Accurate, TTI or Flowmaster I've used all 3 with great success
Flowmaster was the least expensive IIRC, TTI was the most $$$ of the 3
Accurate was a nice near OE quality, but with a little better sound & flow...
{I have FM Delta 50 Muscle Car Series out the back 3" mandrel with a H-pipe out the back
45* cut of right at the edge of the rear bumpers, it's deep & a bit loud, not too loud
but I don't have a bad drone, you can also put silencers on it like the hemi cars had
& if you want to tame it down a bit, It's a real muscle car I like it aggressive, you need
to have the proper size for the HP/TQ output or if it's too big, it will drone like a MF-er
the proper placement of the H-pipe or X-pipe can make a difference in sound or drone too}
IMO depends on the car, the mods performance or just a Daily driver
& how aggressive or badass I want it to sound
I also use a Flowmaster Delta Cat-back system single 3" 50 Series
on my 99 Dakota SLT 4x4 Magnum 5.2/318 with a bunch of bolt on stuff
& a 4" system my 02 F-350 4x4 Dually Powerstroke
