Rumor or Fact-Cobra Slip Ons

Auggie_1970 · Sep 15, 2009

Hey guys trying to decide if I want to swap out the exhaust on my bike before the end of the year. Thinking of going with Holeshots. I bought my bike months ago which already had cobra pipes on it and it apprears to have a stage one jet kit with 170 mains on it (rich). I've read as many threads that I could find about these cobra pipes. I've seen it posted that several people say they lost HP and some say they didnt. I guess my question is how factual is it when I read that these cobra pipes lessen the HP and claim that it drops it to around 90HP. If this is really true, then going with another exhaust such as Dale's would generate around 115HP (if I remember correctly) would be a really big performance improvement.

Can anyone that has had their bike with the Cobra's on dyno'd or anyone that has experience with these slip ons chime in. Thanks for your help.

gamorg02 · Sep 15, 2009

u want to go from slip ons to a whole system, right?

Auggie_1970 · Sep 15, 2009

Yeah, thinking of going with Dales system

one2dmax · Sep 15, 2009

Last dyno test with Cobra's put out a whopping 96rwhp. The crappiest we've ever officially recorded (on a bike that at least is using all it's cylinders).

Sean

gamorg02 · Sep 15, 2009

i like dale's system, altho i got it b/c of a good deal, marks is probably going to be cheaper and not a single bad review. that and morleys jet kit u'll be in business.

4gasem · Sep 15, 2009

I pulled 122RWHP with Dales pipes.

I have Marks now and prefer the sound over Dales. I think the cross over makes all the difference in sound.

Chris

RagingMain · Sep 15, 2009

Dont waste your money on Cobras. Been there done that. I should have listened to the board :bang head::bang head::bang head:

Get a full system:clapping::clapping:

unk:

unk:

4-2-1 Kerker is one of the lighest and IMHO makes some of the best peak HP. But then again I might be biased

Auggie_1970 · Sep 15, 2009

Hey Chris, how would you compare the sounds of Mark's to that of Dale's, sounds like they are both high quality from what I read. I've dealt with Dale in the past with my previous bike and he's great to deal with as far as helping you get the bike running right.

spursmech · Sep 15, 2009

:clapping:Hey, have not seen anyone break 98 RWHP with Cobra pipes. Go with something else for sure. Good Luck, Spur

Redbone · Sep 16, 2009

I don't think you can go wrong with a Kerker, Holeshot or a Mark's exhaust. You have to remove the centerstand with Kerker, Holeshots front headers follow the Vmax line very nicely, and with Marks you get that great built big block sound. They all perform well!

Auggie_1970 · Sep 16, 2009

Anyone know of any good sound clips of Marks and Dales pipes. Dales website doesnt really have a good sound byte and I read someone on this forum that said the clips don't do the sound any justice.

Redbone · Sep 16, 2009

I don't think you'll get the prper effect/ sound from a video but it will give you a comparison. Go to exhaust sounds post to hear them.
This is the video that sold me on the Mark's exhaust:
http://www.youtube.com/watch?v=k2HtxfNIywU&feature=related
It sounds the closest to the way mine sounds IMO.

Auggie_1970 · Sep 16, 2009

Wow that sounds sweet, very nice indeed. On a scale of 1-10 , how loud are these pipes. Looking for this sweet sound but dont want something overly obnoxious...Do Dales come close to this sound as well? Damm, that was nice..I'm going to have to replay this a few more times..Thanks for the info

mabdcmb@yahoo.com · Sep 16, 2009

I think Holeshot is the best looking system out there. I like the kerker sound but I wanted a dual outlet.

Here is some more info from myself and some others on Mark's Pipes.

http://www.vmaxforum.net/showthread.php?t=7635

dannymax · Sep 16, 2009

Auggie_1970 said:
Wow that sounds sweet, very nice indeed. On a scale of 1-10 , how loud are these pipes. Looking for this sweet sound but dont want something overly obnoxious...Do Dales come close to this sound as well? Damm, that was nice..I'm going to have to replay this a few more times..Thanks for the info

IMO the Mark's pipes are not obnoxious at all, like Brian said they give a low grumbly built big block sound.

4gasem · Sep 16, 2009

Yeah Dales pipes are tucked up tighter in the bike and sound good but Marks just have a better lope and rumble IMO. Dales scavenge from front to back same side and Marks do the same. The difference is that Marks has a cross over that seems to really help the sound.

For the money I would do Marks again in a second.

Can't beat Dale for service after the sale though.

dannymax · Sep 16, 2009

Chris, did you dyno after installing the Mark's for comparison with Dale's?

danny

4gasem · Sep 16, 2009

Not yet! I hope that Susan and I can get to Topeka next year to do it on the same dyno. I imagine it'll be down on power. I think Dales are really great performing pipes. If it is, it'll only be a couple HP.

Chris

dannymax · Sep 16, 2009

4gasem said:
Not yet! I hope that Susan and I can get to Topeka next year to do it on the same dyno. I imagine it'll be down on power. I think Dales are really great performing pipes. If it is, it'll only be a couple HP.

Chris

That will be real interesting to find out, be sure to keep us posted.

danny

mabdcmb@yahoo.com · Sep 16, 2009

dannymax said:
That will be real interesting to find out, be sure to keep us posted.

danny

+1 .... I'd be interested in the results as well.

Rumor or Fact-Cobra Slip Ons

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