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If the engine is running optimum, even with a TP, rarely will you get any stink that is worth noting. But as mentioned, most ap1/F20 dont run in that state, so the TP compounds this, making unburnt fuel and burnt oil to even blow by gasses more apparent. I run a TP on my F22, and I never smell anything from the cabin. The only time I smell anything at all is when I first start the car in the morning when the car is running in a rich state at high idle and in my garage where the air is confined. But even then it just smells like regular old exhaust, with maybe a hint of unburnt fuel. When the car is warmed up, I can stick my face down at the tail pipe and there is virtually no smell.
Last edited by s2000Junky; May 28, 2017 at 12:52 AM.
Alright, well you guys nailed it. It's got a test pipe. I was really surprised to find this on a stock car. And what's the deal with this blue wire? does that look stock?
Does anyone regonize which pipe this is? I guess there would be some power gains also right?
I guess this is kinda good, kinda bad. One one hand I was worried there could be some other bigger problems causing the smell, but now I don't know if i'll be able to pass inspection / emissions and register the car. On the other hand, I'm sure this frees up a few HP and maybe makes the exhaust a little louder as well. Dunno what to do now.
Where do you live? You can usually get a used cat or an aftermarket California approved cat if emissions is an issue. The blue cable is for the secondary O2 sensor, which looks like it has a hell of a spacer, which is there to prevent the CEL from coming on.
I am in Maryland.
When I go for emissions they do an OBDII emissions test, however they sometimes look under the car with the mirror. Thing is, half the time they look at my mufflers and that's it. I don't think they know what anything is.
I'm looking online and there are massive ranges. Some used ones for $100ish - new ones for $300-350. There is a berks HFC for $200ish. I dunno what to do.
Ok, so a test pupe doesn't really uncork any power with this car. Unless, if paired with a flashpro tune, you can lower vtec rpm which can add a lot of power under the curve. Though you can do the same with a hfc. You are hampered from this using the stock cat.
You want to pair the size of cat with size of exhaust. If you have a 70 mm exhaust, get a 70 mm cat. If you have a 60-something exhaust, get a 63 mm cat. Note, stock exhaust is around 63 mm. Going bigger cat with smaller exhaust will actually lose power.
Your best bet is either a stock used cat, or a berk 63 mm hfc. If you have any future plans for more hp, then get the hfc berk. Later you can add Flashpro to actually take advantage of the hfc. This is the best bang for buck and only real source of performance increase for this car short of FI or Nos.
I'm pretty sure Maryland needs a CARB certified cat, I think the only one that works is the Magnaflow, I'm probably missing something. Cunningham's law will sort it out.
