Brand-new high-flow reproduction 2-1/2" inlet catalytic converter for 1986-1987 Buick Grand National and Turbo Regal replaces GM# 25103338.
This performance catalytic converter is made in USA exclusively for Highway Stars and is not available anywhere else.
Using the newest technology available, we were able to produce a high-flow, performance catalytic converter that is about five pounds lighter than a GM factory original unit.
It is an exact fit replacement for a GM factory original unit, and hooks up just like the original/discontinued GM cat #25103338.
With our high-flow cat, there's no need to drive around in a stink-bomb anymore.
Best of all, what you see is exactly what you get.
The catalytic converter you receive:
- This Highway Stars product is an exact fit replacement part for stock systems
- It is NOT a universal aftermarket like what is found at other sites
- Highway Stars product will NOT DIFFER (even slightly) from our picture
- Like a factory original unit, Highway Stars Cat does NOT have an air tube
Comes with a complete hardware kit (pictured) for stock inlet and outlet connections.
Another Highway Stars exclusive "keep-em-original" restoration part!