2002 Yamaha Viper Pipe Help

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Right Now i have a Bender Triple pipes with the 3 pk silncers. Iam looking for some more sound actually alot more. lol. So if you have any suggestions what are the loudest pipes for the viper you can buy i would appreciate this input. Thanks
 

why dont you just take off the silencers and make three straight pipes to replace them. its easy to do and will make it scream. also i think it adds power on the bottom end.
 
just remove your silencers and get a machine shop to make some pipes bent to exit at the same place as your bender ones do. just do this for each pipe. if you have a pipe bender you can do this yourself. alot of the racers here do it to gain a couple horsepower at drag racing. it makes your machine more responsive.
 
Thats cool. I have an idea what about this? I take my silencers have them hallowed out no packing or pipe in it only the casing? Will this work and if it does will it take any reliabilty away from my sled?
 
you could do that but it will only cost you a $30-$50 to have what im saying made. that way you could go back if you want. but you could do that and it shouldnt affect reliability.
 
you will definitely have to rejet, i gutted my bender silencers out completely by taking out the packing and the mesh and i burned my viper down in 13 miles. i called bender they said you would have jet up big time and you would also lose power.
 
This is the farthest from the truth a thread has ever been allowed to get. You will NOT gain power if you make straight exits for your aftermarket pipes. It might sound faster, but that's all you're getting out of it. Changing the silencer affects the backpressure and acoustics of the pipe, and does not scavenge the same. You can do whatever the hell you want with your exhaust, but put it on a dyno and then tell us about the big gains you are seeing. :ORC
 
i never said that it was a big gain just a few hp.

all the guys here are doin it for the races and claim that they were told to do it by the people who they got there mods done by. sorry if its wrong i was just sayin what i was told by the people who race here. i was tallkin to a few of the people who have it done and they all said it gained power, none of them melted down. but dont do it if you dont want to i wouldnt want to responsible for someone loosing an engine. these guys are runnin big motors one has a genesis and another two has big bore polaris.
 
those pipes are custom built for those big bore engines WITHOUT silencers, they aren't a set of silenced pipes with the silencers just cut off and straight pipes added. BIG DIFFERENCE
 
YES THEY ARE!!!

these people made these silencers on there own under suggestion from the people who made there engines. they did not buy them from the places they bought there pipes. i know two of them run jaws pipes and another runs speedworx. dont tell me they bought there pipes like that when YOU DONT EVEN KNOW THEM.
 
I guess I may as well chime in on this one too. I had a silencer go bad, one of the internial baffles cracked and broke away. Sounded cool at idle and off idle for about 5 minutes! It didn't make any more power, shift RPM's were the same. As the day's ride went on, it got old real fast. My right ear was sore for 3 days, and it wasn't as loud as some race pipes.
The pipe builder engineer's a pipe to operate with a certain amount of back pressure. If you change that back pressure, then you"ll need to change the pipe chamber, and/or outlet to regain any lost power. Sure it may "sound" faster, but is it really?
Then there is the issue of loud pipes closing riding area's. IMO, do yourself and your riding buddies a favor. Keep it quiet, we dont need to loose anymore riding area's then we all ready have.
 
Changing your exhuast in anway changes the performance of the motor. I had a mbrp trail can, damn sled would rev 8500 when cold but once the pipe was warmed up it would only rev 8100, put the stock back on and it revs 8500 night and day no matter what the temps are.(I ride from -5C down to -40C)

Also on the whole exhaust issue: You need a certaion amount of back pressure to setup a resonance in the pipe. You need this because in your power band the resonance starts to act like a supercharger on your motor by helping to scavange which then leads to more uniform intake charge and so on. You could change your pipe or can but it then changes this resonat frequency which means finding your new power band, so then you have to reclutch and rejet. Imho it is not worth the hassel. I have clutched mine and gone back to stock exhaust and i still beat my friend's 800 down the lake so I am happy and I a quiet.
 
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