1999 Oldsmobile LSS Catalytic Converters
Save up to 40% on original replacement 1999 Oldsmobile LSS Catalytic Converters. Navigate our online catalogue to find Catalytic Converters and other parts designed specifically to fit a 1999 Oldsmobile LSS.


Catalytic Converter
$478.64
$298.49
10+ In Stock
Ships: Friday Sep. 26th
Pick-Up: Ready in 1 Hour Friday Sep. 26th
Pick-Up: Ready in 1 Hour Friday Sep. 26th
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$444.23
$247.79
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
CARB Executive Order D-182-43 Engine Family Number (EFN) XGMXV03.8052 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-43 Engine Family Number (EFN) XGMXV03.8052 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$519.14
$281.85
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
CARB Executive Order D-182-57 Engine Family Number (EFN) XGMXV03.8048 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-57 Engine Family Number (EFN) XGMXV03.8048 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$519.14
$281.85
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
CARB Executive Order D-182-57 Engine Family Number (EFN) XGMXV03.8049 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-57 Engine Family Number (EFN) XGMXV03.8049 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation