1. Manifolds & Headers Offered
  2. sku: 10310003661725793
  3. AP EXHAUST 774035

AP EXHAUST TECHNOLOGIES 774035 Manifold Integrated Catalytic Converter

fits model: Highlander. make: Toyota. year: 2004–2007.

774035 Ap Exhaust Technologies For Toyota Highlander 04-07 Manifold With Integrated Catalytic Converter

( Brand: Ap Exhaust Technologies ), ( Part Type: Manifold Converter ), ( Manufacturer Part Number: 774035 ), ( Product Type: Exhaust ), ( Fitment Type: Direct Replacement ), ( Compatible Make S : Toyota, Lexus ), ( Compatible Model S : Highlander, Sienna, Rx330 ), ( Product Subtype: Exhaust Headers ), ( Product Details: Exhaust Manifold With Integrated Catalytic Converter ), ( Material: Stainless Steel ), ( Department: Replacement )

Review AP EXHAUST TECHNOLOGIES Toyota Manifold Integrated Catalytic Converter fits HIGHLANDER 2004–2007

Introducing the AP Exhaust 774035 Integrated Catalytic Converter, a high-performance upgrade for your Toyota Highlander (2004-2007) that delivers improved exhaust flow and enhanced power. This catalytic converter is expertly crafted to replace the original part, ensuring a seamless fit and reliable operation.

The AP Exhaust 774035 is engineered with a unique design that integrates the catalytic converter into the exhaust manifold. This design not only reduces the number of joints in the exhaust system but also helps to minimize exhaust gas turbulence, leading to better scavenging and increased power output.

Constructed from premium materials, this catalytic converter boasts a robust and durable build. Its advanced design features a high-flow monolithic substrate that ensures optimal catalytic efficiency while also reducing backpressure. The substrate is coated with a precious metal catalyst layer that ensures efficient conversion of harmful exhaust gases into less toxic emissions.

The AP Exhaust 774035 Integrated Catalytic Converter is also designed with easy installation in mind. It comes with all necessary hardware, including new gaskets, making the replacement process straightforward and hassle-free. The converter is also CARB-compliant, ensuring that it meets the most stringent emissions standards.

In summary, the AP Exhaust 774035 Integrated Catalytic Converter is a top-tier upgrade for your Toyota Highlander (2004-2007) that delivers improved exhaust flow, enhanced power, and reliable operation. Its advanced design, high-quality materials, and easy installation make it an excellent choice for those seeking to optimize their vehicle's performance while maintaining emissions compliance.

Pros and Cons of Buying a Manifold Integrated Catalytic Converter (AP Exhaust 774035) for a 2004-2007 Toyota Highlander

1. Pros:

a. Improved Performance: Replacing the stock catalytic converter with a high-performance aftermarket one can result in better gas mileage and increased engine power.

b. Durability: Aftermarket catalytic converters are often made of stronger materials, which can help prevent damage from frequent driving or harsh conditions.

c. Cost-Effective: In some cases, replacing just the catalytic converter may be more cost-effective than replacing the entire exhaust system.

d. Enhanced Exhaust Sound: A high-performance catalytic converter can produce a more pleasing exhaust note, which may be desired by some enthusiasts.

2. Cons:

a. Higher Initial Cost: Aftermarket catalytic converters, especially high-performance ones, tend to be more expensive than OEM parts.

b. Potential for Increased Emissions: Some aftermarket catalytic converters may not meet emissions standards, which could result in fines or other penalties in certain areas.

c. Risk of Voiding Warranty: Installing aftermarket parts, including catalytic converters, may void the vehicle's factory warranty.

d. Potential for Check Engine Light: Installing a high-performance catalytic converter may trigger the check engine light due to differences in exhaust flow or composition.

Conclusion:

When considering purchasing a manifold integrated catalytic converter (AP Exhaust 774035) for a 2004-2007 Toyota Highlander, it's essential to weigh the potential benefits, such as improved performance, durability, cost-effectiveness, and enhanced exhaust sound, against the potential drawbacks, including higher initial cost, potential for increased emissions, risk of voiding the warranty, and potential for triggering the check engine light.

If the desire for improved performance and a more pleasing exhaust note outweighs the potential downsides, then an aftermarket catalytic converter may be the right choice. However, if emissions standards are a concern or the warranty is a priority, it may be best to stick with an OEM part. Ultimately, the decision comes down to personal preference and priorities.

part # 774035 prices

  • $1373.41-$1650.99

specifications maniheader:

  • for models: Highlander
  • for makes: Toyota
  • for years: 2004-2007
  • brand: Ap Exhaust Technologies
  • part type: Manifold Converter
  • manufacturer part number: 774035
  • product type: Exhaust
  • fitment type: Direct Replacement
  • compatible make s : Toyota, Lexus
  • compatible model s : Highlander, Sienna, Rx330
  • product subtype: Exhaust Headers
  • product details: Exhaust Manifold With Integrated Catalytic Converter
  • material: Stainless Steel
  • department: Replacement

shipping maniheader:

  • transit: 3-6 Days
  • carrier: FedEx
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $30.42
  • type: Calculated

offer maniheader:

  • started: January 24, 2026
  • sold: 0
  • options: Ship-to-home
  • quantity: 5
  • availability: In Stock

payments maniheader:

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

general maniheader:

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

seller maniheader:

  • rating: 98.9%
  • # reviews: 146437

returns maniheader:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for models: highlander, for makes: toyota, for years: 2004-2007, part type: manifold converter, product type: exhaust, fitment type: direct replacement, compatible make s: toyota, lexus, compatible model s: highlander, sienna, rx330, product subtype: exhaust headers, product details: exhaust manifold with integrated catalytic converter, department: replacement,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, material: stainless steel, sku: 10310003661725793,

Ap Exhaust Technologies 774035 Is Similar To:

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3 offers $1373.41–$1650.99 USD
  • Offer #1: $1373.41 price + free delivery = $1373.41* total. AP Exhaust Catalytic Converter with Integrated Exhaust Manifold.FREE SHIPPING
  • Offer #2: $1539.49 price + free delivery = $1539.49* total.FREE SHIPPING
  • Offer #3: $1650.99 price + free delivery = $1650.99* total.FREE SHIPPING