Does a 2007 Mustang GT equipped with the California emission system have less horsepower than a non-Californina emission 2007 Mustang GT?

If so, how much less?

 

I can't answer your specific question, but I can tell you that I learned it has different cats and the ECU carries a unique part number. I would be willing to bet that the reduced emissions=less power to some degree. Is yours CA emmissions? I ask because my bonehead dealer tried to claim I had to have it in PA, which it turns out is a border state (NY requires CA emissions). I did a little research and found it's optional for border states so I opted out.

 

I don't have one yet. There's a car up in PA mostly equipped the way I want, but it has this CA emissions thing. This dealer told me the same thing, but I'm thinking it only applies to dealerships near the NY/NJ border. I've seen lots of stangs on PA dealer inventories without it.

 

Why don't you just order the darn thing silly

 

I would need an order guide first silly.

I'm sure you're not alone in your sentiment. Probably everyone in the TMS members section is sick of my thread on being anxious about ordering a S197 mustang (the 110 day countdown thread). I tried to spare the other TMS members from this Chinese water torture.

 

No difference ALL CARS come with CA. Emissions.

If Montana had the strictest Emissions Regs then the car would be Montana Emissions. They build them all with the strictest states specs. It would be way to cost prohibitive to make a car with all the various states regs.

Richard

 

Well...then they're going to an awful lot of trouble stocking parts with different part numbers. My guy on the inside told me to run to the dealer to ditch the CA emissions on the order. There aren't lots of regs. Lots of other states have adopted the CA emissions voluntarily.

 

+1 I believe what Richard said to be accurate. When I used to work for Acura and was negotiating for a dealer swap I had to be careful to make sure I got a CA Emmissions car for our NY customers but Jersey didn't require it. This was back in 1995 and by 1997 Acura decided to make all cars from the factory equipped with CA Emmissions since it was cheaper to have one inventory not two. Not sure if Jersey went to CA Emmissions since though..

 

Gentleman, the fact is some mustangs have CA emissions equipment and some don't. Example on the left has it. Example on the right doesn't.

So do anyone now how much of an impact it has on performance?

 

It's an option on the Mustang. Acura gives customers the least choices of any mfg, as they aspire to make 15k profit per hopped up accord. You can only get them with/without nav with/without manual, that's it-4 options.

 

Hmmm Very interesting. I will make a phone call today and find out. My understanding was ALL CARS got CA Emissions regardless.

As for it effecting peformance i say No.

Richard

 

MI isn't a border state nor does it require CA emissions, so my Stang doesn't have it. Different cats and different programming could result in a loss of power (hotter burning cats with smaller catalyst holes for better burn = more restriction). In order for the cats to heat up faster, the timing can be retarded.

 

I think our gas (here in CA) has less octane?

 

A quick search online shows a slight decrease in H.P. with Cal. emissions for different cars. One in particular I found was the Tundra (5 HP). Not sure if this would even be a noticable difference.

 

Doesn't have less Octane, however it is a different formula. Ours is Oxygenated also we only have 91 Octane as our highest Octane Level.

Now i made some phone calls today and here is what i found out. The ONLY differences is possibly the cats and even that is up for question and some minor programming tweaks. Supposedly HP loss is 4-5 HP at the most is what i have been told. Other than that the cars are identical.

Also I think these days, there *probably* isn't any difference, even in programming, in most of the vehicles. Every once in a while, I'll read in Car and Driver that a car has 4 or 5 less horsepower in the CA emissions states, but that's becoming rarer and rarer. My guess would be that its similar to GVW laws, where a particular vehicle with a particular VIN is certified to meet CA emissions, no matter what you do to it later. Two identical vehicles, one certified, one not. Bureaucracy at its best.

Richard

 

As I mentioned above, I have confirmed with Dearborn that there are unique cats and a unique ECU for the CA emission cars.

 

Well maybe with my GTA's i gained back a few HP.

 

There is going to be some loss in hp, but not throughout the powerband. the bulk of the power loss is going to be through the factory calibration as it will retard timing to help the cats heat up faster. Since we only have 2 cats, they need all the help they can get! The 99-04 GTs had 6 cats, while most V8 cars have at least 4 cats (2 per bank).

 

So if one got a 2007 CA emission mustang, then it would be a lot slower than a non CA emission 2005-2006 mustang

(that's for you kevinb120 )

 

No it would not be a lot slower in fact my guess would be you would barley even be able to notice the difference. Besides after a CAI and Tune the difference would then be nill.

Richard