RIXX93GT said:Yes it will pass the emissions test, mine did, just not a visual if your state does it. Luckily they are doing away with our testing next year.
I just threw a good catted h-pipe on and ran thru the test no problems.
18mustangs said:If you run the cats all the time you'll need the smog pump running to the h-pipe or your cats will clog and performance will fall off drastically as the smog pump sends air to the cats (the catalyst) to break down the unburned HCs. Without the catalyst (the air) being introduced into the cats it will clog the cats.
Tim
Some later model catalytic converers are made to be used without the extra air provided by the smog pump.88GT17MA said:explain how hundreds of cars run catted exhaust with no smog equipment......I'm not saying your wrong, just asking since you seem to know what your talking about.
jrichker said:Some later model catalytic converers are made to be used without the extra air provided by the smog pump.
The cats on fox bodied Mustangs were the first generation devices and needed the extra air from the smog pump to do the job.
FastA$$89Vert said:I dont have one and I passed.......they dont look for it visually even though they are supposed to (NJ)
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