I didn't want to post something that would cause damage so I deleted the post. I called the VP tech today and was assured that it will in fact not cause damage if used in moderation. It is a MMT based product. Anyhow we used the VP Octanium last night in @StormTrooperST Procharged Mustang. We did the test within 10 minutes and the results are clear. First I've never been a octane booster kinda guy but this stuff works great. We did a log on straight 91 the went to the gas station, dumped it in and filled the car. It says it treats up to 10 gallons but our test were done with 16 gallons. I dont know about the cobb but on the SCT when the knock sensor is negative it will take more timing. When it goes positive it's pulling timing. This tune is maxed out timing wise at 18.5 degrees. On 91 it pulled timing up top and with the octanium it just wanted more. Good thing about this stuff is it's available at Autozone.