Ive heard that the perrin is more $$ and for the price difference just get the Helix. Most people say that with Perrin your just paying for the name. However Ive never heard any complaints from people using either DP so it comes down to personal preferance.

 

the perrin is more for high horsepower applications becuase of the twin barrel design and i doubt u would tell the difference between that and the helix unless u have a lot of hp, i have helix and its dank , i got it for like 300 it comes with a cell fix if ur in socal go to dynamic autosports for a good deal

 

I like the quality of the perrin. Never had any issues with it. I've had both versions: first the hiflow cat version, now I'm running the catless.

 

It's hard to beat the Helix flex, especially with the price tag consideration. You can't go wrong.