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View Full Version : is this really worth the possible ticket?


sandman101
05-23-2008, 07:02 AM
so ive just put a new 350 vortec in my silvy and now when im driving it im getting horrible mileage. i know the 33's dont help but i think i should get better than 10 miles 2 the gallon. i took it in they said the cats are plugged so i was thinkin about runnin offroad y-pipes but was wondering if it is worht it for milage etc.. i will tune out the rear o2s if i do this but was wondering if it would be better to just replace the cats instead.
ksukats57
05-23-2008, 10:05 AM
You will be better off just running cats, especially if michigan runs emmission testing. Your motor will run better as its designed to with them.
silverado82
05-23-2008, 10:53 AM
I like the offroad y pipe
burnoutcrazy350
05-23-2008, 11:32 AM
just gut the cats and run o2 simulaters in the rear ones
NEUMANNZZ
05-23-2008, 11:42 AM
if your environmental friendly get new cats, if not get rid of them.
daved931
05-23-2008, 12:29 PM
Michigan will let you drive just about anything on the road. I would hollow out the cats and then get the O2 simulators.
Chevyman247
05-23-2008, 01:08 PM
Hollow them beaches out!
2500ak
05-23-2008, 01:21 PM
clogged cats will destroy your engine fast, and with very little warning, hollow them out, depending on where you are you may still pass with a visual inspection.
dave89iroc
05-23-2008, 02:42 PM
no testing in michigan, nothing on the horizon either
PHATSPEED7X
05-23-2008, 04:46 PM
We don't have testing in MN, but I still put a high performance cat on my 91. It's acts as a "little muffler" on my truck.
BasicBlack
05-23-2008, 04:59 PM
Like dave89iroc said, no testing in Michigan. If you can do the cat. delete option yourself, I would do it. You will have to pay an exhaust shop under the table to do it. They get a $10,000 (or $5000?) fine if caught.
dave89iroc
05-23-2008, 05:39 PM
Like dave89iroc said, no testing in Michigan. If you can do the cat. delete option yourself, I would do it. You will have to pay an exhaust shop under the table to do it. They get a $10,000 (or $5000?) fine if caught.
$5k per offense IIRC
2500ak
05-23-2008, 11:18 PM
The shop? Or anyone caught without a cat?
Pauly
05-24-2008, 06:46 AM
No cats equals smelly truck.

peace
PAuly
dave89iroc
05-24-2008, 07:50 AM
The shop? Or anyone caught without a cat?
the shop

I have never heard of an owner being caught in michigan, local and state cops never look


none of my built trucks have cats