Sparks, Yoshi or MBRP in that order. Sparks is my favorite. It sounds mean and performs like a champ from bottom to top, stock or heavily modded. No weaknesses w/ this pipe.

 

Compguy you said you want bottom end. The alba pipe has tons of bottom end, very torquey but very loud though. More bottom end than the sparks but not as much top end as the sparks.




2001 RAPTOR
ALBA PIPE

 

I have the CT and I love it. Wouldnt replace it for anything. Gives a great low end boost and high end as well. You do lose a little midrange on a stock bike, but its got lots of head room for upgrades. My bike should be getting some soon.