No More Cat Delete for Me

[donhy]

I took off mine as well, i loved the sound but couldnt stand the smell of fumes. Dont want to take chance inhaling fumes for thousand of miles.

 

[BajaRon]

Ron--I agree with you also--somehow find how much restriction is caused via the Cat & match it with a baffle--however the fix also needs to eliminate the annoying noise--it's at one of those frequencies that really irritate. The noise isn't bad at 45 mph but getting to 70 mph & above--just cruising with freeway traffic--turn off the radio--can't hear it anyway & I could live without the radio but not that noise frequency.

Droning or a raspy exhaust note are definitely out for me as well. I'm dealing with a completely different animal in the 998 where the cat was in the muffler. So I can't personally speak to the 1330 cat delete issue. I can say that I am very happy with the Yoshimura I have been running for about 20k. It is the culmination of my efforts and my 4th muffler choice to get it right. I have the baffle/restricter in, but I am sure it still flows more freely than stock. It also weighs a lot less. I forget how much less. I think the sound is great. Light throttle and cruise are repetitively quiet and quite nice. WOT sounds very aggressive, but not harsh.

I am still dealing with a bit of pop when I open the throttle slightly during decel. I haven't quite figured out if it is too much or not enough fuel doing this.

Finding the right combination can be difficult. And everyone has a different idea of what the right combination actually is.

 

[fatboy]

i have stage 2 flash i am running cat delete with baffle and the stock can not to loud just enough i have been 120 mph on the highway and there is more there but ran into traffic the performance is awesome 16 f3 limited triple

 

[308gunner]

I noticed that all the people here with the cat delete was running a straight pipe..WITHOUT a resonator..that's the difference between RLS and the others..lamonster..two bros....hmf.....so when you're running between 75 And 85 mph..you don't hear the drone noise...it's a little louder.....but....it's deeper...with no additional baffles....that resonator is very important....which is also
on your car/truck....to remove the drone noise....I had a straight pipe....and got rid of it...a straight pipe with baffles is not enough... again a full resonator is what's needed..it does matter.

 

[akbash]

I also run the RLS and Akrapovic Sinister and stage 2 nice deep tone too it. Even at speeds 80 plus cruising I can listen to music and talk to friend on Sena. If you go full throttle it does go loud but it does not hurt ears. Driving normal it’s not loud just deep sounding.

I took off RLS today and installed stock cat with sinister really tones sound down not as deep sound I have with RLS.
With stock Cat on it does not give me more bottom end like other people say it does. It actually has a bit slower throttle response. Also slower throttle mid to upper rpms.
More heat on legs and engine runs hotter notice my fans turning on while driving through neighbour hood. Only in the low 70s tonight.
If you want real quiet keep your stock Cat on and go with stage one stage 2 will run hotter with Stock Cat on.

As for smelling fumes with delete pipe I only smell fumes that are coming from the bike in front of me not from mine.

 

[troop]

I have the Stage 2 upgrade on a 2015 F3's. I initially tried the Cat Delete from one vendor with poor low end torque on the stock ECU. After the Stage 2 upgrade many had stated their performance was great. It's been very hot mid 90's degrees thus it may not be totally fair, But my 2015 F3's has better torque off the line with the Cat installed. BTW I've read several people state the Cat weighs 30 lbs. Mine weighs 17 lbs.
The absolute worst part of the Cat Delete is the noise on the freeway at 75-80 mph. I could not tolerate a long drive with this obnoxious blaring in my right ear. Couldn't even hear my audio system. I have the Chrome Akrapovic Straight Shot Muffler .

On the positive side I had 2 different style spring hooks--the wire based spring hook from Doc at Roadster Restorations is the Best. The straight bar hook is not good for the two harder to reach springs. Also a suggestion from "ZUMI" to tie a strap to the spring hook & use the leg for strength in stretching the spring was Excellent.
I ran this Cat delete pipe without any baffle. Now I have my 2nd Cat Delete pipe up for sale for $165 including shipping to 48 states. This Cat delete pipe has 50 miles on it-thus almost new & comes with the bar type spring hook & a baffle that has two opening options.

PM sent Sunday re: cat delete pipe.

 

[Wildrice]

I was wondering about droning sounds. I see that to OP is using a Akra exhaust. I was/am considering the cat delete with my OEM muffler. Can you share details with your cat delete pipe thru a PM ? Thx

Msg's sent to you PM. Darrell

 

[Wildrice]

How does it run?..with the cat back on with the stage II and the straight shot pipe?...as in take off?

With the Cat back on---It's back to a fishtailing take off. wanna save your rear tire--install the cat delete pipe---so many have claimed positive results--not me. I remember buying a Screamin Eagle Harley where the previous own gutted out the baffles. It would not run below 45 mph in high gear. Replaced with new mufflers & it would accelerate--Slowly from 25 mph in high without any motor hiccups. It all depends on the motor's needs, I had a turbo Hayabusa that I could take off from the stop light in 6th gear--revving & sliding the clutch some. It was geared for 220 mph. Maybe something is different besides the 1330 engine on the 2015 F3's .?? But I feel it's unlikely.

 

[donhy]

For me Stage 1 with RLS cat delete best peforming combo. With Stage 1 and cat in place the low end torque was suffering. I hated the smell of fumes so i put back the cat. But was missing the sound and power so I put the cat delete back on but removed the baffle and i find it has improved the smell but it's still there.

 

[Wildrice]

Unbelievable the different results from the similar setup....... Also on the fumes--something may be wrong or a extremely sensitive nose. I never smelled any difference while idling & above 20 mph the Spyder would be out of range before the exhaust emitted. Maybe my nose has gone the direction of my eyesight:dontknow: Darrell

 

[donhy]

Unbelievable the different results from the similar setup....... Also on the fumes--something may be wrong or a extremely sensitive nose. I never smelled any difference while idling & above 20 mph the Spyder would be out of range before the exhaust emitted. Maybe my nose has gone the direction of my eyesight:dontknow: Darrell

Are you running lamonster cat delete or RLS there is a big difference.As for the smell i checked that there is no leaks on the joints and as soon as i put the cat back smell is gone. Some people love the smell and may not notice its there or you may have a good full face helmet.

 

[308gunner]

Are you running lamonster cat delete or RLS there is a big difference.As for the smell i checked that there is no leaks on the joints and as soon as i put the cat back smell is gone. Some people love the smell and may not notice its there or you may have a good full face helmet.

The resonator on the RLS makes a big difference..

 

[johnsimion]

This is true per Federal emissions law. If you live in an area that does annual emissions testing, easy enough to swap around.

It is the law, however, as jcthorne points out, nobody tests and thus you can't get caught. So, go ahead and cheat. And why not? We're Americans, we cheat on politics, taxes, welfare, you name it. We don't fix stupid laws, we just disregard them. We don't enforce ANYTHING anymore even if it does make sense. I mean heck, we have someone whose name and icon make him/her appear to be a Wisconsin State Trooper, and he/she acknowledges the law and actually advises you how easy it is to "swap around" so you don't get caught while breaking that law. How much more legal and ethical can you get than having a law enforcement officer advising you how to evade the law? Say, I'm a few dollars short this month -- does anybody have any handy tips about how to avoid getting caught for armed robbery? Maybe I should check out the banks in Wisconsin ...

So what the heck, go ahead take off your cat. Then go wave the flag like a true patriotic American.

 

[troop]

True enough, WSP retired. That said, yup, I tend to violate federal emission laws by changing the majority of my m/c exhausts. Like everything in life, you take chances on a motorcycle, whether it's wearing a helmet/exceeding the speed limit/modifying exhausts-ECU's-Power Commanders/etc. If I get caught, I pay the price. If I ride down the road on my BRP product, do I wave the U.S. flag, or the Canadian flag ? But, I don't plan on robbing any banks. Heck, you'd get caught in Wisconsin

 

[QuadRAGIN]

Im running CAT Delete pipe with no baffle and stock silencer I have no drone at any speeds, I average 65 mph Daily and on the freeway running 80 I get more wind noise than exhaust, and as far as listing to the stereo well that's another topic all together with the 2018 new BRP connect system.. to me the most disappointing thing about my Spyder, the speaker popping and crackling is ridiculous!
Im wanting to get the two brothers silencer.

 

[Rharris]

I had Monster do their stage 2 tune and I ran it for 300-500 miles before doing a cat delete. I don’t have a baffle installed in my Lamonster cat delete and took it out for the first time today. All I can say is WOOOW!! The machine has come alive! It’s a little loud, but the extra noise is well worth it to me! I can hear music just fine using in-helmet speakers and Cardo system.

 

[SteveMindi]

My 2018 F3-T has the catalytic converter removed and runs a Akrapovic exhaust. I have removed one of the two baffles. Definitely louder and deeper than stock. My wife follows me with her 2019 RT limited and says it is definitely louder than stock but not objectionable because of the deeper tone. I have not noticed any low end torque losses. The Spyder gets up and runs, easily hitting 80 or more on an on-ramp when I feel “the need for speed.” I plan to remove the catalytic converter on my wife’s RT but will keep the noise down by putting the baffle in the replacement pipe, which comes uninstalled with the replacement pipes I have checked out so far.

Missouri requires safety inspections after the bikes are over 5 years old but no emission checks on any vehicles.

 

[RLS Exhaust]

Was it one of my Cat deletes? I'm known for making the Quietest cat delete option. With a built in Resonator rlsexhaust.com

 

[RLS Exhaust]

The resonator really matter's if you want it to have a deeper tone and your not wanting to be really loud .
The smell and fumes from some cat deletes are due to them not having enough back pressure to burn all the fuel in the cylinder before the exhaust valve opens letting that un -burnt fuel to pass right out the exhaust pipe.
Those fume them tumble right back on you then you show up at the restaurant spelling like a gas station .
With The RLS Exhaust Cat delete you actually receive a baffle in the box that is similar to a catalytic converter it is a substrate baffle . similar to the oem but the RLS Exhaust cat delete flows better and if you are using stock tuning i recommend the substrate baffle when using a ECU flash in most cases you need more flow and i would not use the substrate baffle the resonator baffle is adequate .https://rls-exhaust.myshopify.com/search?x=12&y=12&q=cat+delete

 

[krakum1967]

Straight pipes are the devil. I cant see how you are blaming a NOISE factor on the Cat Removal when you are running a straight pipe, you need to add a torque cone or some other type of back pressure device on most modern metric machines, even when I ran "straight" pipes on the Vulcan 1500, I had internal mufflers welded into the "Straight pipes" to add torque. And as far as saving the air for the kids, keeping a well tuned engine is the key to good emissions whether you have a CAT in place or not. I always watch for water in the exhaust, if I am getting a good amount of exhaust created water on the machine, I know my tuning is good. When I had all stock systems in place on the Can Am, no water drip from the exhaust. Now that I have it tuned, mapped, and tweeked to my standards, I am getting moisture in the exhaust, AND much better mileage. The restrictions of CATs on a motor can be very detrimental, especially if your tuning goes south. Thats just my opinion.