ok so i want to replace my downpipe with a turbo back straight through exhaust. I mentioned this to my friend and he said when he had his turbo miata, he had his friend at his muffler shop custom bend a 3" down pipe to just dump straight to the ground. He said it made his turbo spool up alot quicker. I was thinking about doing this to my MSP. Is this a good idea? its also cheap to do.