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CAT REMOVAL ?
- Thread starter mob133
- Start date
Cat Removal
My 2010 RTS was hot on long rides seems much cooler without cat. (not that hot here yet). Sound, deeper not more noise just richer. Grunt, it pulls harder on low end can feel it with trailer. What I really like is first time ever 32 MPG. OVER ALL A GOOD BARGAN:clap:
The Nip
My 2010 RTS was hot on long rides seems much cooler without cat. (not that hot here yet). Sound, deeper not more noise just richer. Grunt, it pulls harder on low end can feel it with trailer. What I really like is first time ever 32 MPG. OVER ALL A GOOD BARGAN:clap:
The Nip
bullant12
New member
I understand that Spyder1attitude (site sponsor) does it and makes a difference in sound. http://www.spyder1attitude.com/cat-bypass.html
DR Buck
New member
Removed mine and will never look back.
Eliminate most of the heat - http://www.spyderlovers.com/forums/...sults-of-Heat-Elimination-Mods&highlight=heat
flybuddy
New member
I did it also and am happy with it. Only tests about 2 decibels higher BUT sounds better. Cooler, runs better and improved mileage. I think the big issue with a lot of folks is price. If you haven't gotten up close and personal with your Cat, you'll think, like I did, that all I need to do is get up under there with some pipes, measure and weld these up on my own. Reality is that once you get into the swap you recognize how incredibly tight the clearances are under there and how several things (hangers, bolts, pipe diameters, springs, VERY exact location of 2 inlets and one outlet) have to line up precisely. Frame clearances, etc are also extremely tight. They obviously had a LOT of work in getting these pipes where they just bolt up. IMO, they are cheaper than a simple muffler swap and give better results across the board.
spydercowboy
New member
Did you guys have to add a fuel management box and do you have any decel popping?
rabtech
New member
Not that i would do this 
I can tell u from hearing how hard this is to do that its worth a pretty penny to keep from actually having to do this... And i can tell u there is very little sound difference. It is just a bit deeper.
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
I can tell u from hearing how hard this is to do that its worth a pretty penny to keep from actually having to do this... And i can tell u there is very little sound difference. It is just a bit deeper.
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
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flybuddy
New member
No, didn't have to add anything. Onboard ECM has enough range to compensate.
DR Buck
New member
DR Buck
New member
Should be easy. Only spring is on the right side and a pair of pliers worked. Hardest part is getting the center rubber hanger on.
rabtech
New member
Yes that is the inside of a catalytic converter. The red thing is the goodie part. It is NOT ceramic like the rock kind. It is sealed from one side to the other. The inlet pipes come out in the far side and then have to push back thru the red circle then it can exit. Kinda kills that smooth exhaust exit flow pattern....
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
Five-O
New member
Not that i would do this
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
Rabtech,
Did you fabricate a bypass pipe? Any pics?
rabtech
New member
Just imagine that picture without the red thing in the center and then a stainless cover welded back over it.
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
Five-O
New member
Just imagine that picture without the red thing in the center and then a stainless cover welded back over it.
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
How did you make out with the Akrapovic and suspension mods?
ulflyer
Active member
Just imagine that picture without the red thing in the center and then a stainless cover welded back over it.
Sent from my Galaxy S3. I may have made a spelling error or may have some grammer issues. My fingers are way to big to type on this tiny screen!
How the heck would one get the RED THING out? Looks about impossible.
MrLooney
Senior MOMENTS Member
rabtech
New member
You have to melt the surrounding metal. The converter is stainless. You will have to TIG it back together. Im telling you its a pain. I can't say its worth or not worth the 450 for the bypass but it would be close to it.
Also you just open the flow a little. It still has to bounce off the back wall of the cat and then find its way out the outlet pipe. Exhaust note is a little deeper. I am amazed how quiet it actually still is.
My Ducati will make your ears itch. I can tell you that straight out of the pipes that lead into the cat is way quieter than my Ducati with the quiet baffles in the Termi pipes. It must be the way the head is designed on the Rotax.
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