Sparks bigcore or x6 for stock motor?

[KrazyKeith]

I want to get the most power out of the stock ltr motor without changin cams and the piston. I am just wanting to know if the bigcore will be overkill on the stock motor or will it make more power than the x6? I got my ltr today, its an 06 but it looks like it came off the showroom floor tities still on the tires. I want to order this exhaust but im unsure of wich to get so any help will be appreciated.

[atveric132]

full yosh rs-5 and take core out of it

[KrazyKeith]

you think yosh makes more power? I doubt it but even if it did I would still get sparks or rossier everybody has yosh on everything around here becouse thats whats easy for dealers to get for ppl and its available all over maybe its good but not for me.

[Drewltr450]

Dasa Rossier Sparks Yoshi HMF all awesome exhaust systems. You will be very happy with any of these pipes.

[KrazyKeith]

I got the standard sparks pipe mounted now...its not very loud but seems to work good, not as fast as I thought but maybe a power commander will help.

[spanky101]

Power commander is key imo... actually feeds the bike the fuel it needs now

[vzmain61]

Take your fuel injection off of it. Get the carb setup from Dasa along with a Dasa exhaust.