[ron123]

Originally Posted by frenchsquared

I wont have mine till next week our I would measure it for you.
I do not believe the LS7 in a corvette has a larger throttle body.

I've just measured the STOCK OEM SS air tube inside diameter at the MAF sensor location ... SS is only 3.75" inside diameter. Then, right at the very end of the snorkel it flares out slighty at the connection fitting where the elbow attaches. The air tube is much narrower inside than it appears to be looking at the outside on the SS.
Since the Z28 Performance intake states that after install the car does not need to have a re-tune, I am guessing that dimension at the MAF sensor location is similar.

Frenchsqaured, I took an uncooked spaghetti noodle and used that as a gauge to get a precise diameter measurement at the MAF sensor location inside. In addition to diameter, could you please also measure the distance from the outside of the z28 airbox side wall to the end of the z28 MAF tube? ... at the end where it connects in to the flex elbow.

While I had the SS intake parts off I noticed that the inside of the housing box has a trapezoid white shaped charcoal filled device fastened to the housing with a do not remove marked on it. That charcoal likely absords gas fumes when the engine is off and then when restarted they are sucked in to the engine. Probably to be EPA certified. Since the Z28 performance intake does not have this device is one of the reasons it is not carb certified and banned in California.


Ron