The simple answer is no. Tampering with the casing is going to void your warranty, no matter what console you have. From the warrant from SCEA:
"THIS WARRANTY DOES NOT APPLY IF THIS PRODUCT (A) IS USED WITH PRODUCTS THAT ARE NOT COMPATIBLE WITH THIS PRODUCT; (B) IS USED WITH PERIPHERALS SCEA DOES NOT LICENSE OR SELL, INCLUDING NON-LICENSED GAME ENHANCEMENT DEVICES, CONTROLLERS, ADAPTORS AND POWER SUPPLY DEVICES ("NON-LICENSED PERIPHERALS"); (C) IS USED FOR ANY COMMERCIAL PURPOSE, INCLUDING RENTAL OR ARCADE PURPOSES; (D) IS MODIFIED OR TAMPERED WITH; (E) IS DAMAGED BY ACTS OF GOD, MISUSE, ABUSE, NEGLIGENCE, ACCIDENT, WEAR AND TEAR, UNREASONABLE USE, OR BY CAUSES UNRELATED TO DEFECTIVE MATERIALS OR WORKMANSHIP; (F) HAS HAD THE SERIAL NUMBER ALTERED, DEFACED OR REMOVED; OR (G) HAS HAD THE WARRANTY SEAL ON THE PS4™ SYSTEM ALTERED, DEFACED, OR REMOVED."