Did you keep the center resonator and replaced the back mufflers with a straight pipe?I have straight pipes. I replace just the back mufflers. The sound is great. I think it sounds better than F360 with tubi (but less beautiful than 430 with tubi). The best way is finding the exhaust tips that u like then go to custom exhaust shop that use stainless steel. To make the pipes, it cost me around $500 + the cost of the exhaust tips.