I've actually seen a lot of "pro" tunes (have receipt for at least one on this car) that were comical at best, and fraudulent at worst.

Most of those names you dropped have probably taken classes from Banish. He's done numerous workshops teaching Diablosport engineers, independent shop tuners, as well as what you would refer to as "goofball" hobbyist tuners.

That was sort of my point with the ignition controller. I didn't pay someone to write all the code and spend two years developing and testing it, it was my own blood, sweat and tears with the help of some very bright individuals. I may be a goofball, but I'm not the goofball you're thinking of.

According to the data aggregators (Experian) I'm the 8th owner of this vessel. It was originally titled in New Hampshire and eventually ended up in Illinois for 2 owners, where I bought it. The previous owner (a forum member) bought it after an insurance claim totaled his last C5. He gave me receipts going back to 2014, but the air intake and trans / clutch stuff seem to predate all of that. I think I paid a fair price for it because of the number of owners and unknown mods and service history, but that's water under the bridge now.

The tune has a MAF calibration from a C6 that I assume is supposed to match the Granatelli MAF sensor, and the cylinder volume constant has been adjusted to match an overbore on the block. The only other bits of "tuning" that were done were adding ridiculous amounts of spark advance in cells (load ranges) the engine will never operate in. And even though it's apparently had at least two "tuners" that have touched it with one obviously a pro (I won't mention his shop's name but it's in Illinois), none of them were considerate enough to uncheck the CAGS option so the skip shift solenoid dummy resistor could be eliminated.

I've yet to do any logging to see how far off the MAF calibration is, but I'd bet you all my marbles I could improve upon it with minimal effort. Certainly the VE table, since it's bone stock and the car has CNC ported 241 heads and an LS6 intake (both of which were also unknown to the previous owner) along with longtube headers.

 

So I've put this one off until the last. After dropping the driveline more times than I'd care to mention, I should be stabbing it together for the final time tomorrow after fixing / re-routing the rusted rear brake lines that started oozing fluid after being molested.

I'm looking for a stock airbox / bridge / TB coupler that will connect to this MAF. It appears to be an OE 85mm that's been somehow violated by Granatelli as evidenced by their sticker over the cover plate. I see several on vettenuts - one of which says it's a Z-06 and possibly includes the factory MAF though I will need to confirm that. Does anyone know if the Z-06 intake is the same as an LS1 C5?