I have a few of the 3"inlet/out with 5" diameter bodies left in stock. But many other sizes are available:
4" diameter body with 2-1/2" inlet/outlet
4" diameter body with 3" inlet/outlet
5" diameter body with 3" inlet/outlet
5" diameter body with 3-1/2" inlet/outlet
5" diameter body with 4" inlet/outlet
These are 100 Cell Matrix core that are well able to stand up to Anti-Lag on an open class car, 1/2 the price of the FIA Homologated cats, but same quality, Made in the USA
$450 Shipped
4" diameter body with 2-1/2" inlet/outlet
4" diameter body with 3" inlet/outlet
5" diameter body with 3" inlet/outlet
5" diameter body with 3-1/2" inlet/outlet
5" diameter body with 4" inlet/outlet
These are 100 Cell Matrix core that are well able to stand up to Anti-Lag on an open class car, 1/2 the price of the FIA Homologated cats, but same quality, Made in the USA
$450 Shipped