Dynojet makes one that is under 20 k but it will only do up to 500 rwhp. The dynojet 248 I have was around 28 k, 5500 for the hole in the floor, 1000 for the pit covers, 3500 for wideband oxygen sensor, 1000 for the computer to run it, 2500 for shipping, all in all ended up being about 40 k.