i want to get the spintech mids and their catback minus the mufflers because i dont like how loud they are. has anyone replaced the spintech with another muffler? also how are the mufflers placed under the truck? i really wanna keep the over the rail side exit in tact and use the dynomax ultraflo muffler in place of the spintech. any pics from under the truck would be awesome. also do you guys think there is room if i still think its too loud to cut in some high flow cats? thanks