1. change front grill and fix bodykits (since front and rear got sensors will this void warranty?not sure if they need remove those sensors from original body and do some rewiring)
-Depend on car manufacturer usually bodykits will not void warranty but render paint warranty to exclude the bodykits section

2. fix front strut, rear antiroll and torsion bars
-Should not void any warranty unless involve cutting body structure and parts (Usually this parts is plug and play)

3. change headlamp, fog lamp and cabin bulbs to led type
-Headlamp change to HID (No issue with car manufacturer but got issue with police/jpj)
-Foglamp no issue
- LED cabin light no issue as this item is plug and play

4. fix door scuff/sill plates (need do wiring)
-No issue (if got problem bring back to acc. shop instead of your manufacturer)

5. change door handles to illuminated type (need do wiring)
-No issue (if got problem bring back to acc. shop instead of your manufacturer)

6. change air/oil filter to performance type

-for Drop in usually they close 1 eye but if open POD (it is no no)
- oil filter - if warranty you bring back to authorised service in time should not be issue

7. fix fog lamp cover with built-in led drl (need do wiring)
-No issue (if got problem bring back to acc. shop instead of your manufacturer)

8. fix rear bumper smoked led reflector with brake light (need do wiring)
-No issue (if got problem bring back to acc. shop instead of your manufacturer)

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Added on March 7, 2012, 11:08 amnote: if by cutting wiring affect other thing make sure you bring back to acc. shop to get it fixed before send back to authorised service...

This post has been edited by calvin_ng: Mar 7 2012, 11:08 AM

strut wont void warranty laaa

as I know installing bodykits they will not touch your wiring (Including reverse sensor) no reason to unless your sensor is located way below laaa

You cannot change your main light (Headlight) to LED unless you are referring to the small parking light laaa (No warranty void) plug and play maaa

Drop in filter wont void warranty but throttle body cleaning not included pay saparately every 20,000km to clean the throttle body... drop in can cause the throttle body very dirty and your engine will vibrate after some time...

+2!!!