So, i've just bought a 2000 plate Golf GTI, and stupidly, i didn't do a hpi check.

Turns out that the car was a Category C Write off, and now that i have applied for a new V5C I have instead received a letter regarding a Vehicle Identification Check. The car currently has a few modifications, but i'm not too sure if it will effect the actual VIC, so i'd like someone on here to enlighten me on the situation if possible.
The modifications of this car are - Lowered, debadged and it has an aftermarket intercooler on it.(quite big, guy had to cut part of the front bumper off to work it in)
Will these modifications cause the car to fail the inspection, as they arent stock?
Cheers, Mo