My cat has a hole in it, and I've wanted to replace it anyway as it's a hack up of an aftermarket cat into an eta exhaust using 2" pipe. I'm not going to be modding the car so a full custom exhaust would be a waste, I just want an exhaust with "i" stock performance (or mildly better) and sound. Stock exhausts from part outs or upgrades seem to be rare in the classifieds, unfortunately.
You used to be able to get the D.E.C. cat but it seems to be out of production and Pelican (ECS) is selling their remaining stock for exorbitant prices. There's the Magnaflow, which apparently is only a direct fit for auto cars and at least one member got one that was bent improperly, not to mention the price has tripled in the last few years. RockAuto sells a Davico cat with the stock "i" outlets, it doesn't have an O2 bung, it collects into a single pipe of unknown diameter, and there's all of one thread about it.
So far the best I've come up with is the Ireland shorty header and some universal cat, and then get a competent shop to weld up the cat and add outlets that will allow mounting a stock-fit catback like the Ireland one. Only problem is, those headers never seem to be in stock when I look. Alternatively I could have someone hack a universal cat on to the eta pipe, which does appear to be 2.25" above where it was chopped - not great, not terrible from what I've read.
What else is out there? Am I missing anything?
EDIT: Found one more, AB Catalytic in Canada makes a full direct fit. Various sellers on ebay selling either as the AB Catalytic brand or their own brand. I can find no one online with direct experience with these on the E30 though so if anyone does, please post up.
And another: OEM Industries, although the description says Y pipe despite the model clearly running dual pipes to the cat? Again, various ebay sellers.
You used to be able to get the D.E.C. cat but it seems to be out of production and Pelican (ECS) is selling their remaining stock for exorbitant prices. There's the Magnaflow, which apparently is only a direct fit for auto cars and at least one member got one that was bent improperly, not to mention the price has tripled in the last few years. RockAuto sells a Davico cat with the stock "i" outlets, it doesn't have an O2 bung, it collects into a single pipe of unknown diameter, and there's all of one thread about it.
So far the best I've come up with is the Ireland shorty header and some universal cat, and then get a competent shop to weld up the cat and add outlets that will allow mounting a stock-fit catback like the Ireland one. Only problem is, those headers never seem to be in stock when I look. Alternatively I could have someone hack a universal cat on to the eta pipe, which does appear to be 2.25" above where it was chopped - not great, not terrible from what I've read.
What else is out there? Am I missing anything?
EDIT: Found one more, AB Catalytic in Canada makes a full direct fit. Various sellers on ebay selling either as the AB Catalytic brand or their own brand. I can find no one online with direct experience with these on the E30 though so if anyone does, please post up.
And another: OEM Industries, although the description says Y pipe despite the model clearly running dual pipes to the cat? Again, various ebay sellers.
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