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Catalytic Converter Removal

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Old 03-30-2012, 11:48 AM
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Default Catalytic Converter Removal

I am not including the guys name so I don't get flagged with.....





.... And I already know that.....






But here we go....


Me, and my two riding buddies, just had our CC's cut out by a guy out in west Houston, and he does a GREAT job. He does NOT cut the pipe in half.... This way, there is not fittment issues going back together (too short, or welded back at an angle)


He cuts a widown in the pipe, removes a section, and uses an air chizzle to get all the crap out.... Then welds the widow he cut out back on.

He does super clean work, and it takes about an hour. He charges $100, but don't think if you bring him 10 he'll cut you a deal, he won't, we all 3 tried haha


It is $100 per pipe, take it or leave it. We are all 3 VERY happy with sound and performance after removal.


If you want his info, PM me, and I'll send it your way.


Thanks!!!!
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Old 03-30-2012, 12:05 PM
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After you gutted the cat., did you install a different air cleaner or do a download or add a tuner?? I'm interested in guttin' the cat. on my 2011 EGC 96'' engine and wondering what needs to be done after that in the way of tuners, downloads??
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Old 03-30-2012, 02:19 PM
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That I don't know, probably should ask Harley about that.

I am 100% stock exhaust right now (minus the CAT).

I plan to put on a high flow filter, and slip ons next week, then go do a download......
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Old 03-30-2012, 03:47 PM
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Thanks, CHL
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Old 03-30-2012, 04:19 PM
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Everything I have read here to date on this subject suggests that:

1) removing the cat does not require any changes to A/C or exhaust;
2) any tuner is NOT required (but may be recommended);
3) the Harley Stage 1 download is worthless
4) there is little, if any, performance gain by removing just the cat.
5) sound is subjective
6) there MAY be less heat and therefor some comfort improvement.

I think FuelMoto posted up some dyno results of a run both pre-removal and after removal of the cat and reported the cat made little or no difference in the results.

I know from the photos it appears that hardly ANYTHING could flow thru that metal honeycomb but I think I read where it present little if any obstruction to air flow.

There, a lot about something I know very little about.
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Old 03-30-2012, 04:29 PM
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Quote:
Originally Posted by one-up View Post
After you gutted the cat., did you install a different air cleaner or do a download or add a tuner?? I'm interested in guttin' the cat. on my 2011 EGC 96'' engine and wondering what needs to be done after that in the way of tuners, downloads??
You'll get a lot of answers to this question. My friend has a bike shop. I removed my cat and had him tig weld back together. No fitment problems. I asked him if I should do some kind of a fuel management since I already had put on V&H slip-ons. at this point he told me the bike runs lean from the factory to meet EPA guildlines, it would be a good idea to. I was doing a SE air cleaner with K&N open Filter anyway so I bought a FuelPac from V&H. Bike runs great and a lot cooler. very happy I did it.
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Old 03-30-2012, 07:06 PM
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The heat on my right leg was UNREAL, and my GF was complaining that her right thigh was so hot, she couldn't take it anymore. My bike was a week old last September, and we cut the Cat out. Sure, it was 85-90 Degrees out then, but the HEAT from the CC sucked. After we gutted the Cat, the heat was GONE, and even the Stock Slip On's sounded decent. I did mine the same way, just cut a window out. I took off my pipe here at home, and my buddies neighbor used the same method and Tigged it closed with Stainless Steel.

I've done some upgrades since then, but I'm still running my stock head pipe.

You can read up on it here:
https://www.hdforums.com/forum/touri...with-pics.html

Last edited by ACLazer; 03-30-2012 at 08:28 PM.
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Old 03-30-2012, 08:21 PM
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Quote:
Originally Posted by hoethree View Post
Everything I have read here to date on this subject suggests that:

1) removing the cat does not require any changes to A/C or exhaust;
2) any tuner is NOT required (but may be recommended);
3) the Harley Stage 1 download is worthless
4) there is little, if any, performance gain by removing just the cat.
5) sound is subjective
6) there MAY be less heat and therefor some comfort improvement.

I think FuelMoto posted up some dyno results of a run both pre-removal and after removal of the cat and reported the cat made little or no difference in the results.

I know from the photos it appears that hardly ANYTHING could flow thru that metal honeycomb but I think I read where it present little if any obstruction to air flow.

There, a lot about something I know very little about.
The only difference I noticed was the sound got louder and when I go to pass at hi-way speeds I no longer need to downshift to fifth. It did lean it some but a VIED took care of that for me.
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Old 03-30-2012, 09:09 PM
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Quote:
Originally Posted by hoethree View Post
Everything I have read here to date on this subject suggests that:

2) any tuner is NOT required (but may be recommended);
3) the Harley Stage 1 download is worthless

There, a lot about something I know very little about.
First, what it does suggest is that many that post here like to buy tuners. If downloads didn't work, the sales would be really low and many dealers would not waste their time to perform them.


Next, if you look at number two and three, they contradict each other.
As for number three, it is just your opinion, and I disagree.
I installed the A/C and mufflers before I took my RG down to have the Stage 1 download installed.
When it was done, I noticed a slight improvement in performance (My opinion).
But what is not my opinion is the increase in fuel mileage. It increased 4 MPG over before I had the download installed.

So to say the Stage one download is worthless is incorrect, and just your opinion. And then to say you recommend a tuner makes no sense. A tuner is just a different MAP from the stock MAP. There are Factory Harley tuners as well as aftermarket ones. So any Tuner, or just aftermarket tuners?
For you to recommend one over another (rather than to just state your results) must mean you work for, or make something from it? Or you just need to justify your purchase of one instead of just a download?

But, again this is just my opinion.

Last edited by Ultra89Rider; 03-30-2012 at 09:16 PM.
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Old 03-30-2012, 11:07 PM
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My bike was a different bike after the DL.

THAT SAID: You won't need it if you're only doing the pipes/mufflers. And definitely do the cat first -- You might decide to not even bother with the AC.

But you might...
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