They claim to be making the most H.P. but I dont know of any proof other than THEIR dyno.(biased possibly?) I have two race bikes,13-1 cam,ported,fcr, and have DMC and Curtis Sparks X6 and I am going to switch DMC to Sparks too. So what do you guys think or know? Also make a offer on the DMC its five months old.
I paid $500 and will take highest bid. I think the sparks is worth a couple more H.P. for big bores and high compression. Mines a 426.
Bottom line is if its better than Sparks I want one and will have one!
The Sparks is quiet but throaty when opened up. Very nice sound, like a V8 car going down the drag strip. But idles pretty quiet. Gt says their pipe is loud.
Let me know people!