WALKER EXHAUST SOUNDFX SX-1B9C Muffler K35 5.7L V8

( Brand: Walker Exhaust Soundfx ), ( Type: Exhaust Muffler ), ( Placement On Vehicle: Exhaust Mufflers ), ( Manufacturer Part Number: SX-1B9C ), ( Item Length: 27.500 ), ( Manufacturer Warranty: Lifetime ), ( Ipn: C170 50-23 ), ( Compatible Model: K35 ), ( Compatible Year: 1978 1977 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Walker Exhaust Muffler )

Review WALKER EXHAUST SOUNDFX Muffler Gmc K35 5.7l V8 Mufflers fits C170 MV 1977–1978

Introducing the Walker Exhaust SoundFX SX-1B9C Muffler, specially designed for 1977 and 1978 GMC K35 trucks equipped with a 5.7L V8 engine. This muffler is an excellent upgrade for those seeking to enhance the exhaust note of their beloved vehicle, all while maintaining a reasonable level of noise and adhering to emissions regulations.

The Walker SoundFX SX-1B9C Muffler is built with a unique design that focuses on delivering an improved exhaust note without being overly loud or intrusive. This muffler utilizes a specific internal configuration of tubes and chambers that amplifies and modifies the exhaust pulses, resulting in a more pleasing and distinct exhaust tone.

Crafted from premium materials, this Walker muffler is built to last. The exterior is coated with a durable, high-temperature ceramic coating that not only protects the muffler from the harsh elements but also adds a sleek, modern appearance to your exhaust system. The internal components are made from corrosion-resistant stainless steel, ensuring that the muffler remains in excellent condition, even in the most demanding environments.

Installation of the Walker Exhaust SoundFX SX-1B9C Muffler is a straightforward process. The muffler comes equipped with factory-style mounting brackets, ensuring a secure and hassle-free installation. Additionally, the muffler is designed to fit perfectly with the original exhaust system, eliminating the need for any modifications or cutting of the exhaust piping.

By choosing the Walker Exhaust SoundFX SX-1B9C Muffler for your 1977 or 1978 GMC K35, you'll not only be enhancing the exhaust note of your truck but also upgrading its overall appearance and performance. This muffler is the perfect blend of style, sound, and durability, ensuring that you'll be turning heads and enjoying the improved exhaust note every time you hit the road.

The Walker Exhaust SoundFX SX-1B9C muffler is a performance exhaust component designed for 1977-1978 GMC K35 trucks with a 5.7L V8 engine. This muffler is known for its unique sound and improved exhaust flow. Here are some pros and cons of buying this muffler:

1. Unique Exhaust Sound: The primary reason for purchasing this muffler is its distinctive and aggressive exhaust note. It provides a satisfying growl that can enhance the driving experience.

2. Improved Performance: The performance exhaust can increase engine performance by reducing backpressure and improving exhaust flow. This can lead to improved acceleration and overall power.

3. High-Quality Construction: Walker Exhaust is a reputable brand known for manufacturing durable and high-quality exhaust components. This muffler is no exception, as it is built with heavy-duty materials and designed to last.

4. Catalytic Converter Compatibility: The SX-1B9C muffler comes with a built-in catalytic converter, making it a direct replacement for the stock muffler. This eliminates the need to purchase and install an additional catalytic converter.

1. Loud Exhaust: The primary con of this muffler is its loud exhaust sound. This may not be desirable for those who prefer a quieter ride or live in areas with strict noise regulations.

2. Higher Cost: Performance exhaust components, such as the Walker Exhaust SoundFX SX-1B9C muffler, tend to be more expensive than stock mufflers. This may be a deterrent for some buyers.

3. Potential for Increased Emissions: The performance exhaust can potentially increase emissions due to the reduced backpressure and improved exhaust flow. This may be a concern for those who prioritize emissions reduction.

In conclusion, the Walker Exhaust SoundFX SX-1B9C muffler offers a unique exhaust sound and improved performance for 1977-1978 GMC K35 trucks with a 5.7L V8 engine. However, it comes with the cons of a loud exhaust and higher cost. Ultimately, the decision to purchase this muffler depends on individual preferences and priorities. If you value a loud exhaust and improved performance, then this muffler may be a worthwhile investment. However, if you prefer a quieter ride or are concerned about the cost and emissions, then it may be best to consider other options.

part # sx1b9c prices

• $72.06-$83.46

specifications mufflermooch:

• for models: C170, Mv
• for makes: Gmc
• for years: 1977-1978
• brand: Walker Exhaust Soundfx
• type: Exhaust Muffler
• placement on vehicle: Exhaust Mufflers
• manufacturer part number: SX-1B9C
• item length: 27.500
• manufacturer warranty: Lifetime
• interchange part number: C170 50-23
• compatible model: K35
• compatible year: 1978 1977
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Walker Exhaust Muffler

shipping mufflermooch:

• cost: $0.00
• class: Standard, Expedited
• service: Standard, Expedited
• type: Fixed
• transit: 5-7 Days

offer mufflermooch:

• quantity: 3
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: November 8, 2025

payments mufflermooch:

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

returns mufflermooch:

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

general mufflermooch:

• Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators
• condition: New

seller mufflermooch:

• rating: 99.1%
• # reviews: 590493

Walker Exhaust Soundfx SX-1B9C Is Similar To:

• Walker 17679 2004 Wrangler Tj Muffler (29.1% similar) $99.00–$130.10. (August 28th, 2024)
• Walker 17579 Exhaust Muffler (40.7% similar) $126.60–$243.26. (September 1st, 2024)
• Walker 17665 Exhaust Muffler (40.7% similar) $129.95. (October 8th, 2024)
• Walker 18937 Unused Exhaust Muffler-soundfx Direct Fit Fits 95-99 Toyota Tercel (34% similar) $92.99–$396.18. (November 21st, 2024)
• Walker Exhaust Quiet-flow C140 50-28 Quiet-flow Muffler For 2008-2010 Ford F-250 Super Duty 5.4l Vq (45.8% similar) $213.78. (December 9th, 2024)
• Walker 18251 Exhaust Muffler-soundfx Direct Fit (37.8% similar) $57.30–$101.99. (December 9th, 2024)
• Walker 18128 Exhaust Muffler-soundfx Universal (44.4% similar) $80.55–$99.99. (December 9th, 2024)
• Walker Exhaust 17562 Dynomax Ultra Flo Welded Mufflers (49.3% similar) $49.97–$165.95. (December 9th, 2024)
• Walker 22104 Exhaust Muffler-quiet-flow Fits 14-17 Chevrolet Impala (39.5% similar) $315.21–$484.99. (December 10th, 2024)
• Walker Exhaust 22080 P N (34.6% similar) $135.76–$168.99. (December 10th, 2024)
• Walker 18180 For Chevy R2500 Suburban 89-90 Exhaust Muffler Soundfx Steel Oval Direct-fit (33.1% similar) $69.95–$96.97. (December 11th, 2024)