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2003 Lexus GS300 Catalytic Converter

Review Fitment Notes

We have 22 catalytic converter products to choose from for your 2003 Lexus GS300, and our low-cost options range from $105.98 up to $1,411.58

Showing 6 of 22 Results
Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter - Front 7538-05456586 Click to Enlarge
5 Stars
Eastern Catalytic 40486
Exhaust Manifold with Integrated Catalytic Converter
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Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter - Front
Part Number: 7538-05456586
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Manifold Converter Assembly
Position: Front
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$845.43
(3) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Eastern Catalytic Catalytic Converter - Rear 7538-05171283 Click to Enlarge
4.8 Stars
Eastern Catalytic 83165
Catalytic Converter
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Eastern Catalytic Catalytic Converter - Rear
Part Number: 7538-05171283
Brand: Eastern Catalytic
Notes: UNIVERSAL -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Semi-Universal Converter - ECO II
Position: Rear
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$153.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Eastern Catalytic Catalytic Converter - Rear 7538-05171284 Click to Enlarge
4.9 Stars
Eastern Catalytic 83166
Catalytic Converter
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Eastern Catalytic Catalytic Converter - Rear
Part Number: 7538-05171284
Brand: Eastern Catalytic
Notes: UNIVERSAL -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Semi-Universal Converter - ECO II
Position: Rear
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$153.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter - Front 7538-05456703 Click to Enlarge
Website Reviews
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Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter - Front
Part Number: 7538-05456703
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Manifold Unit; Engine Family: 3TYXV03.0FFF; Legal Note: In Compliance with the state of CA & NY (vehicles with CA Emissions) Emissions Requirements; CARB FTB STD: LEV1 LEV; Executive Order # D-665-23
  • CARB Certified Direct Fit Manifold Converter
Position: Front
Condition: New
Type: CARB Direct-Fit Manifold
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$926.43
Out of Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Eastern Catalytic Catalytic Converter - Rear 7538-05456763 Click to Enlarge
Website Reviews
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Eastern Catalytic Catalytic Converter - Rear
Part Number: 7538-05456763
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Rear Unit; 45" Overall Length; Engine Family: 3TYXV03.0FFF; Legal Note: In Compliance with the state of CA & NY (vehicles with CA Emissions) Emissions Requirements; CARB FTB STD: LEV1 LEV; Executive Order # D-665-23
  • CARB Certified Direct Fit Converter
Position: Rear
Condition: New
Type: CARB Direct-Fit Undercar
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$530.43
Out of Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Eastern Catalytic Catalytic Converter - Rear 7538-05082854 Click to Enlarge
Website Reviews
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Eastern Catalytic Catalytic Converter - Rear
Part Number: 7538-05082854
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; 45" Overall Length; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Position: Rear
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$436.43
Out of Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl

Catalytic Converter Reviews - 2003 Lexus GS300

Bosal | 096-1640

The CAT works well, and for the price is difficult to beat.

However, the install was not a direct swap as the manifold flange that bolts to the head was too tight of a fit but was easily modified to work. Additionally, the bracket that comes off of the bottom of the transmission has to be cut or drilled out to make it work like it did with the OEM CATS.

And as far as aftermarket low cost CATs go, this was one of the better ones.

February 3rd, 2014 | Posted by Rocket