Yeah ST Motorsports has a custom manifold to run the bigger whipple. Last time I was there I think he still had one. Not positive though. I have the HO whipple in mine and love it. Very factorylike. I have a pretty conservative tune w/ 448rwhp. With a built motor Adam at ST was saying 600+ rwhp wouldn't be hard at all to reach. KB and whipple were my two top choices but I am glad I went whipple. I feel a lot safer with the GT500 fuel pump feeding my motor than an inline pump assist.