What is the difference between OEM and aftermarket turbos?

OEM turbochargers are typically more expensive than aftermarket options. This cost difference is partly due to the stringent quality control measures imposed by the original vehicle manufacturer. Enthusiasts seeking a direct, reliable replacement may find the investment in an OEM turbocharger justified.

Is OEM better than aftermarket?
Quality. OEM parts offer greater assurance of quality than aftermarket parts because they are the same as the parts on new cars and offer the same level of performance. Aftermarket parts, however, vary greatly in terms of quality, so there is a higher level of uncertainty concerning the quality of aftermarket parts.

Why is OEM more expensive?

OEM parts are generally more expensive than aftermarket equivalents, especially if you opt for a Genuine or factory-original model. More limited selection. While OEM parts offer guaranteed quality, fewer choices are available, especially if you're looking for parts that enhance your vehicle's performance.