For BMW E36 enthusiasts looking to enhance their car’s performance, exhaust modifications are a common consideration. Among the options, upgrading to OBD2 headers often sparks debate. Are OBD2 headers a worthwhile investment for your E36? Let’s delve into the details.
OBD2 Headers: A Step Up from Stock
While the factory OBD2 manifolds on E36 models are a slight improvement over the earlier OBD1 versions, they still leave room for performance gains. Many in the E36 community agree that for those seeking a noticeable difference, especially without extensive modifications, OBD2 headers present a compelling option.
Independent dyno tests consistently demonstrate the benefits of upgrading to headers on E36 vehicles. These gains can vary depending on the style of header and the existing modifications on your car. Even on engines with stock camshafts, headers can provide a performance boost, shifting the power band and improving overall responsiveness.
Choosing the Right Headers for Your E36
When it comes to selecting headers, several options are available. For those aiming for a budget-friendly and effective upgrade while retaining the Secondary Air Pump (SAP) system, OBD2 headers are often recommended. They offer a balance of performance improvement and ease of installation.
It’s generally advised to steer clear of inexpensive eBay “shorty” headers. These often provide minimal gains and may suffer from quality issues. On the other hand, eBay long tube headers can be a viable option for those planning more extensive modifications and a full exhaust system. Long tubes typically require a custom mid-pipe for proper fitment, which is less of a concern when undertaking a comprehensive exhaust overhaul.
Personal Experience: The Impact of Headers
One enthusiast’s experience highlights the potential of header upgrades. Switching from OBD2 headers to Raceland long tube headers resulted in a significant increase in top-end power. This experience underscores that while OBD2 headers are a solid starting point, long tube headers can unlock even greater performance, especially when combined with further modifications and a complete exhaust system.
Conclusion: OBD2 Headers as an Effective Entry Point
In conclusion, OBD2 headers are generally considered a worthwhile upgrade for BMW E36 owners seeking improved exhaust flow and performance gains. They represent a cost-effective and relatively straightforward modification, particularly for those not yet ready for a full exhaust system overhaul. While not the ultimate performance solution, OBD2 headers offer a noticeable improvement over stock manifolds and serve as a strong foundation for further E36 performance enhancements.
