GPR Exhaust

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Alfatango1

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Nov 2, 2009
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Anyone running a GPR exhaust on an 1125? I see they are made in Italy and around $399 shipped on Ebay.
 
If it's this one, I doubt it will make much in the line of any power over stock. Know why? The tubing is too small.

Betcha it collects rain water pretty good though.

385926516_tp.jpg
 
That one looks horrible, they show a slip on pipe only on Ebay for $399 that looks way better but I just realized it is not for 1125's

HMF makes the slip on but I think it needs a section of pipe, but according to the listing it has all mounting hardware.
 
some body tried to copy H.P.E.which i would kill for just for the looks.But i think i will buy somthing from dean i just want to know is it to loud for the street?? I want 150+RWHP HOW DO I DO THAT..[smirk]
 
I want 150+RWHP HOW DO I DO THAT..

Higher compression, timed cams, pipe and ecm.

Just the pipe and ecm should put you at 140+ depending on where you start at in stock trim. EBR's bike hit 143 with an RT-3.

As far as loud goes, that depends on your definition of "too loud" and what you're willing to live with. 99 db at idle (according to some people) is pretty loud, 112 db at 4500 rpm. Dunno what it is at WOT, but it is not a quiet pipe for the faint of heart. I've been told it can be heard up to a mile away.
 
the gpr has to be the worst looking pipe out there,
the hpe is stupidly loud also.
someone asked me to quieten one down and i thought i'd take a look as they are supposed to be the 'rolls royce' of exhausts.
i don't really blow my own trumpet much but mine are better quality
 
Puzzled, I'll get back to you on that. Sounds like a good pipe. Our investor who actually owns the bike may do a home made hack job on the stock pipe. If it doesn't work out the way we like we'll order something.
 
How much for shipping of the Barker to Australia, 4510?
I'm after the black powercoated one.

Cheers
Scott
 
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