Subaru EJ25: Complete Expert Guide to Performance, Reliability, Common Problems & Maintenance

The Subaru EJ25 is a 2,457 cc horizontally opposed (boxer) four-cylinder engine produced from 1994 to 2021, available in naturally aspirated and turbocharged variants with power ranging from 155 hp to 341 hp. It powers over a dozen Subaru models and is legendary for its tuning potential — but also notorious for head gasket failures, … Read more

Nissan VQ37VHR: Complete Expert Guide to Performance, Reliability, Common Problems & Maintenance

The Nissan VQ37VHR is a 3.7-liter naturally aspirated V6 engine praised for its high-revving character and strong internals, but it comes with four well-documented weak points — oil galley gaskets, catalytic converter degradation, water pump failure, and oil consumption — all of which are manageable with proper maintenance and early diagnosis. Introduction Why is the … Read more