POWER STOP K5543 Rear 889906296409 SRX/2011 9-4X/

( Brand: Power Stop ), ( Manufacturer Part Number: K5543 ), ( UPC: 889906296409 )

Review POWER STOP Rear Cadillac Srx/ Saab 9-4x/ fits 9-4X SRX 2010–2015

The **Power K5543** is a high-performance, factory-specification rear exhaust system meticulously engineered to deliver unparalleled sound, efficiency, and styling for the **2010 2015 Cadillac SRX** and **2011 2015 Saab 9-4X**, two luxury SUVs that share a common platform and demand premium aftermarket upgrades. Designed with precision to match the stock exhaust s routing and mounting points, this system ensures a seamless integration while enhancing the vehicle s exhaust note with a deep, resonant growl that resonates with both sporty and refined driving dynamics. Crafted from **409 stainless steel**, the **K5543** features a **dual-tip exhaust design** with polished, high-gloss finishes that not only elevate the vehicle s aesthetic appeal but also resist corrosion, ensuring longevity even in harsh driving conditions. The system incorporates **high-flow mufflers** that maintain a balanced exhaust tone rich and engaging without sacrificing the vehicle s original character while the **cat-back configuration** (from the catalytic converters onward) maximizes airflow, supporting improved engine performance and throttle response. The **clamp-style mounting brackets** are designed for easy installation, requiring minimal modification to the stock exhaust system, and the **heat-shielded tips** prevent excessive heat transfer to the vehicle s undercarriage, protecting surrounding components. Whether cruising on the highway or navigating tight city streets, the **Power K5543** transforms the exhaust experience into a dynamic, attention-grabbing statement, blending performance, durability, and timeless style for enthusiasts who demand nothing less than excellence.

### Pros and Cons of Buying a Power K5543 Rear (2010 2015 Cadillac SRX / 2011 2015 Saab 9-4X)

1. **Performance and Power** The K5543 is a high-performance V8 engine (5.3L) producing around 400 420 horsepower and 400 lb-ft of torque, making it one of the most powerful engines in its class during its time. This provides strong acceleration and towing capability, especially for the SRX (which was marketed as a luxury crossover).

2. **Luxury and Comfort** The Cadillac SRX (and Saab 9-4X, which shares the same platform) offers a refined interior with premium materials, comfortable seating, and advanced features like heated/ventilated seats, leather upholstery, and a high-quality infotainment system (in later models).

3. **Reliability (Compared to Saab)** While Saabs of this era had a reputation for reliability issues, the Cadillac SRX (which uses the same platform) was generally more robust. The K5543 engine, when properly maintained, is known for durability, especially in the SRX s application where it was tuned for longevity.

4. **Towing and Hauling** The K5543 s torque makes it well-suited for towing trailers or carrying heavy loads, which can be useful for owners who need a versatile vehicle.

5. **Aftermarket Support** The K5543 is a popular engine in the tuning community, with aftermarket parts available for performance upgrades, cooling improvements, and reliability enhancements.

6. **Classic Styling** The SRX and 9-4X have a distinctive, bold design that stands out on the road, appealing to those who prefer a more aggressive or luxury-oriented look.

7. **Potential for Modifications** If you enjoy working on cars, the K5543 offers opportunities for tuning, such as forced induction (turbo/supercharger), exhaust upgrades, and suspension modifications to enhance handling.

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1. **Fuel Economy** The K5543 is a thirsty engine, averaging around **14 16 MPG combined** in the SRX. This can lead to high fuel costs, especially if the vehicle is driven frequently or for long distances.

- **Transmission (6T70/6T75)** The automatic transmission is known for being finicky and prone to failure, often requiring expensive rebuilds or replacements.

- **Suspension and Steering** The SRX s suspension can wear out quickly, especially if driven on rough roads. Power steering fluid leaks and worn bushings are common issues.

- **Electrical Gremlins** Both the SRX and 9-4X have had issues with electrical systems, including faulty sensors, wiring problems, and infotainment glitches.

- **Oil Consumption** Some K5543 engines (especially in Saabs) are notorious for burning oil, requiring frequent top-ups or even major engine work if neglected.

3. **Saab s Reputation** The 9-4X (Saab s version) shares the same platform as the SRX but often suffers from Saab s legacy of poor reliability, including:

- **Transmission shifting issues**

- **Rust problems** (especially in snowy climates)

- **Infotainment system failures**

- **General neglect in aftermarket parts and support** compared to Cadillac

4. **Depreciation and Resale Value** Both the SRX and 9-4X have seen significant depreciation. The SRX holds value slightly better than the Saab, but neither is a great long-term investment.

5. **Noise and Vibration** The K5543 can be noisy under acceleration, and some owners report excessive vibration at certain RPMs, which may indicate suspension or drivetrain issues.

6. **Parts Availability** While not as scarce as older Saab parts, some components (especially for the 9-4X) can be harder to find, leading to longer wait times for repairs.

7. **Driving Experience** The SRX and 9-4X are not known for being nimble or sporty. The ride is comfortable but can feel sluggish in handling, and the steering can be heavy.

- **Transmission fluid leaks**

- **Suspension wear (control arms, bushings, shocks)**

- **Rust (especially in the 9-4X)**

- **Electrical faults (check all sensors and wiring)**

- **Oil leaks (valve cover, oil pan, rear main seal)**

---

### **Conclusion and Recommendation**

The **Power K5543 rear (2010 2015 Cadillac SRX / 2011 2015 Saab 9-4X)** is a vehicle with **strong performance and luxury appeal**, but it comes with **significant drawbacks**, particularly in reliability, maintenance costs, and fuel efficiency. Here s how to decide if it s the right purchase for you:

- You prioritize **power and towing capability** over fuel economy.

- You re willing to **budget for maintenance**, especially transmission and suspension work.

- You plan to **drive it sparingly** and keep up with regular upkeep (oil changes, fluid checks, suspension inspections).

- You enjoy **modifying or working on cars** and don t mind dealing with occasional issues.

- You prefer the **luxury feel of the SRX** over the Saab s more utilitarian (but less refined) 9-4X.

- You find the **styling appealing** and don t mind a vehicle that s not known for being the most reliable.

- You re looking for **high fuel efficiency** or a **low-maintenance** vehicle.

- You can t afford **potential transmission or suspension repairs** (which can cost **$2,000 $5,000 **).

- You live in a **snowy or harsh climate** (rust and electrical issues are more common in the 9-4X).

- You want a **smooth, reliable daily driver** without performance compromises.

- You re not comfortable **diagnosing or fixing mechanical/electrical issues** yourself.

- **Cadillac SRX** is the **better option** due to its slightly better reliability, higher resale value, and Cadillac s reputation for luxury.

- The **Saab 9-4X** is only worth considering if you find a **well-documented, low-mileage example** with a **clean service history** and are prepared for potential Saab-specific quirks.

If you re set on this platform, **buy a Cadillac SRX** with **under 80,000 miles**, a **service record**, and **no transmission or suspension issues**. Have a **pre-purchase inspection** by a mechanic familiar with GM s 6T70/6T75 transmissions. If you re on a tight budget, consider a **lower-trim SRX** (like the 28T) to avoid unnecessary luxury costs.

If you re open to alternatives, **consider a more modern luxury crossover** (e.g., 2016 Cadillac XT5, Ford Explorer, or Chevrolet Traverse) for better reliability and fuel economy. However, if you love the **K5543 s power and the SRX s styling**, it can be a fun project car just be prepared for the challenges that come with it.

Details:

Brake rotor, pad hardware engineered to work together increase Stopping Power, improve durability eliminate dust. Low dust braking validated through on-vehicle 3rd party tests in Los Angeles, showing on average 30 less versus OE. American Express. Drilled Slotted performance rotors for maximum cooling.

Dual layer high temp rubberized shims insulate noise for virtually silent braking. Power Stop engineered carbon-fiber ceramic compound significantly enhances braking performance versus traditional brake pads. Vehicle Fitment. Rear: Cadillac SRX 2016 - 2010 ; Saab 9-4X 2011.

Rotors except for hub assemblies are zinc plated maximum protection against rust. Includes stainless steel installation hardware and high temperature ceramic brake lubricant. Disc Brake Pad and Rotor Kit.

part #: k5543 prices

• $251.15-$365.99

specifications accperformanc:

• for models: 9-4x, Srx
• for makes: Cadillac, Saab
• for years: 2010-2015
• brand: Power Stop
• mpn: K5543
• upc: 889906296409

payments accperformanc:

• credit card: Discover
• other
• wallet: Google-pay

seller accperformanc:

• rating: 99.1%
• city: , Ohio
• # reviews: 614936

general accperformanc:

• Parts Accessories > Permance Racing Parts > Accessories
• condition: New

shipping accperformanc:

• class: Standard
• cost: $0.00
• type: Fixed
• transit: 3-7 Days
• service: Standard

offer accperformanc:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 10
• started: February 2, 2026

returns accperformanc:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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