custom isn't necessarily expensive. It depends on if you let someone rip you a new one, or go quality. My system fully fitted cost me less than it should have, but turbo back, custom built mufflers, and a new metal cat should have cost me $1500. I don't think that's overly expensive. Yes more then a "I'll take a noisy ass 3" for $300 thanks!"Anyone who heard my old 2530 can attest to the fact that it was very quiet for what was in front of it. A verydeep but not loud note at idle and as it came past 3000rpm you could hear the motor louder then the exhaust... Rare in a turbo car.