2007 catalytic converter issues?
i have a 2007 FJ with about 135K miles, alternator recently quit, and after replacement, engine light came on. Dealership and local repair shop both say both of my catalytic converters are failing, necessitating a $2,800-$3,000 fix. Parts can only come from Toyota, and are $1,000 each. The internets seems to indicate that I can use aftermarket replacements available for around $300 each. Any problems with this? The aftermarket stuff looks like bolt on, but when i got under the FJ it looked to be all welded.
Any advice would be appreciated. TIA.