I just ordered the Fabspeed muffler and bypass pipes for my 2001 2.7L. I emailed them and Joe responded to my emails and answered all my questions and promptly. They gave me a $100 off the system still bringing the total to $1495. I've messed with so many different mufflers now and I decided I should just buy the best now.
I'll be ditching my current Stebro race muffler and bypass pipes and putting on something I believe to increase performance and sound but, minimal resonance. My ears will thank me. The Stebro setup will be for sale in a couple weeks.
Very pleased so far with the customer service over at Fabspeed.