Cobra PowerPro HP 2-1 exhaust
#1
06-20-2014, 02:04 PM
Cobra PowerPro HP 2-1 exhaust
Has anyone installed this system? The price is right $440 and Ive had good luck with other Cobra pipes in the past. Does anyone have them? Likes/Dislikes?
http://www.indysuperbikes.com/produc...t=20289&page=2
Thanks,
http://www.indysuperbikes.com/produc...t=20289&page=2
Thanks,
#3
02-21-2017, 07:19 AM
Don't know have you seen this but here is some info and comparison to other pipes.
http://www.1250kits.com/ttxlexhaust.shtml#cobrapowerpro
Comments:
Packed in a lot of plastic wrap, bubble wrap, and newspaper. One of these pipes that takes a half hour to extract from the box and packing, like the D&D. Annoying. Pipe makers should look at how Two Brothers does it.
Next annoying thing was the installation. The rear head pipe comes into the collector at an angle. That makes it hard to install. The instructions say to install the front head pipe to the motor, and the rear head pipe to the muffler, then put the muffler/rear head pipe assembly into the front head pipe and rear cylinder. Well, that doesn't work so good, because when you put the rear head pipe into the collector, you don't know what rotational position it needs to be in. After 20 minutes or so of struggling and saying lots of bad words, we got it on there.
O2 sensor placement isn't terrible, but the front comes closer to the lateral link mount than I'd like, when used with long wideband sensors anyway.
The mapping dialed in without any real drama. But as you can see by the chart, the pipe isn't behaving very well before 4200rpm. Above 4200 it's a reasonably flat torque curve, but it's definitely pushing back below that.
With respect to the pipe's comparison to the reference pipe, well, the left side of the chart isn't the Patriot's strong point either, but it's at least cleaner down there. The Cobra managed to eke out a small advantage from 4200 to 5000, but then it's Patriot all the way, ending up roughly 5hp better on the top.
The verdict? We wouldn't call it a terrible pipe, but it didn't really impress us either.
http://www.1250kits.com/ttxlexhaust.shtml#cobrapowerpro
Comments:
Packed in a lot of plastic wrap, bubble wrap, and newspaper. One of these pipes that takes a half hour to extract from the box and packing, like the D&D. Annoying. Pipe makers should look at how Two Brothers does it.
Next annoying thing was the installation. The rear head pipe comes into the collector at an angle. That makes it hard to install. The instructions say to install the front head pipe to the motor, and the rear head pipe to the muffler, then put the muffler/rear head pipe assembly into the front head pipe and rear cylinder. Well, that doesn't work so good, because when you put the rear head pipe into the collector, you don't know what rotational position it needs to be in. After 20 minutes or so of struggling and saying lots of bad words, we got it on there.
O2 sensor placement isn't terrible, but the front comes closer to the lateral link mount than I'd like, when used with long wideband sensors anyway.
The mapping dialed in without any real drama. But as you can see by the chart, the pipe isn't behaving very well before 4200rpm. Above 4200 it's a reasonably flat torque curve, but it's definitely pushing back below that.
With respect to the pipe's comparison to the reference pipe, well, the left side of the chart isn't the Patriot's strong point either, but it's at least cleaner down there. The Cobra managed to eke out a small advantage from 4200 to 5000, but then it's Patriot all the way, ending up roughly 5hp better on the top.
The verdict? We wouldn't call it a terrible pipe, but it didn't really impress us either.
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