GPX or Exciter secondary on 78 SRX?

[lilsnopro]

There is a lot of talk about running a GPX or exciter secondary on an srx. Just wondering if any of you have had experience with either? Which is better? Building an srx for 660ft. Thanks.

 

[dynofun]

For stock racing? Use an SRX secondary, don't waste your time with a GPX one. Mod Stock use Polaris.

 

[phazerguy]

Cat secondary works really well on mine