Do you need to modify the exhaust header on a new car? Replace the GPF with a straight pipe? Prevent blockage?

How do you remove the gear knob from this car? I want to replace it with a new one.

Pajero V93 chassis is leaking oil, and it's dripping onto the exhaust pipe. It needs repair.

Is your 2017 model with a 1.5L CVT having black residue on the exhaust pipe when you touch it? Does anyone else experience this?

Is the left side of the Jeep Compass exhaust pipe naturally lower, or does it need to be fixed?

Do you need to modify the exhaust header on a new car? Replace the GPF with a straight pipe? Prevent blockage?

In my opinion, the sporty exhaust sound is already quite loud. Is there still a need to modify the exhaust?

Do you have the issue where the steering wheel is straight, but the car veers to the left?

The engine warning light is on for my 2019 car, and the diagnostic says the catalytic converter is aging. What should I do? Do I need to replace it with a new one?

This pipe seems to be leaking oil. Does this happen to you as well? Also, what is the purpose of this pipe? Is it for exhaust gas recirculation?

Hey everyone, quick question: What's the outer diameter of the exhaust pipe for a Nissan Sunny? Need to buy a fire cap to put on it.