i didnt modify the subrame and the plastic mounts... i did a custom mount that bolts directly to the engine.. so i can change the plastic mounts every time they dont work... and all the chasis in my car is stock.. no modifications to the chassis or other parts... if i want to drop the ka in ther again.. it will drop fine. the clearance was right because i was using a custom oil pan and u can go lower with the engine without cutting the hood.