Mickyboy wrote:Couldn't wait any longer for a listen. I've bitten the bullet and ordered an x-force mid and y pipe from best mufflers.
Hopefully they'll arrive and go on the Lib on Thursday.
That will make one more Sti quads/xforce centre combo in Melbourne.
SegR wrote:What diameter are the xforce centre & y pipes?
SegR wrote:So why change them? (different/no resonator?)
Mickyboy wrote:Installed my new xforce centre and y pipe today..... Niiiiice!
Slightly deeper note and as mentioned earlier in the thread, about 10-30% louder than with stock mid/y-pipe.
I haven't had a chance to have a really good drive yet but from what I can tell the sound level has definitely gone up a notch or two. WOT and uphill the volume is right on the limit of loudness for my conservative taste. I wouldn't consider going any further with high flow cats or headers, even though it would unleash a good deal more horses, it would simply be too loud/droney for me.
BTW I'm pretty sure there IS a difference in internal diameter between the stock and the x force. I believe stock mid is 2" and y pipe 1.75" whereas the xforce is 2.25" mid and 2" y pipe internal, so it's not just the resonator that is different.
Mick.
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