i don't think $150 is unreasonible for the uppipe, to tell the truth. I paid $100 to hybrid performance to borrow their equipment and my friend 99b16si did 99% for me and it was a real pain in the ass. I've heard up-pipe installs as high as $500 before. You don't need to take off the dp to do the uppipe, best way to do the install is to jack up the motor (found that out the hard way and removed the whole turbo & brackets instead ) I've never been to coastal but it sounds fair, i wouldn't want to have to touch the Up ever again! haha. Why don't you pay coastal to do the Up and do the easy dp yourself, if they'll give you the same price? Just a thought. Best of luck.