Platform sharing is real, but it is not uniform. Manufacturers reuse the front half of a car far more aggressively than the rear. Turbocharger placement, charge pipe routing and the crash structure at the front are frequently common across a platform family. The floor pan, the tunnel, the rear subframe and the bumper cut-outs are where the variants separate.
A convertible needs different structural reinforcement and a different rear floor than a sedan. A coupe often has a shorter rear overhang and different mounting points. That changes where a pipe can run, where a hanger can sit, and how much clearance exists around the rear subframe and the fuel tank.
A part developed on the sedan and confirmed against the sedan is not automatically correct for the coupe or the convertible. Sometimes only the rear section differs, which means the front section still fits. Sometimes the difference runs further forward than the customer expects - and that is the case that turns into a return.
Give us the body style explicitly rather than the model name. A single model name is not an answer: the coupe and the convertible are different cars with different codes. Add the build year and the market, and we can confirm the correct configuration before you order, instead of discovering the difference on a lift.
Our Shop by vehicle navigation groups parts by platform and body style for exactly this reason. If you cannot see your body style, ask - it is usually a matter of confirming, not manufacturing.
