Is it possible that my engine cuts off because there is to much pressure leaking out from headers? I recently took off the boilers that were connected to my headers. By doing that 1. It makes my engine sound super loud! 2. It makes my engine bay look a lot cleaner 3. My engine cuts in idle. So my question is, can I plug those holes with bolts or do I have to get new headers that don't have holes in them?