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  3. AUDI 07K103403F

AUDI 07K103403F Ttrs Engine Cylinder Head Tfsi Daza RS3 2.5

fits make: Audi. year: 2017–2020.

07k103403f Audi 18-22 Ttrs / 17-20 Rs3 Engine Cylinder Head 2.5 Tfsi Daza

( Manufacturer Part Number: 07K103403F ), ( Type: Cylinder Head ), ( Custom Bundle: No ), ( Intended Use: Replacement Part )

Review AUDI Ttrs Rs3 Engine Cylinder Head 2.5 Tfsi Daza fits 2017–2020

The **Audi 07K103403F (2018 2022 TTS, 2017 2020 RS3) 2.5L TFSI Engine Cylinder Head** is a high-performance, precision-engineered component designed to deliver the optimal balance of power, efficiency, and reliability for Audi s flagship high-performance models. This cylinder head, manufactured under Audi s strict quality standards, is specifically tailored for the **2.5L TFSI (Turbocharged Fuel Stratified Injection) engine code DAZA**, which powers the **RS3 (8P2) and TTS (8N2) models** within the specified production years. Crafted from high-grade aluminum alloy, it features an advanced **four-valve, dual overhead camshaft (DOHC) design**, ensuring superior airflow and combustion efficiency for maximum performance. The head incorporates **intake and exhaust ports optimized for high-revving applications**, allowing the engine to achieve its targeted **382 420 horsepower** (depending on the model variant) while maintaining precise throttle response and torque delivery. Key features include **integrated turbocharger support components**, such as precise bolt patterns for the **garrett turbocharger (or equivalent)**, along with **high-flow intake and exhaust valve configurations** to enhance scavenging and reduce backpressure. The **DAZA engine s direct and port injection system** is seamlessly integrated into this cylinder head, ensuring proper fuel distribution for both low-end torque and high-revving performance. Additionally, the head is equipped with **Audi s advanced valve timing system (VVT)**, allowing for dynamic cam phasing to optimize efficiency across the entire RPM range. Built to Audi s exacting specifications, this cylinder head is a critical component for maintaining the engine s performance, longevity, and compliance with emissions standards, making it an essential replacement for those seeking to restore or upgrade their RS3 or TTS s powerplant. Whether for a factory rebuild, performance tuning, or engine restoration, this cylinder head ensures that the DAZA engine operates at peak efficiency, delivering the exhilarating acceleration and precision driving experience Audi s high-performance models are renowned for.

### **Pros and Cons of Buying an Audi A7 (K103403F, 2018 2022) with TTRS (2017 2020) RS3 Engine (2.5L TFSI, Daza Cylinder Head)**

#### **Overview of the Vehicle**

The **Audi A7 (K103403F)** with the **TTRS (Track & Touring Response System)** RS3 engine (2.5L TFSI, Daza cylinder head) is a high-performance variant of the A7, offering a balance between luxury, handling, and speed. The **Daza head** (a modified cylinder head with improved airflow and cooling) is a key upgrade over the standard RS3 engine, allowing for better performance and reliability.

---

### **Pros**

1. **Superior Engine Performance**

- The **2.5L TFSI RS3 engine** produces **382 400 HP** (depending on tuning and modifications) with the Daza head, offering strong acceleration and a high-revving nature.

- The **turbocharged direct-injection system** provides excellent throttle response, making it feel more engaging than a naturally aspirated engine.

- The **Daza head** improves airflow, reducing the risk of overheating and increasing power potential with tuning.

2. **Track-Oriented Handling (TTRS Package)**

- The **TTRS (Track & Touring Response System)** includes:

- **Adaptive air suspension** with adjustable ride height (lower for track, higher for comfort).

- **Quattro all-wheel drive** with a limited-slip differential for better traction.

- **Sport-tuned chassis** with stiffer suspension and optimized damping for sharper cornering.

- **Brembo brakes** (larger rotors and high-performance calipers) for better stopping power.

- The car handles like a **GT car**, making it enjoyable on both road and track.

3. **Luxury and Comfort**

- The **A7 s spacious and refined interior** (especially in higher trims like **S line or 40 TFSI**) provides premium materials, ergonomic seating, and advanced infotainment (VW Group s **MIB 3 or MIB 4**).

- **Quiet cabin** due to excellent sound insulation, making long drives comfortable.

- **Adaptive cruise control, lane-keep assist, and other driver aids** enhance safety and convenience.

4. **Reliability Improvements Over Early RS3 Models**

- The **Daza cylinder head** (common in later RS3s and some S5s) reduces the risk of **valve float and overheating** issues seen in early 2017 2018 models.

- **Improved cooling systems** (larger radiators, better oil cooling) help prevent long-term engine stress.

- **Quattro system** is more refined than earlier Audi models, reducing drivetrain wear.

5. **Aftermarket Potential**

- The **RS3 engine is highly tunable**, with options for **ECU tuning, forced induction (turbo/supercharger), and exhaust upgrades** to push power further.

- **Audi s strong aftermarket support** means finding parts and mechanics is easier than with some luxury brands.

- **Performance parts** (suspension, brakes, exhaust) are widely available for further customization.

6. **Resale Value (Compared to Other Audi Models)**

- While not as high as a **Porsche 911 or BMW M5**, the **A7 RS3 holds value better than a standard A7** due to its performance reputation.

- **Low-mileage examples** (under 30,000 miles) retain strong resale potential.

7. **Versatility**

- The **A7 s wagon body** offers **more cargo space** than a coupe, making it practical for daily use.

- The **adjustable suspension** allows for a **softer ride on highways** and a **stiffer setup for track days**.

---

### **Cons**

1. **Higher Maintenance Costs**

- Audi parts and labor are **expensive**, especially for high-performance components (turbochargers, suspension, brakes).

- **Oil changes, cooling system flushes, and turbo maintenance** add up over time.

- **Quattro drivetrain** requires more frequent inspections than RWD cars.

2. **Potential Engine Reliability Issues (If Not Well-Maintained)**

- While the **Daza head improves reliability**, **early RS3 models (2017 2018) had issues with:**

- **Valve float** (due to poor airflow in the stock head).

- **Oil consumption** (some engines burn oil if not serviced properly).

- **Turbocharger failures** if not maintained (oil changes every **5,000 7,500 miles** are critical).

- **Later models (2019 2022) with Daza heads** are more reliable, but **poor maintenance can still lead to problems**.

3. **Fuel Economy is Poor for a Luxury Car**

- The **RS3 engine is thirsty**, averaging **12 15 MPG combined** (worse in stop-and-go traffic).

- **Diesel alternatives (like the A7 3.0 TDI)** offer better fuel efficiency but less power.

4. **Depreciation Remains a Factor**

- While the **RS3 holds value better than a standard A7**, it still **loses 20 30% of its value in 3 4 years**.

- **Luxury car depreciation is inevitable**, so buying used may be smarter than new.

5. **Complexity and Specialized Repairs**

- The **turbocharged engine, Quattro system, and advanced electronics** require **skilled mechanics** for repairs.

- **Finding a reputable Audi specialist** can be difficult in some areas, leading to higher repair costs.

6. **Noise and Vibration at High RPMs**

- The **2.5L TFSI revs high (up to 7,500 RPM)**, which can be **loud and harsh** in the cabin if not properly tuned.

- **Road noise** is noticeable at highway speeds due to the **open rear hatch** (unless sound deadening is added).

7. **Limited Availability of Parts (Especially for Older Models)**

- **2017 2018 models** may have **harder-to-find parts** compared to newer ones.

- **Track-specific components (like TTRS suspension parts)** can be expensive if damaged.

8. **Potential for Overheating (If Cooling System Fails)**

- The **RS3 engine generates a lot of heat**, and a **failed thermostat, water pump, or radiator** can lead to **severe engine damage**.

- **Regular cooling system flushes** are **mandatory** to prevent this.

---

### **Key Considerations Before Buying**

1. **Check Maintenance History**

- **Oil changes every 5,000 7,500 miles** (critical for turbo longevity).

- **Cooling system flushes** (every 60,000 miles or as recommended).

- **Quattro fluid and differential service** (often neglected but important).

- **Turbo inspection** (listen for unusual noises, check for oil leaks).

2. **Verify the Cylinder Head Modifications**

- Confirm the **Daza head** (look for **modified intake ports, upgraded valves, and better cooling passages**).

- **Early 2017 2018 models without Daza heads** are **less reliable** and may have **valve float issues**.

3. **Test Drive for Handling and Comfort**

- Check if the **suspension is properly adjusted** (some owners modify it too aggressively).

- Ensure **brakes are responsive** (no grinding or pulsation).

- Listen for **unusual engine noises** (whining turbos, knocking, or exhaust leaks).

4. **Budget for Future Upgrades**

- If you want **more power**, factor in **ECU tuning ( $1,000 $2,500)** or **forced induction ( $3,000 $6,000 )**.

- **Suspension upgrades (coilovers, sway bars)** can improve handling ( $1,500 $3,000).

- **Exhaust and intake modifications** ( $1,000 $2,000) can enhance performance and sound.

5. **Consider Alternative Options**

- If **reliability is a priority**, look at:

- **Audi S5 (3.0L V6, naturally aspirated, more refined but less power).**

- **BMW M5 (more power, better resale, but higher maintenance).**

- **Porsche Panamera Turbo (luxury performance, but expensive).**

- If **budget is a concern**, a **well-maintained 2019 2022 RS3** is a better choice than a 2017 2018.

---

### **Final Recommendation**

#### **Buy If:**

You **

Details:

Off 17-20 RS3 Works With 18-22 TTRS.

part #: 07k103403f prices

  • $1584.99-$2200.00

specifications cylinderheapar:

  • for makes: Audi
  • for years: 2017-2020
  • mpn: 07k103403f
  • type: Cylinder Head
  • custom bundle: No
  • intended use: Replacement Part

payments cylinderheapar:

  • other
  • credit card: Mastercard
  • wallet: Paypal

returns cylinderheapar:

  • policy: No Returns

shipping cylinderheapar:

  • transit: 4-11 Days
  • type: Calculated
  • class: Standard
  • carrier: USPS
  • service: USPS Ground Advantage
  • cost: $89.72

seller cylinderheapar:

  • rating: 99.1%
  • city: Sioux Falls, South Dakota
  • # reviews: 214

general cylinderheapar:

  • Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: Used

offer cylinderheapar:

  • quantity: 1
  • availability: In Stock
  • best offers: True
  • sold: 0
  • options: Ship-to-home
  • started: June 9, 2026
for makes: audi, for years: 2017-2020, type: cylinder head, custom bundle: no, intended use: replacement part,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 12269100795655752,
Audi 07K103403F Is Similar To:
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4 offers $1584.99–$2200.00 USD
  • Used. Offer #1 priced at $2200.00 + $89.72 shipping estimate = $2289.72* total. Off 17-20 RS3 Works With 18-22 TTRS.+$89.72 shipping
  • Used. Offer #2 priced at $1584.99 + $1001.61 shipping estimate = $2586.60* total. +$1001.61 shipping
  • Used. Offer #3 priced at $1972.46 + $1001.61 shipping estimate = $2974.07* total. +$1001.61 shipping
  • Used. Offer #4 priced at $1953.78 + $992.13 shipping estimate = $2945.91* total. 2018 On Part Number - Engine Type - 2.5 PETROL Mileage - 8,956 Engine Code - DNWA WITHOUT CAMSHAFTS THERE MAY BE SOME AGE RELATED MARKS (SEE IMAGES).+$992.13 shipping

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