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Discussion Starter #1
this topic probably has been discussed before but...

i live in the great socialist republic of california where smog rules are quite strict. i'm planning a turbo swap and was wondering if it is going to give me smog inspection problems. could they even tell that the factory turbo is swapped out for another one?

any help would be appreciated!
 

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Probably. It's not so much the turbo but more of you DP and exhaust you'll have to run to support the turbo. Make sure you get a Catted DP!! Perrin makes one with 2 CAT. It's a 2 section pipe.


Front Section

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Just and FYI - In CA messing with the OEM cats is illegal even if you replace them with aftermarket cats. So if you have an inspector that knows what he's looking at he can still fail you with a catted DP.
 

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Discussion Starter #4
i'm actually not planning on replacing the DP. only turbo swap. do they check the turbo for CARB sticker or to see if it's OEM?
 

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I agree, I was thinking about swapping out for the VF52 will i be "required" to change the DP that would cause me to fail smog? (i already have SPT CBE)
 

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You have a high chance they will not check the turbo itself as it is quite in a remote location.
However the tune you needed to get that running right will cause you to fail. :-\
 

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Depending on the turbo and tune you can actually have a cleaner running car...

It's not an uncommon scenario to have less emissions with a more aggressive tune and larger turbo...
 

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Depending on the turbo and tune you can actually have a cleaner running car...

It's not an uncommon scenario to have less emissions with a more aggressive tune and larger turbo...
This can be true, but the OBD systems tuning would not match the one on file for the vehicle. Hence fail.

To the OP: You have 6 years ;D
 

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Discussion Starter #9
This can be true, but the OBD systems tuning would not match the one on file for the vehicle. Hence fail.

To the OP: You have 6 years ;D
so they check to see if you ecu programming is same as the factory?

Also, 6 years? what happens after 6 years?
 

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This can be true, but the OBD systems tuning would not match the one on file for the vehicle. Hence fail.

To the OP: You have 6 years ;D
so they check to see if you ecu programming is same as the factory?

Also, 6 years? what happens after 6 years?

On new cars you are not required to get a smog check for 6 years... ;D
 

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This can be true, but the OBD systems tuning would not match the one on file for the vehicle. Hence fail.

To the OP: You have 6 years ;D
so they check to see if you ecu programming is same as the factory?

Also, 6 years? what happens after 6 years?

You would be surprised how much the OBD 2 diagnostic system tells your friendly smog personnel :'(
 

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Since you have six years, odds are good you'll be done with the car, demodded and traded it off on something newer by then.

If not, talk to one of the tuners and get a custom tune done that mimics the stock tune as much as possible, but will let the car run just to get it to the smog station. I'm fairly sure this should be possible.

For me, should I even keep the car that long (not likely), I'll switch registration someplace else, like Nevada or Montana.

Rob
 
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