Help! Stinger Abnormal shaking

[stinger888]

Hi I am new to here.
I have is JB4, Injen intake, MBRP catback, BMS WMI kit, 50/50, DENSO spark plug(around 20K Km after instal, gapped) and shell 91 in Canada. JB4 with EWG and Fuel wire, OBD.

Here is the issue. It seems from today after I enter a track drag race day, the car become shaking a lot. In the way back the power seems lose a lot, but not losing full power but really lose a lot and the sound is louder than normal. But no CEL. After I back I tried Map 0, 1, 2, 7(wmi, all default setting for WMI(boost additive 50) and EWG), the car is still feel shaking but less than the before; and seems power is still there but compare with before is losing some.

I just went to the dealership do the oil change on friday.

Also like 4 day before this happened, when I drove on highway the car suddenly lose a lot power and shaking a lot. meanwhile the CEL light is on. but after I park on the side and re start the engine the problem is gone the power is back,CEL is gone too. And no code found. Then all drive is fine.

The attached is one 1/4 mile log and one in the later today, city low speed driving. The shaking is less than early today but still noticeable.
Do you think this is cause by spark plug?

 

[MerlintheMad]

I think that any dinking around with the stock drivetrain, followed by tracking the car, is asking for a list of possibilities as "cause" for appearing CEL light and rough-running and reduced power. Fouled plugs is just a first trouble shoot. Turbos could be at fault. Fuel/air mix could be off which could be caused by something software related (a failed/failing sensor is also possible). And I'm not even a car guy/geek. Hah.

(Oh, and welcome to the forum: I came here asking for help too.)