Felpro Exhaust Gas Recirculation (EGR) Valve Gasket, 71234
In stock
$1.49
Listed as compatible with this vehicle by the retailer feed.
Check price2003 Lexus IS 300 Exhaust Systems
19 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Back to 2003 Lexus IS 300 parts
Walker Exhaust Pipe Flange Gasket, 31585
In stock
$6.39
Listed as compatible with this vehicle by the retailer feed.
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Felpro Exhaust Pipe Flange Gasket, 23591
In stock
$6.99
Listed as compatible with this vehicle by the retailer feed.
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BRExhaust Exhaust Pipe Flange Gasket, 256-214
In stock
$8.49
Listed as compatible with this vehicle by the retailer feed.
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Victor Reinz Exhaust Manifold Gasket, 71-10121-00
In stock
$12.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust Pipe Flange Gasket, 31533
In stock
$15.49
Listed as compatible with this vehicle by the retailer feed.
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BRExhaust Exhaust Pipe Flange Gasket, 256-1108
In stock
$19.99
Listed as compatible with this vehicle by the retailer feed.
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BRExhaust Exhaust Bolt, Nut, and Spring Kit, 254-9910
In stock
$31.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust Pipe Spout 3.625" Inlet (OD), 36421
In stock
$67.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Ultra EPA Universal Catalytic Converter - 2.5" Inlet (ID) 2.5" Outlet (ID), 93238
In stock
$185.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 457206
In stock
$381.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 457106
In stock
$387.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 24464
In stock
$453.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 441006
In stock
$548.99
Listed as compatible with this vehicle by the retailer feed.
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Dorman Manifold Converter - Not CARB Compliant - Not For Sale - NY - CA - ME, 674-642
In stock
$699.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 42.000 IN, 54666
In stock
$762.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 441021
In stock
$924.99
Listed as compatible with this vehicle by the retailer feed.
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Dorman Manifold Converter - CARB Compliant - For Legal Sale In NY - CA - ME, 673-642
In stock
$1,210.00
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Manifold Catalytic Converter, 49283
In stock
$1,760.00
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.