Is there an sensor behind the cat like there are on gas trucks with the 02 sensors? The reason I ask is because I want to do this but I dont want it throwing a code and turning my SES light on.
@vortec350chevy There is no 02 sensors until 08 but if u have a 06 lly or lbz the egr and mass air flow are tied into each other and measures your emissions thru those 2 by measuring flow rates on both ends and if you trip insuficient flow on the egr end it'll trip your light and can throw your rig into limpmode on a 06 and up without a programer to trick the ecm
flex pipe rots out no matter what up here in northern maine with all the salt and calcium on the roads. you keep saying 4 inch but it looks like a stalk exhaust which is only 3 something. another thing is how did u put a straight pipe where the muffler was without making your tailpipe hang and be uneven and wierd if the inlet and outlet arent lined up on a duramax? Nice job anyway, i just wouldnt have done flex pipe by the cat.
Well your absolutely right... flex pipe rotts in salt and calcium. I live in Northern Ontario and I know what thats about. The reason that I used flex was because the exhaust was not the original one from Cat back and had some bends in it where the flex pipe had to go. So that was my only option. From motor to Cat it's a 3.5", and from Cat back it's 4". As far as ligning up the exhaust tip.... just take your time and support it with something where you want it... then connect it to the exhaust.
nice, when i did mine i cut the cat out and welded a straight solid pipe, and the muffler i welded two 20 or so degree angles on each side where i cut so i could run a solid pipe. Now i got an mbrp turbo back exhaust with an ats 4 inch downpipe. had no choice with the aurora 6000 turbo.
Nice!! Thats gonna be a BAD truck! I want to get a bigger turbo.... but now my tranny's gonna have to get rebuilt again. I don't know.... it's one if those things that eventually enough money is spent on a vehicule.
to be honest the allison will last quite awhile with alot of mods considering it is the best in its class. all depends on how you run it. i got a sunco on mine and i love it, doesnt miss a beat, and i am currently running around 850hp for a rough estimate. If you looking for some good mods go with e.f.i. live, its pretty much any kind of tune that you want.
If you take your cat and your muffler off it will be straight pipe. Hence it will cound awesome! It's been a year now since I have done this and I don't regret it one bit.
no, no dont cut ur cat off without any programing. you cut it off with nothin to program, ur engine will start but will shut off automatically because it senses a problem, u nver get to use ur truck again. ur warranty be void and u have to pay big doe to get it fixed by a another person. depends on what model truck u have, year wise i mean.
No, diesels don't care if the cat is there or not. No sensors involved. Matter of fact the federal emissions early '04 and older didn't come with them installed. The truck will run fine...but the cops won't like it very much.
Your truck wont shut off if you cut the cat and muffler out this guy doesent know anything. This truck is a 2004 so it dont got any sensers. My buddy has a 2006 LBZ and we did the same thing choped the cat and muffler and dident throw any codes. Nor did my 2005 when i piped it.
And it wont void your warrenty diesels dont need cats. And you dont need programing for this mod
U can do it how ever u want. I just cut my cat out and welded a piece of pipe in place. I don't like that shitty flex pipe As for the back muffler you half to take it to the muffler shop and get them to bend a piece of pipe around the axle i think it cose me $60 then your golden
i have a cat back banks power exhaust on right now and all i have to do it take off the cat and im good to go. but if i just put a flex pipe for now will that work out? and if i get it to a pipe later on will i still have to take it to a muffler shop to bent some pipes were that cat was or can i just put a straight pipe in that place?
Cut your cat right out and replace it with pipe you wont get that bark if u just gut that cat and weld it back together its acts as a baffle when its empty
Do you think there is any possible way to get the cat off without cutting it on both sides? because i have a pipe that clamps to the downpipe and goes to where the cat's pipe ends.
Well if your cat is clamped to the downpipe and also clamped to the exhaust.. then just unbolt it. If all else fails just cut it with a sawsall... then just do what I did to go straight pipe.
Sorry man that is not a resinator.. it's a cat. The resinator is on the top of the engine to muffle sound of the intake. May people remove it to make your engine louder and to hear your turbo more.
Those are my winter tires and rims. They are Yokoyama ITGO72. 315/50/16. They are very good in deep snow and slush. Although if I would have to restart I would get a norrower tire to "cut" through deep snow. But all in all I really like them.
how much actual honeycomb, or honeycomb layers is in the stock cat?
booyahman7 1 month ago
lol dontcha ya know, EH!
700hpcamaro 3 months ago
all you have to do is get some scrap exhaust tubing and hallow out the cats
drh1111 1 year ago
at the end u sound kinda queerish, no offense just sayin
44boman 1 year ago
@44boman he's canadian dude. They all sound like that. I have tons of family up there, believe me I know.
smmoffat 1 year ago
Is there an sensor behind the cat like there are on gas trucks with the 02 sensors? The reason I ask is because I want to do this but I dont want it throwing a code and turning my SES light on.
vortec350chevy 1 year ago
@vortec350chevy There is no 02 sensors until 08 but if u have a 06 lly or lbz the egr and mass air flow are tied into each other and measures your emissions thru those 2 by measuring flow rates on both ends and if you trip insuficient flow on the egr end it'll trip your light and can throw your rig into limpmode on a 06 and up without a programer to trick the ecm
yotamobber 1 year ago
@yotamobber Alright, thanks. I should be fine then. Its an 05 LLY
vortec350chevy 1 year ago
Nice D-max. Dieselplace is a great forum , lots of help for my 6.5 bucket truck.
Nice garage too.
91CTD 1 year ago
I wanna do that to my stock 06 LLY, but I hear if you take the cat out it will mess with your egr and throw a code is that true?
yotamobber 1 year ago
Good video. How's the horsepower difference and how's mpg.
BLACKDRAGONBADHD1 2 years ago
flex pipe rots out no matter what up here in northern maine with all the salt and calcium on the roads. you keep saying 4 inch but it looks like a stalk exhaust which is only 3 something. another thing is how did u put a straight pipe where the muffler was without making your tailpipe hang and be uneven and wierd if the inlet and outlet arent lined up on a duramax? Nice job anyway, i just wouldnt have done flex pipe by the cat.
DuramaxDiesel2500 2 years ago
Well your absolutely right... flex pipe rotts in salt and calcium. I live in Northern Ontario and I know what thats about. The reason that I used flex was because the exhaust was not the original one from Cat back and had some bends in it where the flex pipe had to go. So that was my only option. From motor to Cat it's a 3.5", and from Cat back it's 4". As far as ligning up the exhaust tip.... just take your time and support it with something where you want it... then connect it to the exhaust.
gabrielchartrand37 2 years ago
nice, when i did mine i cut the cat out and welded a straight solid pipe, and the muffler i welded two 20 or so degree angles on each side where i cut so i could run a solid pipe. Now i got an mbrp turbo back exhaust with an ats 4 inch downpipe. had no choice with the aurora 6000 turbo.
DuramaxDiesel2500 2 years ago
Nice!! Thats gonna be a BAD truck! I want to get a bigger turbo.... but now my tranny's gonna have to get rebuilt again. I don't know.... it's one if those things that eventually enough money is spent on a vehicule.
gabrielchartrand37 2 years ago
to be honest the allison will last quite awhile with alot of mods considering it is the best in its class. all depends on how you run it. i got a sunco on mine and i love it, doesnt miss a beat, and i am currently running around 850hp for a rough estimate. If you looking for some good mods go with e.f.i. live, its pretty much any kind of tune that you want.
DuramaxDiesel2500 2 years ago
Truck sounds great...!
453Bandit 2 years ago
does anyone no what size pipe comes on the 04 LB7 cause im looking to take the muffler off and need to know what size it is???
kyledestroys 2 years ago
3-1/2"
outdoorfool2000 2 years ago
All a cat on a diesel does is act like a soot trap i took mine offf who needs that shit its just extra weight
chevysuburban2894 2 years ago 5
Hell you'd be better off just splicing in a 4 inch cutout, so it could be super loud, or quiet, whenever you decide.
kcole939 2 years ago 2
were did u get the adapters
offroad6x6 2 years ago
EY AM CANADIAN EY FROM ONTARIO EY
hhhhhhh fucking morons
supafla777 3 years ago
that's how we do it in America. not russia, not czech, not anywhere else.
ZombieFan03 3 years ago 7
sounds like poo
ifihadabrain 3 years ago
If you take your cat and your muffler off it will be straight pipe. Hence it will cound awesome! It's been a year now since I have done this and I don't regret it one bit.
gabrielchartrand37 3 years ago
why does it sound better so your saying if i cut the cat off my truck it will sound better don't know any thing about trucks
ma42167 3 years ago
no, no dont cut ur cat off without any programing. you cut it off with nothin to program, ur engine will start but will shut off automatically because it senses a problem, u nver get to use ur truck again. ur warranty be void and u have to pay big doe to get it fixed by a another person. depends on what model truck u have, year wise i mean.
KLsemperFi7 3 years ago
No, diesels don't care if the cat is there or not. No sensors involved. Matter of fact the federal emissions early '04 and older didn't come with them installed. The truck will run fine...but the cops won't like it very much.
im1469 3 years ago 2
Your truck wont shut off if you cut the cat and muffler out this guy doesent know anything. This truck is a 2004 so it dont got any sensers. My buddy has a 2006 LBZ and we did the same thing choped the cat and muffler and dident throw any codes. Nor did my 2005 when i piped it.
And it wont void your warrenty diesels dont need cats. And you dont need programing for this mod
Chad4035 3 years ago
So i should cut off mines from my LBZ?! haha if what your saying is true then hell ima cut mines off right now!
truckaholic 2 years ago
Yes you should.
Chad4035 2 years ago
I have the truck in the shop right now ... should i do it like the guy in this video did? how did u do yours?
truckaholic 2 years ago
U can do it how ever u want. I just cut my cat out and welded a piece of pipe in place. I don't like that shitty flex pipe As for the back muffler you half to take it to the muffler shop and get them to bend a piece of pipe around the axle i think it cose me $60 then your golden
Chad4035 2 years ago
i have a cat back banks power exhaust on right now and all i have to do it take off the cat and im good to go. but if i just put a flex pipe for now will that work out? and if i get it to a pipe later on will i still have to take it to a muffler shop to bent some pipes were that cat was or can i just put a straight pipe in that place?
truckaholic 2 years ago
This dude is a moron...
453Bandit 2 years ago
that sounds good
powerlifter46 3 years ago
sounds so nice. Isent it illegal to cut off the cat tho? i want to do it to my lbz but the only thing stoping me is getting caught.
truckaholic 3 years ago
not on a diesel i have a 2002 durmax silverado and it sounds amazing
lilskater6789 3 years ago
Cut your cat right out and replace it with pipe you wont get that bark if u just gut that cat and weld it back together its acts as a baffle when its empty
Chad4035 3 years ago
Did removing the cat set off any codes or check engine light?
Tercola87 3 years ago
no there were no codes that came up.
gabrielchartrand37 3 years ago
Do you think there is any possible way to get the cat off without cutting it on both sides? because i have a pipe that clamps to the downpipe and goes to where the cat's pipe ends.
SJMCC8520 3 years ago
Well if your cat is clamped to the downpipe and also clamped to the exhaust.. then just unbolt it. If all else fails just cut it with a sawsall... then just do what I did to go straight pipe.
gabrielchartrand37 3 years ago
You two Canadians sound Canadian.
bnowlin001 3 years ago
I have that exact modification... Deam I like it soo much.. Recommended. for Hi entusiasts. Plus.. A Better performance..
OSCIEL1GUERRA 3 years ago
Sorry man that is not a resinator.. it's a cat. The resinator is on the top of the engine to muffle sound of the intake. May people remove it to make your engine louder and to hear your turbo more.
gabrielchartrand37 3 years ago
thats not a cat. its a resinator or an extra muffler put on 2/3s of the trucks produced.
arlonlng 3 years ago
Those are my winter tires and rims. They are Yokoyama ITGO72. 315/50/16. They are very good in deep snow and slush. Although if I would have to restart I would get a norrower tire to "cut" through deep snow. But all in all I really like them.
gabrielchartrand37 3 years ago
what size rims and tires are you running?
lawrogue17 3 years ago
it's a 6" Procomp.
gabrielchartrand37 3 years ago
had to watch it again .. what is the lift on your truck?
tythesnoman 3 years ago
wow unleashed the beast! sounds nice
tythesnoman 3 years ago
Duramax engines don't have silencer rings. It's a good thought.
gabrielchartrand37 3 years ago
you should now remove the silencer ring on the turbo to have a really sweet whistle since you've gone this far.
Leonard05 3 years ago
Just the video I was looking for thanks!!...lol. I swear you can find anything on the net these days.
mathiastheok 3 years ago
Sharp looking truck
ian05rado 4 years ago
Nice truck! Sounds good too bud!
DPHeavyHD 4 years ago
nice video, truck sounds SWEET!!!
factorymx 4 years ago