Out with the CBE in with the TBE

dronizm5

Member
:
2008 Black Mazdaspeed3
So now that I cancelled my order for a Borla CBE I was wondering if anyone who has a TBE can recommend one for me. I have looked at the Cp-e, vibrant, and there are a few others. I am kinda on a budget but am looking for the most reliable for the best price any suggestions will help hopefully I get some good feedback. Also can you also tell me if after you put the TBE on whether or not your MS3 started smoking. Again thanks.
 
if you dont have emissions go with the corksport downpipe/test pipe and i think the mazdaspeed catback is a great pair with a downpipe. im running the cpe catted downpipe and mazdaspeed catback. give ken a call over at protege garage hes seen every tbe im sure.
 
i would say Cobb but thats kinda unpossible anymore. Atleast I have one! muahahahaha!!

not necessarily ;) i found one and im about 75 away from being able to order it

back on topic, if you like the sound of the cobb checkout the corksport cbe with a cpe or cobb dp..also the vibrant dp back with a corksport or txs sounds pretty nice too.
 
I have turbo xs dp/tp and hks cbe and i love the way it sounds!As far as the smoking it only does after a long/hard down shift and only for a few seconds.
 
if money isn't an issue, id go full cp-e. if your in a tight budget, get the hks cbe with the stainless works downpipe
 
There are lots of options listed above, all of them good.

I went with the TurboXS "Stealthback" because I liked the stock CBE, knew it had excellent flow up to 300 whp or so that really can't be improved on without some very serious mods.

The restriction is upstream of the CBE, in the stock DP and those two cats.

So, for me the TurboXS without cats made the best sense and it is way cheaper than any complete TBE.

It connects very easily to the stock CBE, is a full 3 inch I.D. and you can always add a different CBE later if you so desire.

But the removal of the stock DP and install of the replacement is a bit of a challenge. If you plan on doing it yourself, there are several threads here regarding the issues -- mostly pertaining to what a b**** it working with the studs on the turbo exhaust outlet to DP connection.

Whether it is the TurboXS DP/RP or one of the others listed above, you really can't go wrong. But the DP/RP from somebody is the key to greatly improved performance for a modest investment.
 
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Thanks for all the input. I have checked out a bunch of TBE's and I think I am going to go with the Cp-e TBE. However there is a high flow cat that comes with it for 150$ extra. So overall I have to worry about emission's and I think it will give me the best performance for what I am looking for. Again thanks everyone if there are any other suggestions please do tell.
 
best dp set up 4 ur money is the turboxs stealthback, just witht hat ur car will move alot more, and will sound louder and a lot dofferent at WOT.. CBE wise get wut u think sounds the best, i got turboxs dp/rp nd a magnaflow cat-back, it sounds amazing, everyone i no whos herd it, likes the way it sounds
 
best dp set up 4 ur money is the turboxs stealthback, just witht hat ur car will move alot more, and will sound louder and a lot dofferent at WOT.. CBE wise get wut u think sounds the best, i got turboxs dp/rp nd a magnaflow cat-back, it sounds amazing, everyone i no whos herd it, likes the way it sounds

Does the downpipe match up with the stock CBE fine or does it require to have the race pipe with it. I ask this because if I ever need to swap exhaust for emissions I want an easy swap. Right now I was looking at the Cp-e TBE, but then I would have to choose whether or not I want a high flow cat. What I was gonna do is the Cp-e with a high flow cat, but am I going to lose any power w/ the high flow cat or is there not gonna be any difference? Decisions decisions...
 
Does the downpipe match up with the stock CBE fine or does it require to have the race pipe with it. I ask this because if I ever need to swap exhaust for emissions I want an easy swap. Right now I was looking at the Cp-e TBE, but then I would have to choose whether or not I want a high flow cat. What I was gonna do is the Cp-e with a high flow cat, but am I going to lose any power w/ the high flow cat or is there not gonna be any difference? Decisions decisions...


No, the downpipe does not match up with or connect to the CBE. The downpipe alone would require you to connect it to the second cat, which is before the CBE. That cat is restrictive.

Yes, you need the DP/RP combo. If you ever need to pass emissions, you can have a high flow cat welded into the middle of the RP, with a bung for the rear 02 sensor. That might cost you a hundred bucks or a bit more.

The high flow cat is way better than the stock ones, but still, any cat, even the high flow ones, will produce some restriction and will not be as free flowing as going catless, if you can do so.

The TurboXS DP connects easily to the TurboXS DP, which connects easily to the stock CBE.

If I were concerned about passing emissions, I'd buy a second TurboXS RP, if I could get one at the same time as buying the DP/RP combo. I'd have a good performane exhaust shop cut that second RP and weld a high flow, 02 sensor bunged cat in it, and put the completed catted RP on the shelf. Then come inspection time, the change out could be done in five minutes. The TurboXS RP is very easy to remove and reconnect.

I'm not in an emission testing state, but I did basically the same thing with a straight flow through reso where you might put the high flow cat. My goal was to reduce sound volume and drone without reducing flow. I see no reason you couldn't put a high flow cat there.
 
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When you installed your the exhaust did you have to drop the subframe? Also should I expect any CEL after installation?
 
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Does the downpipe match up with the stock CBE fine or does it require to have the race pipe with it. I ask this because if I ever need to swap exhaust for emissions I want an easy swap. Right now I was looking at the Cp-e TBE, but then I would have to choose whether or not I want a high flow cat. What I was gonna do is the Cp-e with a high flow cat, but am I going to lose any power w/ the high flow cat or is there not gonna be any difference? Decisions decisions...

u can buy just the downpipe and it will come with an adapter so it will fit to your stock testpipe, if u buy the testppe to it will come t adapters one for the stock downpipe and stock CBE, u can put ur stock test pipe in when ever u want, its just a matter of puttin in the adapters so it will fit right and no leak.. i would no i have the DP nd RP installed and was running that to my stock CBE intill i had money for a new one, ran fine
 
Thanks for all the input. I have checked out a bunch of TBE's and I think I am going to go with the Cp-e TBE. However there is a high flow cat that comes with it for 150$ extra. So overall I have to worry about emission's and I think it will give me the best performance for what I am looking for. Again thanks everyone if there are any other suggestions please do tell.

i dont have a cel with my catless cp-e dp. so you might not have to worry about emissions with the catless 1 either

they dont use a sniffer on our cars i dont think
 
u can buy just the downpipe and it will come with an adapter so it will fit to your stock testpipe,

We don't have a stock TESTPIPE. That is the second cat!

Yeah, you can connect and aftermarket DP to that, but WHY? It's one of the sources of the upstream restriction. If you have to have a cat, cut that sucker out and put a high flow cat in place. Or, if you don't have to worry about emissions, get a testpipe to put between the DP and the CBE. A true testpipe does not have a cat. That's why they call them testpipes -- they are (wink, wink) supposed to be used temporarily to see of the cat is blocked or highly restricted. They really should be called race pipes -- for use off road for competition purposes -- and they DO NOT HAVE CATS.
 
Now I got people telling me that I want a high flow cat because there should be some back pressure when dealing with a turbo car. But the Trubo XS TBE doesn't come with a high flow cat it only comes with the rp. I know that the Cp-e TBE comes with a high flow cat, but what if one day I want throw a test pipe in there just for fun then I can't unless I cut out the cat. Ughh any suggestions???
 
Now I got people telling me that I want a high flow cat because there should be some back pressure when dealing with a turbo car. But the Trubo XS TBE doesn't come with a high flow cat it only comes with the rp. I know that the Cp-e TBE comes with a high flow cat, but what if one day I want throw a test pipe in there just for fun then I can't unless I cut out the cat. Ughh any suggestions???

correct me if im wrong but the difference between a catted and non-catted TBE would be a cat in the DP section?

like said above, the test pipe would replace the 2nd cat. however, i just gutted the entire 2nd cat and have no need for a $180 test pipe now. :D
 
Now I got people telling me that I want a high flow cat because there should be some back pressure when dealing with a turbo car. But the Trubo XS TBE doesn't come with a high flow cat it only comes with the rp. I know that the Cp-e TBE comes with a high flow cat, but what if one day I want throw a test pipe in there just for fun then I can't unless I cut out the cat. Ughh any suggestions???

Backpressure is a non-issue in turbocharged cars. That's non-sense and non-scientific.

If you want or need the high flow cat or want to be able to switch back and forth, run the uncatted DP/RP combo, get a second TurboXS RP and have a muffler shop put in a high flow cat. Everything will match up just fine and you can switch back and forth in minutes.
 
We don't have a stock TESTPIPE. That is the second cat!

Yeah, you can connect and aftermarket DP to that, but WHY? It's one of the sources of the upstream restriction. If you have to have a cat, cut that sucker out and put a high flow cat in place. Or, if you don't have to worry about emissions, get a testpipe to put between the DP and the CBE. A true testpipe does not have a cat. That's why they call them testpipes -- they are (wink, wink) supposed to be used temporarily to see of the cat is blocked or highly restricted. They really should be called race pipes -- for use off road for competition purposes -- and they DO NOT HAVE CATS.

turbo xs sels a rp for it, nd u can stock everything and just have that in, i would no i ran my car like that for like 3 weeks
 

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