Are you replacing a car and then see it loads with the wrong bumper or loads with a spoiler in wrong place? This Mod just removes all visible tuning - the Extra Engine , Suspension , horn , color , Transmission & etc still works.

In this mode I removed all visible tuning of all GTA cars in : update / x64e / x64w

No extra bumper - No roll cage - No spoiler - No Skirts - No extra bonnet - roof

All cars loads with stock parts

In OpenIV
First Press ctrl-F3 and Find All carcols.meta replace all of them with those that I gave you exactly the same folder I made in rar Archive
for example replace [openiv/gtav/Update/Update.rpf/dlc_patch/mppilot/common/data/carcols.meta] With [NOTUM/Update/Update.rpf/dlc_patch/mppilot/common/data/carcols.meta] in the archive you download from here

Do that for all carcols.meta

Now you can replace all cars without worrying about wrong parts loading on your cars in-game