For owners of a 2013 Jetta TDI looking to modify their exhaust system, understanding what a delete kit entails is crucial. Your factory exhaust system is equipped with several emissions control devices, including an H2S catalyst, a NOX catalyst, and a diesel oxidation catalyst (DOC). When you opt for a delete kit, these components are removed, leaving only a smaller catalytic converter located on the midpipe.
This original, smaller catalytic converter is often considered insufficient for the increased exhaust flow that results from deleting the other emissions components. Consequently, delete kits typically replace this part. You’ll generally have two choices for this replacement: a straight midpipe or a midpipe that incorporates a larger, high-flow catalytic converter. The inclusion of a high-flow catalytic converter is intended to mitigate the characteristic “diesel exhaust smell” that can become more noticeable after a delete. While some individuals find this reduction significant, others report minimal difference. If you are sensitive to diesel fumes, investing in a high-flow catalytic converter might be a worthwhile consideration.
Deleting components will alter the sound of your Jetta TDI. While it won’t necessarily make your car significantly louder, the change in tone is usually perceptible. Some drivers may notice a drone or whine, particularly at higher speeds. To counteract these specific noises and enhance the overall driving experience, you might consider a resonator. A resonator is a section of exhaust piping specifically designed to cancel out unwanted frequencies and refine the exhaust note.
When it comes to the rear section of your exhaust, retaining the stock muffler is an option. This means the delete kit components will connect to your existing muffler, preserving the factory exhaust volume level. Alternatively, “performance” exhaust systems or full straight pipes eliminate the stock muffler entirely. These systems typically offer a wider diameter for maximum exhaust gas flow and reduced back pressure, which can potentially improve engine performance. However, it’s important to note that these setups significantly increase exhaust volume, often resulting in a very loud vehicle. While a louder exhaust might appeal to some, it’s worth considering whether the increased noise level is appropriate for daily driving and considerate of others.
It’s critical to understand that if you intend to keep your stock muffler, you must choose a delete kit designed to be compatible with it. A full performance kit, designed to replace the entire exhaust system, will not be compatible with the stock muffler configuration. Carefully consider your goals – whether they are focused on emissions removal, sound modification, or performance enhancement – to select the appropriate 2013 Jetta Tdi Delete Kit for your needs.
