EXHAUST TEMP INCREASE WITH CAT DELETE??

pugpower

.020 Over
Joined
Feb 22, 2008
Messages
33
Location
Shippensburg, PA
A question for you more experienced/technical Captains:

I recently put Corbin hard bags on my R3 with stock exhaust. I've heard some captains say they melted their bags or had some heat damage issues. I have extra heat tape on the bottom of mine (I've only ridden it home from the dealer since the bag install,been witches tit cold until today) My dealer (is a good dealer) has told me they have sold several sets or Corbins on Rockets and their customers have had no heat problems. I am going to do the CAT bypass (delete) and the new tune to dress it up. Is the CAT bypass going to make the exhaust hotter, or should I say hot enough to make a problem where there would normally not be one??

Thanks,

PUG
 
pugpower said:
A question for you more experienced/technical Captains:

I recently put Corbin hard bags on my R3 with stock exhaust. I've heard some captains say they melted their bags or had some heat damage issues. I have extra heat tape on the bottom of mine (I've only ridden it home from the dealer since the bag install,been witches tit cold until today) My dealer (is a good dealer) has told me they have sold several sets or Corbins on Rockets and their customers have had no heat problems. I am going to do the CAT bypass (delete) and the new tune to dress it up. Is the CAT bypass going to make the exhaust hotter, or should I say hot enough to make a problem where there would normally not be one??

Thanks,

PUG

Removing the CAT will reduce exhaust temps.
 
Just thought of something, if your bike is a 2005 you may not have a true catalytic converter. Some early Rockets have a CAT box but there is no catalyst inside. I think it has an "N" stamped in it if it is just a box lacking the catalyst. In this case your exhaust temps are already lower than a true CAT-equipped bike. A cat delete eliminates the restrictions of the box and further drops exhaust temps.
 
Going to my dealer once I put the bypass on and getting a new tune. All I'm really after is a better sound (stock exhaust w/o CAT) and having her run right after the bypass (new tune). Heard many Captains say that Cat bypass w/stock is nice sound. Not after rattling my teeth, just a little rumble. At this point **** thing is so quiet you have to wonder if it's running!
 
well I guess I should add, once I get a CAT bypass. I'm on the hook for Warp9.9 CAT bypass once Sam has his Pred pipes done.

Thanks again for the info!

Ride Safe,

PUG
 
TnT said:
If you put the cat bypass on without the correct tune, the bike will run leaner, which will make the exhaust hotter.

I run TORs / cat by pass with a PC-III and also have Corbin bags and I have no problem, other than exhaust residue builds up on the bottoms, but it comes off with wax..

Yes, what he said. My previous post assumes a corrected tune.
 
How much clearance do you have between your bags and the upper pipe? If you have less than 1/2" you are going to have a problem. Don't wait until you do. Remove the upper pipe and loosen the lower pipe and gently rotate it out of your way, drill out your upper muffler bracket with a 1/2" drill bit and when reinstalling just hold the upper pipe down as far as it goes and tighten down the muffler bracket bolts, that should give you enough clearance. I also put a little extra Cool Tape on the bag just above the pipe right behind and next to the Corbin applied insulation and mine's fine now.
 
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