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Lexus GS300 Exhaust Manifold Reviews
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Shop Lexus GS300 Replacement Exhaust Manifold

Search our online exhaust manifold catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Lexus GS300 Exhaust Manifold parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day.

We stock these Exhaust Manifold brands for the Lexus GS300: DECBosalDormanCatcoEastern CatalyticMagnaflowAP Exhaust

Exhaust Manifolds available for the following Lexus GS300 years: 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 06, 05, 04, 03, 02, 01, 00, 99, 98. This part is also sometimes called Lexus GS300 Exhaust Manifolds. We stock exhaust manifold parts for most Lexus models including IS300, GX470, ES300, RX330, IS250, GS350, ES330, RX300, LX470, RX350, LX450, ES350, RX400h, IS350, RX450h and SC300.

Select your GS300 year

Review Fitment Notes
Showing 17 of 163 Results
Left DEC Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 AWD 3.0L V6 - LX4634D Click to Enlarge
5 Stars
DEC LX4634D
Exhaust Manifold with Integrated Catalytic Converter
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Part Number: LX4634D
Brand: DEC
Notes: Vehicle Specific Loading -- E.P.A COMPLIANT
Position: Left
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile DEC Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$373.43
View Details
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
2006 Lexus GS300 AWD 3.0L V6
Front Right DEC Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 AWD 3.0L V6 - LX4634P Click to Enlarge
Website Reviews
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Part Number: LX4634P
Brand: DEC
Notes: Vehicle Specific Loading -- Exhaust Manifold WithConverter - Bank #1; E.P.A COMPLIANT
Position: Front Right
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile DEC Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$406.43
View Details
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
2006 Lexus GS300 AWD 3.0L V6
Bosal Exhaust Manifold with Integrated Catalytic Converter - for 2002 Lexus GS300 3.0L 6 Cyl - 096-1640 Click to Enlarge
4.5 Stars
Bosal 096-1640
Exhaust Manifold with Integrated Catalytic Converter
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Part Number: 096-1640
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Exhaust Manifold with Integrated Catalytic Converter
Condition: New
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Material: Stainless Steel
Type: Federal / EPA Compliant
Series: Premium Load
Type: Direct-Fit
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$875.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2002 Lexus GS300 3.0L 6 Cyl
Bosal Exhaust Manifold with Integrated Catalytic Converter - for 2001 Lexus GS300 3.0L 6 Cyl - 096-1640 Click to Enlarge
4.5 Stars
Bosal 096-1640
Exhaust Manifold with Integrated Catalytic Converter
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Part Number: 096-1640
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Exhaust Manifold with Integrated Catalytic Converter
Condition: New
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Material: Stainless Steel
Type: Federal / EPA Compliant
Series: Premium Load
Type: Direct-Fit
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$875.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2001 Lexus GS300 3.0L 6 Cyl
Dorman Exhaust Manifold with Integrated Catalytic Converter - for 2002 Lexus GS300 3.0L 6 Cyl - 673-642 Click to Enlarge
3 Stars
Dorman 673-642
Exhaust Manifold with Integrated Catalytic Converter
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Part Number: 673-642
Brand: Dorman
Notes: Catalytic Converter with Integrated Exhaust Manifold -- CARB Compliant: Yes
  • Designed to match the fit and performance of the original equipment
  • Includes gaskets and downpipe hardware to simplify installation
  • Made within strict tolerances for reliable longevity
Condition: New
Package Contents: Exhaust Manifold; 1 Input Gasket; 1 Output Flange
Grade Type: Regular
Color: Natural
Shipping Options: Ground
Lifetime Dorman Limited Warranty
*** Legal in California, Colorado, New York, and Maine ***
$966.43
View Details
This Part Fits:
Catalog: B
Vehicle Engine
2002 Lexus GS300 3.0L 6 Cyl
Front Right Catco Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 AWD 3.0L V6 - 1301 Click to Enlarge
5 Stars
Catco 1301
Exhaust Manifold with Integrated Catalytic Converter
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Part Number: 1301
Brand: Catco
Notes: Catalytic Converter with Integrated Exhaust Manifold -- Direct Fit; Firewall Side; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
Position: Front Right
Condition: New
Shipping Options: Ground
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$428.98
(9) In Stock
This Part Fits:
Catalog: P
Vehicle Sub Model Engine
2006 Lexus GS300 AWD 3.0L V6
Front Left Catco Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 AWD 3.0L V6 - 1300 Click to Enlarge
Website Reviews
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Part Number: 1300
Brand: Catco
Notes: Catalytic Converter with Integrated Exhaust Manifold -- Direct Fit; Radiator Side; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
Position: Front Left
Condition: New
Shipping Options: Ground
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$428.98
(16) In Stock
This Part Fits:
Catalog: P
Vehicle Sub Model Engine
2006 Lexus GS300 AWD 3.0L V6
Bosal Exhaust Manifold with Integrated Catalytic Converter - for 2003 Lexus GS300 3.0L 6 Cyl - 096-1640 Click to Enlarge
4.5 Stars
Bosal 096-1640
Exhaust Manifold with Integrated Catalytic Converter
Loading Reviews...
Part Number: 096-1640
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Exhaust Manifold with Integrated Catalytic Converter
Condition: New
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Material: Stainless Steel
Type: Federal / EPA Compliant
Series: Premium Load
Type: Direct-Fit
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$875.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Bosal Exhaust Manifold with Integrated Catalytic Converter - for 2000 Lexus GS300 3.0L 6 Cyl - 096-1640 Click to Enlarge
4.5 Stars
Bosal 096-1640
Exhaust Manifold with Integrated Catalytic Converter
Loading Reviews...
Part Number: 096-1640
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Exhaust Manifold with Integrated Catalytic Converter
Condition: New
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Material: Stainless Steel
Type: Federal / EPA Compliant
Series: Premium Load
Type: Direct-Fit
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$875.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Lexus GS300 3.0L 6 Cyl
Left Dorman Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 AWD 3.0L V6 - 674-640 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 674-640
Brand: Dorman
Notes: Catalytic Converter with Integrated Exhaust Manifold -- CARB Compliant: No
  • Designed to match the fit and performance of the original equipment
  • Includes gaskets and downpipe hardware to simplify installation
  • Made within strict tolerances for reliable longevity
Position: Left
Condition: New
Package Contents: Exhaust Manifold; 1 Input Gasket; 1 Output Flange
Color: Natural
Grade Type: Regular
Shipping Options: Ground
Lifetime Dorman Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$512.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
2006 Lexus GS300 AWD 3.0L V6
Bosal Exhaust Manifold with Integrated Catalytic Converter - for 2004 Lexus GS300 3.0L 6 Cyl - 096-1640 Click to Enlarge
4.5 Stars
Bosal 096-1640
Exhaust Manifold with Integrated Catalytic Converter
Loading Reviews...
Part Number: 096-1640
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Exhaust Manifold with Integrated Catalytic Converter
Condition: New
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Material: Stainless Steel
Type: Federal / EPA Compliant
Series: Premium Load
Type: Direct-Fit
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$875.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Lexus GS300 3.0L 6 Cyl
Right Dorman Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 AWD 3.0L V6 - 674-641 Click to Enlarge
5 Stars
Dorman 674-641
Exhaust Manifold with Integrated Catalytic Converter
Loading Reviews...
Part Number: 674-641
Brand: Dorman
Notes: Catalytic Converter with Integrated Exhaust Manifold -- CARB Compliant: No
  • Designed to match the fit and performance of the original equipment
  • Includes gaskets and downpipe hardware to simplify installation
  • Made within strict tolerances for reliable longevity
Position: Right
Condition: New
Package Contents: Exhaust Manifold; 1 Input Gasket; 1 Output Flange
Color: Natural
Grade Type: Regular
Shipping Options: Ground
Lifetime Dorman Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$473.43
(3) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
2006 Lexus GS300 AWD 3.0L V6
Dorman Exhaust Manifold with Integrated Catalytic Converter - for 2003 Lexus GS300 3.0L 6 Cyl - 674-642 Click to Enlarge
5 Stars
Dorman 674-642
Exhaust Manifold with Integrated Catalytic Converter
Loading Reviews...
Part Number: 674-642
Brand: Dorman
Notes: Catalytic Converter with Integrated Exhaust Manifold -- CARB Compliant: No
  • Designed to match the fit and performance of the original equipment
  • Includes gaskets and downpipe hardware to simplify installation
  • Made within strict tolerances for reliable longevity
Condition: New
Package Contents: Exhaust Manifold; 1 Input Gasket; 1 Output Flange
Color: Natural
Grade Type: Regular
Shipping Options: Ground
Lifetime Dorman Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$603.43
(2) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Lexus GS300 3.0L 6 Cyl
Front Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter - for 2001 Lexus GS300 3.0L 6 Cyl - 40486 Click to Enlarge
5 Stars
Eastern Catalytic 40486
Exhaust Manifold with Integrated Catalytic Converter
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Part Number: 40486
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}
$657.43
(7) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2001 Lexus GS300 3.0L 6 Cyl
Front Eastern Catalytic Exhaust Manifold with Integrated Catalytic Converter - for 1999 Lexus GS300 3.0L 6 Cyl - 40486 Click to Enlarge
5 Stars
Eastern Catalytic 40486
Exhaust Manifold with Integrated Catalytic Converter
Loading Reviews...
Part Number: 40486
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}
$657.43
(7) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1999 Lexus GS300 3.0L 6 Cyl
Front Left Magnaflow Exhaust Manifold with Integrated Catalytic Converter - for 2006 Lexus GS300 RWD 3.0L V6 - 452720 Click to Enlarge
Website Reviews
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Part Number: 452720
Brand: Magnaflow
Notes: Exhaust Manifold with Integrated Catalytic Converter CALIFORNIA CONVERTERS -- Certification Level : LEV1 ULEV; CARB Executive Order D-193-124; Engine Family Number 6TYXV03.0WMB
Position: Front Left
Condition: New
Body Material: Stainless Steel
Material: Stainless Steel
Series: California
Shipping Options: Free Ground Shipping
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$1,124.00
with FREE Shipping
(1) In Stock
This Part Fits:
Catalog: F
Vehicle Sub Model Engine
2006 Lexus GS300 RWD 3.0L V6
Front AP Exhaust Exhaust Manifold with Integrated Catalytic Converter - for 2005 Lexus GS300 3.0L 6 Cyl - 642792 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 642792
Brand: AP Exhaust
Notes: Catalytic Converter with Integrated Exhaust Manifold -- Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
Position: Front
Condition: New
Shipping Options: Ground
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$750.98
(1) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
2005 Lexus GS300 3.0L 6 Cyl

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Lexus GS300 Exhaust Manifold Reviews
5 of 5
Verified Customer
10/30/18 12:52 PM - USA

Value Priced,Better Than Original.

Both Catalytic Converters had to be replaced as a set, not just one. They have to be purchased both welded to the exhaust manifold. I shopped all over the universe, and once again,Parts Geek had the best price. - ED BERNI - El Dorado Hills, Ca.

- 2005 Lexus GS300 Exhaust Manifold with Integrated Catalytic Converter
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4/1/21 05:15 PM - USA

Partsgeek had these cheaper than anyone else. The shop that installed the cat said they fit perfectly without any modification. - Pras/The parts fit perfectly!

- 2006 Lexus GS300 Exhaust Manifold with Integrated Catalytic Converter