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Post by deftone on Dec 21, 2019 7:04:35 GMT -7
So I bought a cheap Delkevic (used) and was pretty happy with the sound and appearance.
Sent my ECU off to 2WDW and noticed a big difference in power.
However, there was this noticeable and slightly annoying dip in the power dellivery between 6 & 7K rpms.
Possibly due to the step in the Delkevic's mid pipe as pointed out by another forum member....
Found a Yosh 3/4 system here on the forum.
Looks different than most Yosh systems but I figured I would give it a try.
2WDW dyno for the Yosh looked good, and no dip in the power band.....
System sounds good. It came with a db killer, like the Delkevic, which I use in both systems. IMHO the Delkevic sounded a little better but I prefer the tone of a CF can.
Finally got a break in the weather and a chance to take the beast out for a test run. Happy to report that there is no dip in the power delivery at all, very smooth and linear like the stock power band, just a lot more power. Makes wheelies a lot easier than with the Delkevic. Please note that I did NOT send the ecu back to 2WDW for a re-flash. I don't think it needs it.
Very happy with the results.
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Post by clayton on Dec 21, 2019 7:24:28 GMT -7
This the the yoshi system 2wdw used to get those numbers on the dyno, not the one you posted. It’s a 3/4 Yoshimura Alfa T exhaust. I love the way mine sounds and performs and the mid pipe really hugs the frame.   |
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Post by deftone on Dec 24, 2019 6:07:16 GMT -7
This the the yoshi system 2wdw used to get those numbers on the dyno, not the one you posted.
I thought that was obvious.
I actually can't stand the conical shape of the Alpha T muffler, I would have went with something different. This version looks much better and I got it cheap.
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