immy
veteran
Reged: 09/11/2006
Posts: 1350
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Got into a heated debate last night with some guys over the benefit of fitting a Full system(header pipes-central pipe and exhaust pipe/s) My stanch on the issue was that the financial outlay far outweighed the extra bhp that the system may supply-my point was that in racing circles an extra 10th of a second meant pole or not,so yes a full system was beneficial. So fitting one when you just rode on the road seemed an expensive and pointless waste of time-the same went for the guy I argued with. He does about 70% road and 30% trackdays but the trackdays are not timed and not competative yet hes just shelled out 1500 quid for his 04 R1s new Akrapovic Full tit system + 250 on the PC. IMO a waste of money (he argued That I was getting a Full yoshi system on my bike-but then I told him its free-and besides I told him I wouldnt notice the benefit as I only do around 3 or 4 whobbly trackdays at the same time as him and at the last one we went face to face on(when I had the GSXR 750 with the half Gianneli system I was told I was only .8secs slower than him)So Have I got this right or is it a question of the jury being still out?
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Jon_Melson
member
Reged: 28/09/2008
Posts: 100
Loc: Essex
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I think you're both right.
For most of us we won't notice a little extra power- especially on an R1 which already has plenty. We've all been overtaken by quicker riders on slower bikes, so that last 0.5% a full system gives won't do much.
But....
A full system saves loads of weight, obviously does give more power and with a nice fuel map makes the bike more enjoyable to ride. Plus the pride/bling factor!
I don't think we should begrudge someone who wants fancy trinkets (and can afford it) as this is their hobby/sport/interest.
Just nice if they're man enough to hold their hands up and admit in the majority of cases it's 'because they want it, not because they need it'.
PS I have a full system and PC111, and still get my arse kicked on a regular basis.
PPS I used to race cross country mountain bikes. That's so much worse for tech as you get a fit skinny guy on a £300 Halfords bike kick the arse of a fat bloke on a £5k full suspension bike at virtually every race!
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chappers
Carpal \'Tunnel
Reged: 31/12/2006
Posts: 6701
Loc: Mind your own business
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I think on modern bike with cat that can't be removed or has a restrictive box under the sump weighing 4-5 kilos a full system has it uses as it will release the full potential of the engine, I gained 7 just mapping the exhaust overall I'm guessing 10-11hp and a shit load of midrange and saved around 7 kilos(about 53,000 calories of exercise) now divide that by cost £1100 you are getting about £100 -£120 per hp which is about right although Titanium isn't always the best way to go unless you want to save the extra few pounds. (equivalent to taking a shit before you ride) my Ti system cost £175 more than the SS akrapovic.
On a bike other than the ZX or 2006 on R6 say the GSXR600 where the silencer box and Cat bolt on a slip on is more than adequate and a full system isn't really benifical unless you want to race at a high level.
TBH on an R1 a Y peice and slip on system would have sufficed but it's his bike and his money.
I've added my dyno chart for my bike sadly no STD reading as I had a broken leg.
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Say what you think and think what you say.
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BigHam
veteran
Reged: 12/11/2006
Posts: 1420
Loc: Letchworth, UK
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If he can afford it why not.
Even club racers could win races with a standard exhaust system, so for the other 90% of us it isn't necessary. If people want to do it, that's up them.
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Where there's a will and Gaffa Tape there's a way!
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immy
veteran
Reged: 09/11/2006
Posts: 1350
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Thanks for that peeps-the debate was about the benefits(or not) Thats why I kept being pikky pikky at him cos he wouldnt admit that it was the bling/I can afford it etc Factor-he went bla bla this and bla bla that-despite about 8 of us saying "Cumon Magzie-thats bollocks you only wanted it cos it looks bloody good and sounds tasty  I gonna whip his arse the next time we,re out 
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