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2013 crf 450 stock exhaust

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Has anyone had there stock 2013 remapped useing stock exhaust? I had mine mapped with a drd pipe and I swear it feels better with the stock back on it

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MXA recently did a pipe shootout or I might be confusing that with a DrD hop up article I read somewhere else. If I remember correctly the DrD was one of the weaker power producing pipes. Worse than stock.

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Yup.  The DR.D exhaust will produce less power than the oem.   I found this out back in 05 on that yr. model as I tried one & it felt mellow in comparison to the oem.  Later seen a dyno run on pipe comparisons & confirmed what I felt.   It hasn't changed much thru the years I've seen a couple more pipe shootouts showing the oem as being a better overall pipe.        

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Does that exhaust flow less or something? Have a spark arrestor? Odd to make less power unles it's a sparky. If it flows less and the map was richened it surely would feel better with the stock exhaust put back on.

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I know gimp I should have listened to ya. Would they take a drd on trade? :) I had Eddie remap it with the drd on. Yet it feels like it revs longer with the stock. Maybe it's just me

Edited by motoman610

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Has anyone had there stock 2013 remapped useing stock exhaust? I had mine mapped with a drd pipe and I swear it feels better with the stock back on it

 

Look at the bright side.

Your ass is pretty intelligent. It confirmed what it took a very expensive dyno to prove.

You can now hire yourself as a human dyno...

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Look at the bright side.

Your ass is pretty intelligent. It confirmed what it took a very expensive dyno to prove.

You can now hire yourself as a human dyno...

well I wish it could get back the 600 bucks it cost for the pipe. Owell it may work better somewhere else or a different track or something

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Well after riding this weekend and switching pipes( I don't think my friends were impressed), the stock does rev longer but the drd has more of a free revving felling. I wish that I could get the drd to have that punch right off the bottom. But other then that it's a ok pipe. It still takes alittle clutch with the stock pipe in deep loam to pull third In corners, where as the drd didn't . All in all since I bought it I will run it. I don't put much stock in mag reports, mxa did do a good right up on the pipes. But when you ride at glen Helen., I bet the drd doesn't feel good at all. Man I wish I had all the different pipes to try( and someone else to change them out)

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MXA's test never mentions getting a remap with any of the pipes.  I put a full Yoshimura pipe on my 13' CRF450R and it lost most of it's bottom end and ran just ok everywhere else.  I sent the box out to Eddie for a remap and it was a whole new bike.  My friend has the same bike with the same pipe and no remap and we test each others bike back and there was a remarkable difference between the two.  This bike needs to be remapped with any pipe, and MXA fails to even mention it.  I don't know how they can claim to even know what they are talking about.

I like Dr D's stuff.  I don't want a bike that hits hard, I like smooth better.  

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