I got some 90* bends from summit and a pre-made mandrel bend x pipe from summit. I had it installed at a local shop. They did a really good job too. Originally I had bullets, but it was WAY too loud. I got some Borla XS mufflers and its as quiet as stock, but sound 100 times better. Mufflers were expensive at $85 each, but I may have $250 in it all, including labor. Cheaper and sound better than a borla to me.