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· unleash the beast
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8,726 Posts
Discussion Starter · #1 ·
Ok one of my good friend bought 07 r1 and he decide to go with slip on with two brother... he told me that dealer said ...that he will gain 12 hp... is this really true? i put on my bike arko full and pciii custom map...

i know two brother are good but on a r1 slip on??
 

· No doot aboot it eh?
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1,542 Posts
The dealer is on crack....your lucky if you get 2-4 with the two mothers, their R&D is crap for power...
Most slip ones will gain you 2-4 HP, what you need to do is get rid of the cat's and get a header for your highest HP gains.
 

· [VET HNTR] Can Haz Teh Win?
2008 YZF-R1
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756 Posts
Ok one of my good friend bought 07 r1 and he decide to go with slip on with two brother... he told me that dealer said ...that he will gain 12 hp... is this really true? i put on my bike arko full and pciii custom map...

i know two brother are good but on a r1 slip on??
You might get that out of a FULL EXHAUST, but definitely not out of a slip-on.
 
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