I’ll gladly share my MAF table cal with anyone. Our engine was a stock LS6 with a Crane Cams package of 1.8:1 rockers, dual springs and titanium retainers, Denso IT22 plugs, MSD plug wires, RC Engineering 310-cc/min. injectors and a Corsa X-pipe. If you’re engine is similarly modified and you’re going to use the Killer Bee II, email me at finspeed@netmotive.net and I’ll send you the MAF data.


With the Halltech Killer Bee II in place, I took the car to the Westech Performance Group in Mira Loma, California to use their Superflow Autodyn chassis dyno to validate the installation. It was a warm day and, not wanting any knock retard to skew the dyno results, while Eric, Westech’s dyno technician, strapped the car down; I poured enough Rockett Brand 100 unleaded racing gasoline in the tank to make 93-octane. Then, I made five runs on the Westech Autodyn.


The results were surprising. The car averaged 380.1-hp at the rear wheels SAE-corrected which works out to just under 450-hp at the flywheel. The addition of the Killer Bee II paid off in a 11.1-hp SAE improvement over the Granatelli parts and a 14-hp improvement over the stock air filter assembly–that’s more than three times the improvement we saw with the Granatelli Motorsports MAF sensor and air induction.


In short, the Killer Bee II is, well...killer. It’s the best C5 air box on the market.