Hi! I have an Astra 2.0 Turbo Coupé 2001. I want to replace parts of the exhaust system. The parts I'm replacing is the long muffler and the S shaped pipe. But I need the dimensions of these, the muffler is going to be swapped with a straight pipe. It's going to be a 2,5" system. Basically what I need to know is the length of both the muffler and the S shaped pipe. I'm going to stick my Remus JAP silencer at the end. Thanks in advance. This image is just for reference, I'm going to buy the parts separate.