Duncan or Curtis Spark??

[300exPat]

hey im riding a 300ex and ive heard really good things from the duncan fat boy 4 from friends that race, but ive heard alot of good things about sparks t4

has anyone seen them both and would be able to compare?

[300exOH]

Originally posted by 300exPat
hey im riding a 300ex and ive heard really good things from the duncan fat boy 4 from friends that race, but ive heard alot of good things about sparks t4

has anyone seen them both and would be able to compare?

Here's the Sparks X4 with spark arrestor

[300exPat]

Yeah the both look pretty good, but i need to know how they compare by performance

[Derrick D]

I know that the Duncan is loud as hell. My local shop swears by duncan though. I think they are both really good, & one is not better then the other.

[brandonpeake]

i dont know about the 300 but i like the sparks x6 for the 400 b/c the header is ceramic coated, so thats a big boost in my mind

[300exPat]

alright i think ill go with spark then, my neighbors get pissed enough with my stock pipe