Originally Posted by Valantino

Hello,

I'm interested in the R1 Extra STTi (with 60mm pipe), But I'm waiting for the dyno result (are they out yet?). I'm also going for there titanium Y pipe, and there HFC. and how can i tell witch HFC i get ? if its the restricted one or there new design (the higher flow ones)?

The pictures you posted the top Y pipe doesn't look like the ones below! their design are different. and doesn't the Y pipe should have a spring joint or the thing on the MINDS Y pipe (don't know the name of it) so the Exhaust system is flexible for vibration or pumps? Do they have more then one Y design for the Z34? if they do whats the different between them TQ and HP?

Don't know, but this is so confusing for me.
but for me or for the rest of us to make a decision and invest on this system. we need clear info's. and if we can have sound clips of the different variation we have here.

Thanks and sorry for my poor English.

Originally Posted by 2ZORNT2Z

Hunter, any idea what the dB rating is on the R1000? Without a resonator would it go over the legal limit? Also, any word on the weight savings for that full single pipe vs the R1 Extra?

Originally Posted by Endgame

That is what I am planning to drop on mine! Full Amuse Ti exhaust! Wish there were some sound clips of R1 and Y Pipe....