Hi,
I sold my '91 190E to my step son for his daughter to use. They drove it up to Sacramento, and after a couple of months, put it in the garage and didn't use it while she was away at school.
She is back home now and they fired up the 190 and had to do a smog check. It boiled down to a bad cat converter. Exit temps were not high enough. $650 dollars later (I paid) it passed with flying colors.
My question is: did 2 years of inactivity contribute to the failed cat?
Anziani

'87 300E
'95 E420

Doubt it, unless something crawled through the exhaust system and decided a cat-converter would be something tasty...

Aftermarket weld in converters will pass inspection, not set off a check engine light, and will not affect performance in any way.
http://cgi.ebay.com/ebaymotors/_Car-Truck-Parts-Accessories__2-5-Catalytic-Converter-High-Flow-Stainless-Steel_W0QQitemZ380035150220QQadnZCarQ20Q26Q20TruckQ20PartsQ20Q26Q20AccessoriesQQadiZ2865QQcmdZViewIt em?hash=item380035150220&

ebay number 380035150220

Just makes you sick doesnt it?
Anyways I dunno if that's the right size, but it's a mute point anyways.

~Nate

__________________
95 Honda Shadow ACE 1100.
1999 Plymouth Neon Expresso. 2.4 swap, 10.5 to 1 comp, big cams. Autocross time attack vehicle!
2012 Escape, 'hunter" (5 sp 4cyl)