Got h&r and akrapovic installed at motorweks and it was $1000 for both out the door after tax etc. they charged 6 hours labor for the spring install.
Waaaaaay too expensive but options are limited in Houston. FYI, this is double what I would have paid if I still lived in Orange County.
That being said, motorweks does good work and I'd use them again.
2013 X5 M
2011 Taurus (gets parked up front with the Lambos)
2008 Cessna 400