PINKS

Hey guys

Ive got a turbo d16, currently running open downpipe, emissions time is coming up and I need to go so im making an exhaust from scratch.

Currently I have pretty much all of my exhaust made of 2" pipe with some flew sections and a cherry bomb turbo oem style muffler and a cherry bomb resonator (both were close to free)

Now I need a catalytic conveter

Im going to have a 3" electric cutout exhaust and that will be closed at the time of the test but I need a cat, I was planning on getting an oem, but I thought that might be a huge power loss when driving around with the cutout closed.

Should I go with an oem catco replacment or should i go ahead and can a cheap high flow one off of ebay?

Will a used cat work ok?

Thanks for any info

PINKS

nfn15037

They should pass the sniffer just fine with proper tuning. Spend the $200 and buy a new cat though, they don't last nearly as long as OEM.

adseguy

Hell, you can pass without a CAT as long as the car is tuned.

urbansi

Yeah thats only true if your OBD-1

twkdCD595

I passed without a cat., just get a good tune.

Does not hurt to think up a good excuse why they should not run it on the rollers either... like nice wheels with short tires, car too low to the ground, monster clutch that is really hard to drive, story about how they screwed up your car last time, etc.

nfn15037

It depends on the state. In MA, we have California emission sstandards. Nobody will pass without a cat, period. Even AWD cars that don't go on the dyno and only require a 2 speed idle test can't pass with no cat.

gsr dood

no cat. dc headers and a straight pipe. pass NYS emmisions with flyin colors

PINKS

Do they actually let you not go on the rollers if your car is lowerred and you have a 6 puck clutch and everything?

redzcstandardhatch

yes.

its not that hard, you just need to have an excellent tune, and with a high flow cat, you'll pass.

PINKS

expletive high flow, Im gonna grab a cheap oem one, seen them on ebay for about 50 shipped

twkdCD595

Did not know they were so strict about emissions there.

You could just hollow out a stock cat or cheapy ebay one... as long as it passes the visual inspection cause you appear to have one on the car.

PINKS

I did hollow out my old one and Im kinda pissed that I did, waste of money