curtis sparks exhaust

[atvextremerider]

Ok so curtis sparks makes an normal of big core what is the real difference?:confused:

Before they made an x-4 and x-6. x-4 was for slightly modified motors giving mostly bottom to mid grunt while the x-6 was for more heavily modified motors with a focus on mid to top.it appears they stopped making the 4 and made a 6 with bigger headers.not sure y they didnt call it x-8 or something like that but basically its the same deal.slightly modded go with standard,heavily modded go with oversize. I was just on the phone with them thursday ordering some packing for my old style x-6 and inquired about the oversized version.that was the gist of it.

[trxPOWER]

yeah, the only difference between the x4 and the x6 is the slip on has a bigger core on the x6, which you can change out.