Question on downpipe

[nickydontcutem]

What up yall! I plan on buying an apexi n1 cat-back and I was also thinking about getting the apexi downpipe also, but it eliminates the cat. I live in california and I have to have the cat so I can pass emissions. So what downpipe could I get with the apexi cat-back that doesn't eliminate the cat? Any suggestions would be helpful.

[Nayr747]

Get a Megan dp off ebay for $120 shipped. It's solid polished ss. You can cut the end off and weld a flange on which would probably be another $15-$20.
http://cgi.ebay.com/ebaymotors/ws/eB...category=33630

If you want to spend a little more, RRE makes really nice ones for $230
http://www.roadraceengineering.com/eclexhaust.htm

[metalhedskater]

Wont both Dp you suggested mess with the o2 sensor causing the check engine light to come on?

[JoeWagon]

Get the downpipe and put your stock exhaust on for the tests every few years. Cats suck.

[Nayr747]

Originally Posted by metalhedskater

Wont both Dp you suggested mess with the o2 sensor causing the check engine light to come on?

Why would it do that? The 1st o2 sensor is before the dp and the second is in the cat or after it. And how are the dp's I suggested any different than other ones so they woud do what you said?

[bighauns]

Off topic!!

Nayr747...Tell me about the great canadian seal hunt petition link you have in your signature. Is it a joke?

[metalhedskater]

Originally Posted by Nayr747

Why would it do that? The 1st o2 sensor is before the dp and the second is in the cat or after it. And how are the dp's I suggested any different than other ones so they woud do what you said?

i just thought if you fuck with the DPs mess with the o2 sensors for some reason and your check ingine light comes on. But you have a point there is no o2 sensors on the Dp from the last time i looked when i installed my exhaust...so i dont know....its just something i hear before

[Gsx_hooptie]

"Long" DPs eliminate the cat, that'll screw with emissions. "Short" DPs, which are less common, allow for the addition of a cat or test pipe. Since they are more versitile, particularly for states like CA, I think they are the better way to go. With a short pipe and a cat, you'll pass emissions. Needless to say, without a cat, you won't pass.

Response to the OT: As for baby seals, we did a case study on this. Don't worry, I hate my college, too. In Canada, it's more cost effective to kill the seals manually than through bullet shots. Unfortunately, it's not very sensitive to animals. Notewothy, this became a big deal because it was taped and shown to audiences, and is considered the first incidence of film being used in a natural resouces setting to effect change. Film has been an effective means since then, obviously. It started with Edison, the lightbulb guy, but here singlehandedly brought an issue to the populace with baby seals. This is, ironically, closely historically tied with the first filming of an abortion, still available online to be seen. Both are nasty shit, fyi. Next topic...

Edit>> Still OT but kinda funny: the big organization against the killing of baby seals is the ifaw, found here: http://www.ifaw.org/ifaw/general/default.aspx?oid=21446. They link to a video of beating the hell out of seals here (not for the faint of heart): https://www.kintera.org/site/apps/kb...7CB91B7B605540. It requires a login, my apologies. In class we had to watch this, and the chicks cried

[nickydontcutem]

Thanks guys. Could I just get the cat-back and leave everything else as is and gain power? Or would I have to get the short downpipe and high flow cat also?

[Gsx_hooptie]

The catback won't easily bolt up to the stock cat. Your stock exhaust components aren't the same size as the stuff you're upgrading to, that's the whole idea of upgrading

Options:

Buy a catback and an adapter
Buy an n1 catback, since they come with provision to mount like stock
Buy a catback and long DP
Buy a catback and short DP with cat
Buy a catback and short DP with test pipe

Suggestion:

Buy a catback with a short DP and cat. When emissions are over, you can swap back to a test pipe, if you want.

[Nayr747]

Originally Posted by Nayr747

You can cut the end off and weld a flange on which would probably be another $15-$20.

Why did no one read this? This was supposed to mean turn it into a "short" dp. That's what I'm doing.

Originally Posted by bighauns

Off topic!!

Nayr747...Tell me about the great canadian seal hunt petition link you have in your signature. Is it a joke?

No it absolutely isn't a joke. The seals are being killed for their furs and also to a VERY small extent meat. 90% of them are less than 3 months old and they are very often skinned alive. I hope you guys think this is as horribly wrong as I do. I mean how the fuck could you skin this alive.


If these people can look themselves in the mirror in the morning then good for them. But I bet sooner or later they'll realize what horrible things they have done. If there is a hell these are the people that are going there. Not trying to be a downer but this shit really pisses me off.

[metalhedskater]

Originally Posted by Nayr747

Why did no one read this? This was supposed to mean turn it into a "short" dp. That's what I'm doing.



No it absolutely isn't a joke. The seals are being killed for their furs and also to a VERY small extent meat. 90% of them are less than 3 months old and they are very often skinned alive. I hope you guys think this is as horribly wrong as I do. I mean how the fuck could you skin this alive.


If these people can look themselves in the mirror in the morning then good for them. But I bet sooner or later they'll realize what horrible things they have done. If there is a hell these are the people that are going there. Not trying to be a downer but this shit really pisses me off.

Can you even do that to the DP on ebay? I mean will that affect emissions testing right there because where im at the bastards look under the hood as well and they might be like why is that Dp welded or some shit. Also is there another solution to RRE's short dp. I cant find any other short dp for a cat anywhere i might have to do what Nayr said.

Also, with the seals...yea its fucked up cost efficient or not. This is why i fucking hate Jlow's bitch ass (wearing fur whore) and KFC's stupid ass (raising chickens with unnatural growth). Dude the world is just really careless toward animals.

[Nayr747]

Originally Posted by metalhedskater

Dude the world is just really careless toward animals.

I know what you're saying man. To me, animals are in the same position now as black people were 150 yrs ago. People will eventually wake up and realize what they're doing. You dont want to know the shit they do to the chickens, pigs, cows etc before they're turned into meat or whatever. The pain that they suffer is just sad. Btw, the reason you can get Mad Cow from ground beef is because there is brain tissue in it. Makes you look at beef in whole new way.

For the DP, I dont know why emissions would have a problem. I am talking about turning the Megan into a "short" pipe, exactly the same as the other short ones. Just measure how long it needs to be to bolt up to the cat and cut it and weld a flang on the end of the DP. You would have a nice "short" pipe for around $135. The Megan pipe also is 3" piping the whole way except for a slight neck down to match the o2 sensor opening. The others are usually only 3" after the flex section. May not make any more power but who knows. Couldn't hurt.

[Gsx_hooptie]

Nayr's idea will work, just make sure you measure right It's the cost of the cheap DP and an appropriate flange. You'll need to know how to cut and weld. It's still a cheap solution. I can forsee two problems. First, cheap flex sections wear out of time. I doubt a cheap DP has a good flex section. Second, not all DPs travel the same length. Get your catback and cat first (I'm assuming you're using a cat, why do all this for a test pipe), then measure the remaining distance to the o2 housing to cut at the appropriate point. If you're going hardcore on the DP like this, might as well go hardcore on the cat, and save money there, too. That means getting an E-Bay Magnaflow and welding a couple flanges on, again, to the appropriate length. The "custom" system I have (that works) is an RRE DP, an RRE cat, and an n1 exhaust. I know the cat is exactly 20" long, within an eighth of an inch. That should help piece together the puzzle if you want to copy an RRE setup. I imagine you'll save about 120-150 doing all this. Obviously, even more money could be saved by making the catback yourself, too. Go for it.

[bighauns]

GUYS!!!

I am from Canada

AND THE GREAT CANADIAN SEAL HUNT DOES NOT EXIST!!!

Trust me!! This is one of those things that gets tossed around so that people can point at how dumb they think Americans are. For real, this is a totaly lie. IT DOES NOT HAPPEN!! Complete proof that many Americans know very little about the world outside of their own country.

Dont get me wrong, I think Americans are great where as many Canadians do not. But I will have to admit that many are uneducated about the rest of the world, Canada in particular with it being so close.