Hey guys, I plan on dropping a 4v engine out of a 1997 cobra into my 2003 GT ragtop and I have been informed I need a set of headers because the 2v headers dont match. Will a set of long tubes pass emissions here in ontario?

 

As long as your mid pipe has converters you should be fine.

 

I can not see that being a problem

 

It will depend on the quality of the aftermarket cats you will have, other then that, they should.

 

I have magnaflow exhaust system. I was hoping to stay with the stock xpipe for now. Hence why I am worried about emission.

 

FYI the stock midpipe is an h pipe. If the car has and x pipe you already have an aftermarket pipe which is a bonus.

 

That is true....newb mistake haha...sadly enough, I knew it was a stock H-pipe to on the car..

 

Shorties would be the ideal way to go so you can put a stock h pipe on for e testing, but then again that is changing anyways ......
http://www.ontariocanada.com/registr...postingId=2242

 

if I am correct, this means it will be easier to pass?

 

It will be if the engine itself remains stock, meanning no cams, blower, turbo, unless it was factory equipped with a blower like the '03/'04 Cobras, and current GT500's.
Reason i say that is because those mods require a custom tune which changes things in the ecu.
Say if you have a stock engine that has been tuned with a programmer that has exhaust work, or an intake, or pulleys for example, you can put the stock tune back in, do the e test via the OBD, and pass, and then do the idle test with no issues cause it's running like stock again.
With an engine that has cam work, blower work, turbo work, it's not that simple, all the setting get changed like the spark, air/fuel, ects so it can run descent again , so going back to a stock tune will not work for the idle test, only for the OBD test where it doesn't require to run/idle.
Hope that makes scence.
I'm going to look deeper into this as my GT is cammed, and i need to get the e test done before i park it, or when i bring it back out next season since my B day is in the middle of winter.
I'm hoping that this isn't the case. I hope all it does is to make sure that all sensors, and related emission control stuff is working up to par, and not giving codes. If it checks the spark, and air/fuel settings, that will not be good.