can anybody share which has good fitment for CT9A and if you have any cons using it over a drip pan? Application will only be used on race days and removed, car drives to and back from the track and is a daily driver.

 

Your engine shouldn't need a diaper. If you've got leaks, fix them. Especially if your car is a part time track toy.

Now with my opinion out of the way, I can't recall ever seeing an engine "diaper" for our cars. Why not use an undertray?

 

Many drag racing events require an engine diaper or catch pan under the motor and trans to reduce spillage in the event of a motor failure. They really do help.

OP, I would suggest building an undertray with a "box" to catch fluid, it's pretty simple, I've done a few.