Welcome aboard FBlade. I have a custom Flowmaster 50 series Dual in Dual out setup. What were you thinking of going with single in/out dual in/out single in dual out. The more tubing they have to bend the higher it will be. As for my setup I paid 350 for everything parts, mandrel bent pipes, Chrom tips, labor. They did a great job and I have gotten nothing but compliments. Let us know exactly what you are wanting. Ask them what they are charging for the muffler itself. You can get most of the Flowmaster mufflers or about 110 at
www.summitracing.com hope this helps a little. Any more info you can provide will help.
Thanks for the info! I went to the shop today and almost had the system installed. What stopped me was they had to do some cutting and welding for the new system to be installed. I just got burned when I traded my 350z in for the Titan because I had an aftermarket system (Borla) on the z which lowered the value. I need a system that I can take off easily in case I sell it. Anyway they were going to install a duel system from the muffler back, passenger side duel tips, Flow master, price= 499.99 + tax. Seems a bit higher they you paid. It would cost 100.00 for them to change back to the original if I wanted to trade it in. I eventually will do some sore of exhaust system but in the meantime I took the money and purchased a Garmin Streetpilot 2620. I'll post pics when I mount it and give a review.