How different are the two in handling and power delivery, driveability?

Am aware of the piston issues on the hatch but should these be replaced, are there any other issues in upping the power from the standard 330 sti?

Apart from appearance and interior whats the big positives and negatives between the two

Thanks

 

Hatch is torquier and pushes you back in the seat harder.

The extra torque makes driving in higher gears much more enjoyable.

Interior on a 330s is a pleasant place to be, miles ahead of the Blob.