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GMC K25 Catalytic Converter

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GMC K25 Catalytic Converter, Eastern Standard Catalytic Converter - Traditional Converter, Semi-Universal

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$53.98 $63.70 You Save $9.72 (15%)
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EASTERN - UNIVERSAL CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

Eastern's universal catalytic converters are durably designed and powered with NANO technology for highly efficient, long-lasting function. Since 1976, Eastern Catalytic has specialized in engineering world-class catalytic converters for the automotive aftermarket.
  • NANO technology delivers better converter efficiency
  • Brings optimum engine performance
  • Complete range of outlet and inlet diameters
  • Non-directional for ease of installation
Note:
  • 48-state legal - not for sale or use in California or New York; cannot be shipped to California or New York addresses.
  • Brand SKU#: Eastern 70318
  • Series: Eastern Standard
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 6 x 4.25 x 10 in., 14 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following GMC K25 Years

  • 1975-1978 | Base | 6 Cyl 4.1L
  • 1975-1978 | High Sierra | 6 Cyl 4.1L
  • 1975-1978 | Sierra Classic | 6 Cyl 4.1L
  • 1975-1978 | Sierra Grande | 6 Cyl 4.1L
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GMC K25 Catalytic Converter, Magnaflow 49-State Semi-Universal Catalytic Converter - Traditional Converter, Semi-Universal

$77.88 $100.78 You Save $22.90 (23%)
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  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

  • Brand SKU#: Magnaflow 94006
  • Series: Magnaflow 49-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 12 in. L x 6.5 in. W x 4 in. H, 16 in. overall length
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following GMC K25 Years

  • 1975-1977 | Base | 8 Cyl 5.7L
  • 1975-1977 | High Sierra | 8 Cyl 5.7L
  • 1975-1977 | Sierra Classic | 8 Cyl 5.7L
  • 1975-1977 | Sierra Grande | 8 Cyl 5.7L
  • 1975-1978 | Base | 6 Cyl 4.1L
  • 1975-1978 | High Sierra | 6 Cyl 4.1L
  • 1975-1978 | Sierra Classic | 6 Cyl 4.1L
  • 1975-1978 | Sierra Grande | 6 Cyl 4.1L
  • 1977 | Base | 8 Cyl 5.0L
  • 1977 | High Sierra | 8 Cyl 5.0L
  • 1977 | Sierra Classic | 8 Cyl 5.0L
  • 1977 | Sierra Grande | 8 Cyl 5.0L
  • 1978 | Base | 8 Cyl 5.7L
  • 1978 | High Sierra | 8 Cyl 5.7L
  • 1978 | Sierra Classic | 8 Cyl 5.7L
  • 1978 | Sierra Grande | 8 Cyl 5.7L
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GMC K25 Catalytic Converter, Catco Center Catalytic Converter - Traditional Converter, Direct Fit

$149.55 $291.64 You Save $142.09 (49%)
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Availability: In Stock
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CATCO - OE REPLACEMENT CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

CATCO's OE replacement catalytic converters are designed with a T-409 stainless steel shell and pipes to guarantee enduring performance.

Note:

  • 48-state legal - not for sale or use in California or New York; cannot be shipped to California or New York addresses.
  • Brand SKU#: Catco 9002
  • Location: Center
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 2-3 business days
  • Dimensions: 24.75 in. overall length
  • Warranty: 5-year or 50,000-mile Catco limited warranty
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Fits the following GMC K25 Years

  • 1975-1978 | Base | 8 Cyl 5.7L
  • 1975-1978 | Base | 8 Cyl 6.6L
  • 1975-1978 | High Sierra | 8 Cyl 5.7L
  • 1975-1978 | High Sierra | 8 Cyl 6.6L
  • 1975-1978 | Sierra Classic | 8 Cyl 5.7L
  • 1975-1978 | Sierra Classic | 8 Cyl 6.6L
  • 1975-1978 | Sierra Grande | 8 Cyl 5.7L
  • 1975-1978 | Sierra Grande | 8 Cyl 6.6L
  • 1975-1978 | Base | 6 Cyl 4.1L
  • 1975-1978 | High Sierra | 6 Cyl 4.1L
  • 1975-1978 | Sierra Classic | 6 Cyl 4.1L
  • 1975-1978 | Sierra Grande | 6 Cyl 4.1L
  • 1976-1978 | Base | 8 Cyl 7.4L
  • 1976-1978 | High Sierra | 8 Cyl 7.4L
  • 1976-1978 | Sierra Classic | 8 Cyl 7.4L
  • 1976-1978 | Sierra Grande | 8 Cyl 7.4L
  • 1977-1978 | Base | 8 Cyl 5.0L
  • 1977-1978 | High Sierra | 8 Cyl 5.0L
  • 1977-1978 | Sierra Classic | 8 Cyl 5.0L
  • 1977-1978 | Sierra Grande | 8 Cyl 5.0L
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GMC K25 Catalytic Converter, Walker CalCat Center Catalytic Converter - Traditional Converter, Semi-Universal

$134.22 $310.42 You Save $176.20 (57%)
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WALKER - OE REPLACEMENT CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

Walker's OE replacement catalytic converters are rigorously engineered to deliver a perfect fit and optimal performance. Established in 1908, Walker is renowned in the automotive aftermarket for manufacturing a full line of exhaust system parts.

  • Higher loaded substrate
  • Engineered with premium stainless steel
  • Simply bolts on
  • Features thick, OE-quality hangers, flanges and brackets

Notes:

  • Non-CARB compliant/48-state legal - not for sale or use in New York or California; cannot be shipped to New York or California addresses.
  • Brand SKU#: Walker 80906
  • Location: Center
  • Series: Walker CalCat
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Walker limited warranty
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Fits the following GMC K25 Years

  • 1976 | Base | 6 Cyl 4.1L
  • 1976 | High Sierra | 6 Cyl 4.1L
  • 1976 | Sierra Classic | 6 Cyl 4.1L
  • 1976 | Sierra Grande | 6 Cyl 4.1L
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GMC K25 Catalytic Converter, Flowmaster 49-State Legal Catalytic Converter - Traditional Converter, Direct Fit

$124.56 $162.82 You Save $38.26 (23%)
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FLOWMASTER – DIRECT FIT 48-STATE LEGAL* CATALYTIC CONVERTERS

Flowmaster’s Direct Fit catalytic converter is dyno-proven to dramatically increase horsepower and reduce emissions better than your stock catalytic converter. It’s legal in 48 states and passes the federal EPA emissions standards – one of those ‘too good to be true’ must-have aftermarket products. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Street legal in 48-states, complies with federal EPA emissions standards
  • 50,000-mile/5-year casing warranty and 25,000-mile emissions warranty
  • Proven to improve horsepower while reducing emissions at the same time
  • 100% welded stainless body means long-lasting durability
  • Direct fit by vehicle year, make and model
  • Quick and easy installation
  • Dyno-tested
  • Factory replacement part
  • Precious metals and oversized substrates mean fewer toxins leaving the tailpipes
  • Includes heat shield for added protection

NOTE* Not legal for use in California or New York
  • Brand SKU#: Flowmaster 2010040
  • Series: Flowmaster 49-State Legal
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Notes: 2.50 in. Inlet/Outlet
  • Warranty: 5-Year Or 50,000-Mile Flowmaster Warranty On Exterior Casings
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Fits the following GMC K25 Years

  • 1975-1978 | Base | 6 Cyl 4.8L
  • 1975-1978 | Base | 8 Cyl 5.7L
  • 1975-1978 | Base | 8 Cyl 6.6L
  • 1975-1978 | High Sierra | 6 Cyl 4.8L
  • 1975-1978 | High Sierra | 8 Cyl 5.7L
  • 1975-1978 | High Sierra | 8 Cyl 6.6L
  • 1975-1978 | Sierra Classic | 6 Cyl 4.8L
  • 1975-1978 | Sierra Classic | 8 Cyl 5.7L
  • 1975-1978 | Sierra Classic | 8 Cyl 6.6L
  • 1975-1978 | Sierra Grande | 6 Cyl 4.8L
  • 1975-1978 | Sierra Grande | 8 Cyl 5.7L
  • 1975-1978 | Sierra Grande | 8 Cyl 6.6L
  • 1975-1978 | Base | 6 Cyl 4.1L
  • 1975-1978 | High Sierra | 6 Cyl 4.1L
  • 1975-1978 | Sierra Classic | 6 Cyl 4.1L
  • 1975-1978 | Sierra Grande | 6 Cyl 4.1L
  • 1976-1978 | Base | 8 Cyl 7.4L
  • 1976-1978 | High Sierra | 8 Cyl 7.4L
  • 1976-1978 | Sierra Classic | 8 Cyl 7.4L
  • 1976-1978 | Sierra Grande | 8 Cyl 7.4L
  • 1977-1978 | Base | 8 Cyl 5.0L
  • 1977-1978 | High Sierra | 8 Cyl 5.0L
  • 1977-1978 | Sierra Classic | 8 Cyl 5.0L
  • 1977-1978 | Sierra Grande | 8 Cyl 5.0L
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GMC K25 Catalytic Converter, Bosal Center Catalytic Converter - Traditional Converter, Direct Fit

$127.43 $150.37 You Save $22.94 (15%)
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Availability: In Stock
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BOSAL - OE REPLACEMENT CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

Bosal's OE replacement catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. They are designed and built for life-long reliability.

Notes:

  • 48-state legal - not for sale or use in California or New York; cannot be shipped to California or New York addresses.
  • Brand SKU#: Bosal 079-5001
  • Location: Center
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 5-year or 25,000-mile Bosal limited warranty
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Fits the following GMC K25 Years

  • 1975-1978 | Base | 8 Cyl 5.7L
  • 1975-1978 | High Sierra | 8 Cyl 5.7L
  • 1975-1978 | Sierra Classic | 8 Cyl 5.7L
  • 1975-1978 | Sierra Grande | 8 Cyl 5.7L
  • 1975-1978 | Base | 6 Cyl 4.1L
  • 1975-1978 | High Sierra | 6 Cyl 4.1L
  • 1975-1978 | Sierra Classic | 6 Cyl 4.1L
  • 1975-1978 | Sierra Grande | 6 Cyl 4.1L
  • 1977-1978 | Base | 8 Cyl 5.0L
  • 1977-1978 | High Sierra | 8 Cyl 5.0L
  • 1977-1978 | Sierra Classic | 8 Cyl 5.0L
  • 1977-1978 | Sierra Grande | 8 Cyl 5.0L
  • 1978 | Base | 8 Cyl 7.4L
  • 1978 | High Sierra | 8 Cyl 7.4L
  • 1978 | Sierra Classic | 8 Cyl 7.4L
  • 1978 | Sierra Grande | 8 Cyl 7.4L
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