I just ordered a Dual Flow twin air intake with K&N cone filters from West Coast Corvette. But an interesting question just ran through my mind...how safe is it in wet weather? I have never driven my Vette in the rain and I do not plan on doing so, but do I need to be worried about getting caught in the rain? I do not want to damage anything by sucking moisture in through the air filters. Does anyone have one of these systems on their vette?

I have this same exact system and have had ZERO problems with it. It's a good looking setup and works great. My car is my daily driver and has seen plenty of rain with no problems. You could also add one of those front hood seal things for like $20 if you want. I don't have the added seal though...

thats good to hear...I purchased the chrome one and it looks like it will look really good. I needed to open up the intake to compliment the Corsa Tigershark exhaust i put on it.

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Getting the filter wet isn't enough to cause any problems with hydrolocking, if that is your concern. You practically need to submerge the filters for that to happen.

I have the chrome twin flow on my car, and have driven it in rain many many times. Not a problem.

just get a hood seal from them too... I have it and it's good for 5 hp too!

Has anyone changed their mass airflow sensor? does this require recalibrating the computer, or does it sense the change and adjust on its own?

I thought the dual filters caused too much air stream turbulence?

I have thought of installing the hood seal, but wanted to wait and see how it acted first. I am not concerned with just horsepower numbers...Im sure anything will be an improvement over stock. But this system really looked good too I thought. My only concern was if it would create a problem if I got caught in the rain.

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I have heard this too. Don't know how valid the data is, but you can read about it here:
http://www.crossedflags.com/nuke/htm...d19d7427da8aac

that linked post was specifically about the ones sold on EBay.

Thanks Mike, the articles were very interesting! Really when you think about it you would expect a little more turbulence with a dual filter set since you are melting 2 into 1, plus its pulling air on its own from the engine bay, not being force fed from the radiator compartment like a Vortex rammer would or something similiar. But i was going for looks too and not just horsepower. Im sure there will be a horsepower gain over stock, and Im not looking to take it to the track or anything. There must be some validity to the horsepower numbers that the manufacturers put out, of course you dont really know what rpm range the gains are in without using the dyno.

That's correct, the dual flow causes turbulence -- at the MAF sensor wires -- it's not just about horsepower, but also about how the car runs.

Having fooled around more than I want to with intakes and dynoed them, if you must have the "twin flow," then at least keep the stock MAF screen -- that will smoothen out the turbulence somewhat, but you may still see surges at idle, some stumble off the line, and a noticeably uneven acceleration band.

I have the twin flow and hood seal as well. The mods have been installed for two years and I have had no trouble.

Go for it!!!

I have the twin flows and no screen in the MAF on an 02 Z06. I don't have any of the problems you mention. I've been dyno'ed and even on the print out there is no uneveness. It's an old wife's tale.

The 2002 Z06 PCM code was written without the screen. For cars that have the screen, the surging/uneveness often occurs.

The 2002 Z06 PCM code was written without the screen. For cars that have the screen, the surging/uneveness often occurs.

wlxx861:

...well, there you have it -- twice, even.

I have the twin flow on my vert. with no screen.I also heard the stories about the surging/uneveness but in over three years I have not had one problem. Go for it. It not only looks good it also gives a gain in performance.

Well.......I guess I got told twice times. As I said I have an 02. I did speak to MTI in Houston about this and their comment was; on a highly modded car the twin flows MIGHT cause a turblence problem. I have intake bolt ons and SuperMaxx headers. No problems.