 10% increase. But now that I've had my fun with it for 7 years, I decided to upgrade to a stage 2 255 cam. It's currently in the shop now so I'm just waiting for the call that it's done and can't wait to see what it's got now!

[OcotilloTom]

I'm on my 3rd. Sportster (2014 "48") since 1975. I'm running Vance and Hines short shot staggered pipes with quiet baffles and a Screaming Eagle high flo air filter and commuter re-mapping and dyno . It's Spooky fast ! Seems a LOT more than a 10% increase to me.

[dennism]

I'm on my first hd a m8 road king, I'll nvr own another brand, I regret I use to to be the biggest shit talker on hd, I really regret that very much. They are expensive as u make them, but the ppl are friendly and knowledgeable for the most part.

[duckdive]

My 2019 Road Glide Special SHOULD HAVE HAD THIS ALREADY YOU FUCKERS!

[cmcdonough]

I just put a Screamin Eagle Stage 1 Upgrade on my 2020 Sportglide. Love the sound, and the performance is noticeable. 😎👍🇦🇺

[jameskeach]

I have a 17 FLHTCU. It has 21k Miles on it. I have put stage 1, then stage IV on it. Had to replace engine at 12K miles due to oil pump failure. Had to fight Harley to replace just the bottom half, and I paid for the Stage IV because I didnt trust anything that had oil failure to last. Dealer replaced oil pump first, then after it failed I got them (it took over a month) to replace bottom half. Now I was going to pay for the new Stage IV, but when they opened it up, you guessed it, Cam housing full of metal shavings. It seems the oil pump they put in as a fix was still defective. So now I need whole new motor. It's cheaper for me to replace motor with 131 crate than to repair what I already had. So yeah, I am going to consult a lawyer. South Carolina has Lemon Laws that work for the consumer, and this definitely falls under that statute.

[snakebite]

I did full stage 1 on all 3 of my bikes. 
2009 Rocker C with Screamin Eagle High Flow & V&H Big Radius 2 into 2
2014 Dyna Wide Glide with Screamin Eagle High Flow & V&H Side Shots
2021 Street Glide with Screamin Eagle High Flow & Cobra Neighbor Haters along with Cobra headers
All 3 have the Screamin' Eagle Pro Street tuner.

[POPPASHANGO]

This right here is the difference between the US format of selling vs Metric. Metric bikes come out of the crate at its factory best. HD and Indian asks top dollar and immediately try to upsell you because their products comes stripped down and basic and we are forced to pay extra for performance.

[nidgeontour]

Harley’s struggle to get over a ton from the factory! You need that stage one just so it does what it says on the stock tin! Although for a pro tuner I’ve heard Maximus is much better than the screaming eagle or power commander so I think I’ll try that as my muffler rusted and needed to come off saving me about 15lbs in weight!! Needs to be properly

[nobut]

If the bike can’t adjust itself then why does it have O2 sensors?

[mittp]

Love the way he explains about factory restriction, then convience to spend money to open them lol
Why there are restrictions in the first place.... 🤑🤑🤑🤑

[dennism]

I use to tell ppl I ride a bmw because I can't afford a Harley, man that's a no shitter...

[jsandrieux]

I purchased back in June of 2022 a brand new Street Glide Special 114.
8 months later, I am considering a 131 Stage IV kit instead of a 135 Crate Engine replacement.
Is a 131 now cheaper since the 135 is being produced?
The wait for my area in Pennsylvania for a 135 is likely up to December or later when it is officially released for here compared to scheduling a 131 kit upgrade next week.
I am just trying to weigh my options. Looking for any comments, thoughts, or suggestions for this upgrade.
Stage I, II, III, IV, or wait for the 135 crate engine?

[robertp]

Why doesn't Harley Davidson make these options from the factory instead of forcing customers to buy a motorcycle with parts they aren't going to use?  My current motorcycle is engineered well enough a stage one upgrade makes zero difference in performance.

[jasonmckinney]

So you say that if you do either slip ons or intake you need the tuner. Well if that were the case and damage would occur if you didn’t have a tuner then why doesn’t the check engine light come on after installing only slip ons? That was one of the first things I did. Actually I drilled out the baffles first and no engine light. My ride is a 2018 road glide ultra. I can see tuning if you do both intake and slip ons maybe. But unless you put on a free flowing head pipe along with intake, exhaust slip ons I’m not so sure the tune is needed. But I will tune mine when I put on my new intake soon to go along with my slip ons. Harley is always trying to trick people into buying more crap than they need because they just assume people that can afford their bikes are stupid when it comes to anything mechanical. When I go into my dealership wanting to buy a specific part those parts guys are always trying to push a more expensive equivalent part that I was wanting. I already KNOW what I want so shut your hole!