I have used Thrifty Auto Service in the past. They are good guys, might be a bit expensive but they did work on my cars in the past and I have had no complaints. Talk to Darcy he will help you out.
156st and 116ave, just look for the big muffler. You’ll have to talk to Darcy, I’m pretty sure something like that would be just straight time on the rack.
Their focus is european cars, so I can’t guarantee they won’t “snear” at our Nissans, but they work on a lot of the Porcshe and BMW club member cars, many of whom have race-prepped cars to various degrees.