SunnySideUp wrote:I did something similar to Razooli's modification of the stock air box. Rather than an enlarged slot I opted for a series of large holes in the front and down the fender side. I left the rear and engine-side of the box alone to keep the amount of hot air ingested to a minimum. It looks totally stock and folks at the DMV haven't a clue since they can't see it.
I was considering using the cone filter approach. I was apprehensive because of the need to fab a heat shield of some sort. I also wondered about whether the configuration and small increase in surface area of the typical cone filter would really be any better over the panel filter if the panel filter could just get more free air available to it. Modifying the stock air box produced a notable difference, not neck-whipping, but notable. I purchased K&N panel filter during one of IAP's sales and that helped a bit, too. It was an inexpensive mod that has seemed to help. I even get that guttural growl sound from the intake like one would get with a cone filter when you punch the accelerator (not as quite as loud, but it's definitely there). For me this was a less expensive and acceptable alternative to the cone filter approach.
I also decommissioned the pre-heater manifold on top of the throat of the aluminum collector box on top of the intake plenums. I live in an area of the Southwest where I don't have to worry about icing in the intake during cold weather. It didn't make sense to re-heat the air after making efforts to cool it down. If I relocate to a cooler climate I can always re-instate the pre-heater manifold.
was there a noticeable difference after doing this?
(cutting the holes)
