I'm not sure what you're talking about bro, the type of floor? The noise happens on every single speed bump, on every curb I go up into a gas station, over every sewer drain that I run over, etc. Especially at slow speeds, more than higher speeds.
Also, when I accelerate from an incline, I get the crunching noise in the front. When I accelerate downhill or on a flat surface, nothing really. But accelerating up a hill or incline at all gives me that same weird crunching sound.
GGP 5-Speed Manual (LSD)
CDD Removed | B&M Short Shifter | Stillen Front & Rear Sway Bars
Tein S-Tech | KYB GR-2 | C-West Eyelids | Type-R Lip | JDM Leather Shift Knob
Slotted Rotors | Stainless Steel Brake Lines | 8000K HID Bulbs
Custom Painted Tails | Cleared Turn Signals | Custom Altezza Grill
18" ICW Racing 073 | Shaved Front & Rear Sidemarkers
ACT Heavy Duty Clutch w/ Street Disc | HKS Drager II Exhaust
Alpine CDA-9855 | Alpine V12 600W | (2) Alpine Type-R 10" Subs