1. Manifolds & Headers Offered
  2. sku: 8968344663159641
  3. PONTIAC 478022

PONTIAC 478022 Exhaust Extensions Gm Extensions.

fits model: Gto. make: Pontiac. year: 1970–1971.

478022 Pontiac 1970 1971 Gto Exhaust Extensions. Gm #

( Part Type: Exhaust ), ( Manufacturer Part Number: 478022 ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review PONTIAC Exhaust Extensions. Gm fits GTO 1970–1971

Pontiac GTO Exhaust Extensions (1970-1971) - GM Part Number: 478022

Description:

The Pontiac GTO, an iconic muscle car from the 1960s and 1970s, is renowned for its powerful engines and distinctive exhaust notes. These exhaust extensions, manufactured by General Motors and featuring the part number 478022, are specifically designed for the 1970 and 1971 Pontiac GTO models.

These exhaust extensions are essential components of the vehicle's exhaust system. They are meticulously engineered to provide a secure and efficient connection between the catalytic converter and the muffler. The extensions are made of premium materials that ensure durability and resistance to corrosion, ensuring reliable performance and longevity.

The 1970-1971 Pontiac GTO exhaust extensions, part number 478022, are engineered to meet the exacting standards of General Motors. They are precision-manufactured to ensure a perfect fit, ensuring a seamless integration into your vehicle's exhaust system. The extensions are designed to work seamlessly with the rest of the exhaust components, optimizing exhaust flow and reducing back pressure, which in turn enhances engine performance and fuel efficiency.

Installation of these exhaust extensions is a straightforward process. They are designed to be easy to install, requiring no modification to the vehicle. The extensions come with all necessary hardware for installation, making it a convenient and hassle-free upgrade for your Pontiac GTO.

By upgrading your Pontiac GTO with these genuine GM exhaust extensions, you not only ensure optimal performance and longevity, but you also enhance the overall driving experience. The exhaust extensions contribute to a more powerful exhaust note, adding to the muscle car's iconic sound and character.

In conclusion, the Pontiac GTO exhaust extensions (1970-1971) with GM part number 478022 are essential components of the vehicle's exhaust system. These extensions are engineered to provide a secure and efficient connection between the catalytic converter and the muffler, contributing to optimal performance, longevity, and a more powerful exhaust note. They are meticulously crafted to meet the exacting standards of General Motors, ensuring a perfect fit and seamless integration into your vehicle's exhaust system. Upgrade your Pontiac GTO with these genuine GM exhaust extensions and experience the difference for yourself.

Exhaust Extension for 1970-1971 Pontiac GTO (GM Part Number 478022): Pros, Cons, and Conclusion

The Pontiac GTO 1970-1971 is a classic muscle car, and upgrading its exhaust system is a popular modification. One such upgrade involves installing exhaust extensions. In this article, we will discuss the pros and cons of buying a GM part number 478022 exhaust extensions for your 1970-1971 Pontiac GTO.

Pros:

1. Enhanced Performance: Exhaust extensions can help improve the performance of your GTO by reducing backpressure and allowing for better exhaust flow. This can lead to increased horsepower and torque.

2. Better Sound: The exhaust extensions can also provide a better exhaust note, making your GTO sound more aggressive and powerful.

3. Fit and Finish: GM's OEM exhaust extensions are designed to fit perfectly and match the factory exhaust system. This can ensure a seamless look and a proper fit.

4. Durability: OEM parts are known for their durability and reliability. The exhaust extensions are no exception, and they can last for a long time.

Cons:

1. Cost: OEM exhaust extensions can be quite expensive compared to aftermarket alternatives. This may deter some buyers who are on a budget.

2. Weight: The exhaust extensions add weight to the exhaust system, which can affect the handling and fuel efficiency of the car.

3. Complex Installation: Installing the exhaust extensions may require some expertise and specialized tools. This can add to the cost and complexity of the project.

Conclusion:

The Pontiac GTO exhaust extensions (GM part number 478022) offer several benefits, such as improved performance, better sound, and a perfect fit. However, they come with a higher price tag and may require a complex installation. Ultimately, the decision to buy these exhaust extensions depends on your budget, technical expertise, and desired outcome.

If you are a serious enthusiast looking for optimal performance and a factory-perfect look, then the OEM exhaust extensions may be the best choice for you. However, if you are on a budget or prefer a more DIY approach, aftermarket alternatives may be worth considering.

Recommendation:

If you have the budget and desire for optimal performance and a factory-perfect look, then the GM part number 478022 exhaust extensions for your 1970-1971 Pontiac GTO are a recommended upgrade. However, if you are on a budget or prefer a more DIY approach, consider researching aftermarket alternatives to find a cost-effective solution that meets your performance and aesthetic goals.

part # 478022 price

  • $585.00

specifications maniheader:

  • for models: Gto
  • for makes: Pontiac
  • for years: 1970-1971
  • part type: Exhaust
  • manufacturer part number: 478022
  • vintage part: Yes
  • universal fitment: No

general maniheader:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
  • condition: New other see details

seller maniheader:

  • rating: 100.0%
  • # reviews: 2082

shipping maniheader:

  • type: Calculated
  • cost: $0.00
  • transit: 4-8 Days
  • carrier: FedEx
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery

offer maniheader:

  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • quantity: 2
  • best offers: True
  • started: November 9, 2025

returns maniheader:

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

payments maniheader:

  • credit card: Discover
  • cash
  • other
  • wallet: Paypal
for models: gto, for makes: pontiac, for years: 1970-1971, part type: exhaust, vintage part: yes, universal fitment: no,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, sku: 8968344663159641,

Pontiac 478022 Is Similar To:

maniheader logo
1 offer $585.00 USD
  • Offer #1: $585.00 price + $35.00 delivery = $620.00* total. Excellent piece. 1971 1972 GTO Pontiac Lemans Judge pair of original exhaust extensions.+$35.00 shipping