[Roto-fab 1]

The Roto-fab ZL1 CAI is making great power with or without a tune. Here's something to make it even better!
Introducing the BIG GULP! This duct is a bolt-in replacement for the stock air brake duct on the left side (driver's side) giving you much needed air to your intake while maintaining a brake duct! We've increased the inlet size to utilize more of the grill opening and we're making it adjustable! You have the option of routing all of the air to your air box or routing approximately the same air to your brake duct as stock, then the remainder to the air box. If you are drag racing or just want to go fast, go "all air box". If you are road racing, choose a position routing more air to the brakes.

Here's the stock left front brake cooling duct on the ZL1. For reference, the plastic inner fender bolts to the end of the duct with two screws (Note the W/W reservoir has been removed)




Here is the BIG GULP mounting in the same position.




Here is a view showing the air flow.




A comparison of the BIG GULP and the stock brake duct.



In this view you can see we have a larger entry than stock which allows us to use more of the grill opening.



Here is a top view showing the shape of the inner baffle and it's position in both extremities. The small silver circle is the hinge pin location.




Here is the adjusting lever in the recessed front grill area.




We have designed and molded this piece as a direct replacement for the stock duct. No drilling, cutting, etc., if you can change a tire you should have no problem installing it. The W/W reservoir does need to be relocated-we have a great kit for that as well!