1. Motorcycle Intake & Fuel Systems Deals
  2. sku: 22601503684510723
  3. HARLEY DAVIDSON 29815-02

HARLEY-DAVIDSON 29815-02 Screaming Big Intake

fits model: Eagle. make: Eagle, Harley.

29815-02 Harley-davidson Screaming Eagle Big Bore Intake

( Brand: Harley-davidson ), ( Manufacturer Part Number: 29815-02 ), ( Part Type: Intake ), ( Manufacturer Warranty: 1 Month ), ( Item Diameter: 40 Mm ), ( Universal Fitment: No ), ( Placement On Vehicle: Right ), ( California Prop 65 Warning: N.a. )

Review HARLEY DAVIDSON Screaming Big Bore Intake fits EAGLE

The **Harley-Davidson 29815-02 Screaming Eagle Big Intake** is a high-performance air intake system meticulously engineered to unleash the untamed power and raw throttle response of your Harley-Davidson engine. Designed exclusively for the legendary **Screaming Eagle** lineup including the **Milwaukee-Eight** and **Evolution** engines this intake system is a game-changer for riders seeking an aggressive, high-revving experience. Crafted from premium materials, the **Big Intake** features a **large-diameter, high-flow plastic intake tube** that maximizes airflow into the engine, allowing for a more aggressive throttle response and a deeper, more resonant exhaust note. The system is built with a **durable, heat-resistant plastic housing** that ensures longevity while maintaining structural integrity under extreme conditions. The **Screaming Eagle Big Intake** is not just an upgrade it s a statement, transforming the sound of your bike into a commanding, throaty growl that turns heads and commands attention. Whether cruising down the highway or tearing through a twisty backroad, this intake system delivers an exhilarating blend of power and character, making every ride feel more dynamic and engaging. Perfect for enthusiasts who demand more from their Harley, the **29815-02** is a must-have for those who refuse to compromise on performance or presence.

### Pros and Cons of buying a Harley-Davidson 29815-02 Screaming Eagle Big Intake

The **Harley-Davidson 29815-02 Screaming Eagle Big Intake** is a high-performance intake manifold designed for Harley-Davidson engines, particularly those in the **Screaming Eagle** lineup (such as the **Pan America, Road Glide, and other high-performance models**). Below is a detailed breakdown of its advantages and disadvantages.

---

### **Pros**

1. **Enhanced Performance**

The Big Intake is engineered to improve airflow into the engine, which can lead to better throttle response, increased horsepower, and smoother power delivery. It is optimized for high-revving applications, making it ideal for performance-oriented riders.

2. **High-Quality Materials**

Harley-Davidson uses durable materials like **aluminum and reinforced plastics** to ensure longevity and resistance to heat and stress. The design is robust, reducing the risk of warping or failure under heavy loads.

3. **Compatibility with Screaming Eagle Engines**

This intake is specifically designed for **Screaming Eagle engines**, which are already tuned for high performance. Pairing it with the right camshaft, fuel system, and exhaust can unlock significant power gains, especially in naturally aspirated or mild turbocharged setups.

4. **Improved Throttle Response**

The larger intake ports allow for better air intake, reducing vacuum lag and improving acceleration, particularly at higher RPMs. This is beneficial for both street riding and track use.

5. **Aesthetic Appeal**

The **Screaming Eagle branding** and aggressive styling give the bike a more aggressive, performance-oriented look. For enthusiasts, this is a visual upgrade that matches the engine s capabilities.

6. **Backward Compatibility with Some Modifications**

While it is designed for newer Screaming Eagle engines, some aftermarket tuners and performance shops can adapt it to work with other Harley engines (such as **Evo or Twin Cam**) with proper modifications, though this is not officially supported.

7. **Part of Harley s Performance Lineup**

As a **factory-supported performance part**, it benefits from Harley-Davidson s engineering and testing, ensuring reliability compared to some aftermarket alternatives.

---

### **Cons**

1. **Expensive**

The **29815-02 Screaming Eagle Big Intake** is a premium part, costing **hundreds of dollars** (typically **$300 $500 **, depending on market conditions). For riders on a budget, this may not be a justifiable upgrade unless performance gains are significant.

2. **Requires Supporting Modifications**

Installing this intake alone **will not** dramatically improve power unless paired with:

- A **performance camshaft** (e.g., **Screaming Eagle cam or aftermarket high-performance cam**)

- A **tuned fuel system** (ECU flash, fuel injectors, or a standalone ECU like **Haltech or Power Commander**)

- A **high-flow exhaust system** (to properly evacuate the increased airflow)

- Possibly a **turbocharger or supercharger** (if going for forced induction)

Without these, the gains may be minimal, making the upgrade less cost-effective.

3. **Complex Installation**

The intake manifold is not a plug-and-play upgrade. It requires:

- **Removal of the stock intake**

- **Re-routing hoses and wiring** (especially for fuel and throttle body connections)

- **Possible throttle body replacement** (some setups require a **high-flow throttle body**)

- **ECU tuning** (to prevent fueling issues or rough idle)

This may require **mechanical expertise** or a visit to a **Harley dealership or performance shop**, adding to labor costs.

4. **Potential Fueling Issues**

A larger intake increases airflow, but if the **fuel system cannot keep up**, it can lead to:

- **Lean conditions** (poor combustion, overheating, or engine damage)

- **Rough idle or stalling**

This necessitates **ECU tuning or fuel system upgrades**, which can be costly.

5. **Not a Guaranteed Power Increase**

The actual **horsepower and torque gains** depend on:

- The **stock engine s condition** (if the engine is worn, gains may be limited)

- **Other supporting modifications** (exhaust, cam, fueling)

- **Rider expectations** (some may not notice a significant difference if other components are limiting performance)

6. **Weight Consideration**

While not excessively heavy, the **Big Intake is heavier than the stock manifold**, which could slightly affect handling, though the difference is usually negligible for most riders.

7. **Limited Use Case for Stock Riders**

If you are **not planning further modifications**, the **Big Intake may not be worth the investment** since stock engines are already tuned for a balanced powerband. The gains may be marginal compared to the cost.

---

### **Conclusion**

The **Harley-Davidson 29815-02 Screaming Eagle Big Intake** is a **high-end performance part** that can significantly enhance power and throttle response when properly integrated into a **modified Screaming Eagle engine**. It is best suited for **enthusiasts who are already investing in other performance upgrades** (cams, fueling, exhaust) and want to maximize their bike s potential.

However, for **casual riders or those on a budget**, the cost and complexity of installation may not justify the upgrade unless paired with a **full performance build**. If you are **not planning further modifications**, the stock intake may be sufficient, and the money could be better spent elsewhere (e.g., suspension, tires, or a full exhaust system).

---

### **Recommendation**

**Buy the 29815-02 Screaming Eagle Big Intake if:**

You are **already modifying your Screaming Eagle engine** (cams, fueling, exhaust).

You want **better throttle response and higher RPM power**.

You are **willing to invest in ECU tuning and supporting modifications**.

You **enjoy the aggressive styling** and want a factory-backed performance part.

**Avoid it if:**

You are **not planning further engine modifications**.

You **cannot afford or do not want to tune the ECU** for proper fueling.

You **prefer a simpler, lower-cost upgrade** (e.g., a high-flow air filter or exhaust).

You **ride mostly cruising** and do not need high-RPM power.

**Best Alternative Considerations:**

- If you want **performance without a full intake swap**, consider a **high-flow air filter** (e.g., **K&N or Airaid**) or a **performance exhaust system**.

- If you are **forced induction (turbo/supercharged)**, ensure the intake is **compatible with your setup** (some Screaming Eagle intakes require specific turbo kits).

- If you are **on a budget**, prioritize **ECU tuning and fuel system upgrades** before investing in an intake.

**Final Verdict:**

For the **serious Screaming Eagle builder**, the **29815-02 Big Intake is a worthwhile upgrade** when paired with the right modifications. For **stock or lightly modified bikes**, it may not offer enough benefit to justify the cost. Always **consult a Harley performance shop** before purchasing to ensure compatibility with your specific build.

Details:

part #: 2981502 prices

  • $100.00-$125.00

specifications intakefuelmotorcycle:

  • for models: Eagle
  • for makes: Eagle, Harley
  • brand: Harley-davidson
  • mpn: 29815-02
  • part type: Intake
  • manufacturer warranty: 1 Month
  • item diameter: 40 Mm
  • universal fitment: No
  • placement on vehicle: Right
  • california prop 65 warning: N.a.

offer intakefuelmotorcycle:

  • availability: In Stock
  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • started: February 23, 2026

seller intakefuelmotorcycle:

  • # reviews: 1298
  • rating: 100.0%
  • city: Holly Ridge, North Carolina

payments intakefuelmotorcycle:

  • other
  • credit card: Diners-club
  • wallet: Google-pay

returns intakefuelmotorcycle:

  • policy: No Returns

shipping intakefuelmotorcycle:

  • type: Calculated
  • service: USPS Ground Advantage
  • cost: $8.97
  • carrier: USPS
  • class: Standard
  • transit: 4-8 Days

general intakefuelmotorcycle:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
for models: eagle, for makes: eagle, harley, part type: intake, manufacturer warranty: 1 month, item diameter: 40 mm, universal fitment: no, placement on vehicle: right, california prop 65 warning: n.a.,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, sku: 22601503684510723,
Harley-davidson 29815-02 Is Similar To:
intakefuelmotorcycle logo
3 offers $100.00–$125.00 USD
  • Used. Offer #1 priced at $100.00 + $10.01 shipping estimate = $110.01* total. OEM Harley Screamin Eagle performance component. This is an earlier version of the Screamin Eagle manifold used in early Twin Cam EFI applications and performance builds.+$10.01 shipping
  • New. Offer #2 priced at $125.00 + $9.69 shipping estimate = $134.69* total. NEW SCREAMING EAGLE INTAKE.+$9.69 shipping
  • Used. Offer #3 priced at $125.00 + $10.95 shipping estimate = $135.95* total. CDI's (computers) can only be tested on the bike.+$10.95 shipping

Copyright © intakefuelmotorcycle.com