Bender single Pipe for Viper?

VIPDHEMI

VIPDHEMI

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Dec 26, 2006
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St.Clements Ont.
A few weeks ago there was a single pipe for a Viper made by Bender on E-bay. Since the Bender site has been down for awile I haven't been able to verify that Bender makes a single pipe for the Viper. I was wondering if anybody knows if Bender actually makes a single Pipe for the Viper and if they do is it a stock replacement or is their performance to gain. I could definitly be interested in a single pipe since the tuning of the tripple pipes scares the crap outta me.I would think that the single pipe would be eaiser to set up for my machine. Anybody Know?
 
Yes they do and from what I've heard, not much of a gain. Mostly just weight savings.
 
VIPDHEMI said:
A few weeks ago there was a single pipe for a Viper made by Bender on E-bay. Since the Bender site has been down for awile I haven't been able to verify that Bender makes a single pipe for the Viper. I was wondering if anybody knows if Bender actually makes a single Pipe for the Viper and if they do is it a stock replacement or is their performance to gain. I could definitly be interested in a single pipe since the tuning of the tripple pipes scares the crap outta me.I would think that the single pipe would be eaiser to set up for my machine. Anybody Know?
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www.mountainperformance.com I believe still has it in stock?
 
Well thats good that pipe should cancel out the horsepower I lost when I put my can on.Probably a one size bigger main jet and raise my needle a notch and that should be a good starting point for tuning. That web site "viper48" has all sorts of "goodies" I can only imagine the countless hours I will be staring at my pc drooling at sled parts. lol
 
I have the bender 4x4 and can. I cant say that i noticed any difference in power either way. The weight savings is the real gain. Plus it sounds awesome now, not loud but beefy. I am definitely happy with it.
 
MtnMax600 said:
I have the bender 4x4 and can. I cant say that i noticed any difference in power either way. The weight savings is the real gain. Plus it sounds awesome now, not loud but beefy. I am definitely happy with it.
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did you need to Re-jet after you put the pipe on?
 
The pipe on ebay sold on 1-31-07 for $152.50. All cans lose power on the Viper. Been there done it and tested them in the field against another stock Viper. I saw big losses in performance. Not many people have tried the single, but what I heard is you have to run it into your stock can.......not into an aftermarket can.
 
journeyman said:
The pipe on ebay sold on 1-31-07 for $152.50. All cans lose power on the Viper. Been there done it and tested them in the field against another stock Viper. I saw big losses in performance. Not many people have tried the single, but what I heard is you have to run it into your stock can.......not into an aftermarket can.
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I would have bid on that pipe what a great deal but the guy wouldn't ship to Canada and I had a feeling it wasn't for a Viper you know how some E-bay deals can go. I didn't notice any power loss with a can but I also didn't notice any gain either.But if you have to re-jet doesn't that mean there is more power being made because the part your adding is changing the "tune" of your engine.With the single pipe do you need to do the head Mod.I'm just a little reluctant to buy tripples (which would be Aaens)since I don't want to mess with the reliability, but if I have to do as much work for the single pipe I might as well put the tripple pipes on and gain the 20hp.
 
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I think you would be better off gutting your stock pipe, cut it open at the welds the gut the inside and re weld, thats preety much what the 4x4 is.
 
You can do so much with traction, clutching and head compression that the single pipe thing is a waste of time. As many people have heard ,mine runs very strong. Check your compression on each cylinder. Mine is 128/143/143 starting at the clutch side. I know that's the key to why it runs so well. Many guys have much lower stock compression. If yours is lower, I'd split the headgasket. If you can get it close to mine, there's no reason it shouldn't hold together running premo gas. Also I run Heavy Hitters in the clutch and they have been absolutley great. Once I got it dialed, I never have had to mess with it since. It is very consistent.
 
I went with the Bender 4X4 and SLP can. The idea was to shed weight and I lost over 40# by dumping the OEM exhaust,suspension, and skis. I took my sled back to the shop after the mods for a tune up and they found my jetting was the same all the way accross (dealer set-up :o| ) so they did the fix which made a BIG difference in power. Based on that, I can't say if the pipe and can did anything for power gains as claimed, but the weight savings was well worth it! I didn't have to re-tune EVERYTHING like you would for tripples, and it sounds like a brute (deep tone, not real raspy). My 05 Mountain Viper 144 definately out-powers/pulls my wifes 07 RS Vector 151 (120hp), no matter WHAT the snow depth. I know the weight difference is about 120#, but you can REALLY feel the power difference between the two. All my riding is above 8000ft, so the only way the Vector could get near me is if it had a turbo or SC.
 
I've discussed this every year about exhaust cans on the Viper. I tried 3 different cans (SLP, MBRP and Bender) on my Viper a few years ago. I have another stock constant Viper to run against for field testing. All three lost significant performance on my stocker to the tune of SEVERAL sled lengths in 1000' runs. It was quite obvious when I put them on when my RPM's dropped instead of going up like they should with a power gain. Everyone hear says" I didn't notice a power loss"..........well I proved it. You can't just ride it and think everythings OK without doing some realworld testing. Obviously Yamaha did their homework on these things with the stock exhaust. Only way for a significant gain as for exhaust is triple pipes. Not everyone wants to deal with the extra hassles though. I guess I would one of those people myself. Been there and done the triples too. Stock is so headache free when you are a long way from home.
 
Journeyman,

I hear ya, but I did the swap for weight savings, not necessarily power. I don't remember who did it, but one of the tech shops did a dyno on the Bender 4X4/can set-up and found a 2+hp gain. Their point was that it did not do the 4hp gain that Bender claimed, but was closer to 2+. I'm with you though, since I didn't have a power issue I did NOT want to start down the endless path of testing/tuning/burn-downs trying to set up the tripples. I wanted simple, reliable, and lighter. The Bender 4X4 is basically a gutted Yami pipe.... so did you have them coated or heat-insulated? Or do you think it's a lack of back pressure causing the drop in power?
 
VIPDHEMI - I did not rejet after the pipe and can. I had heard that it was not necessary plus I was a little on the fat side before so i wasnt too worried. The thing is an animal now, maybe its in my head but I feel the throttle response is better now with the 4x4 and can.

I am with Mtn-Track about the weight. I took it off and put the boss seat on for a significant weight savings. In the steep and deep, weight can make a big difference.
I have thought about triples but dont want the hassle and mpg drop and reliability issues etc.
 
I think it's more of a back pressure issue. One guy on here a year or so ago said he had the Bender single and can and it seemed a bit slower in his testing. He tried the can only with same results. He then tried the Bender can into the stock canister and found it to be a bit quicker. That's just one persons findings. Yes the stock pipe itself has some baffles in it for quieting.
 
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