How much did it all cost you?Yeah, I just made a kit:
DT long tubes, Berk B-pipes, JBA cat-back, Uprev
Unfortunately you have to buy my kit in separate parts, from different vendors.
You might want to pick up a header to block gasket from Nissan, although I think some people just reuse the OEM gasket. The Berk B-pipes are supposed to come with gaskets.
DT Longtubes I think $575 although there have been posts about an SS version for more $, so maybe call them and ask.How much did it all cost you?
Doug Thorley Lt's, custom 2.25" b pipes, flowmaster 2.25/3 Y, 3" pipe to any flow through muffler you want dumped. BAM!! Oh yea and UprevMy factory headers are cracked and I want to replace the entire exhaust. Does somebody make a 100% kit that includes headers, pipes, mufflers, hanger accessories, O2 Sensor stuff etc?
The JBA cat-back does have a Y from the B-pipes to a single in single out muffler. The JBA Y is not crushed like the OEM Y and is not too big so it doesn't kill the low end torque.bestatchess: why no Y-pipe in that config? Is it dual to a 2 in/1 out muffler? No Y?
Yes, provided Berk gets it fitment issues sorted out, and I expect they will take care of that in short order.Also, would DT Long tubes, Berk B's, and the JBA work on a 2006 4WD?
2006 2wd has primary cats on manifolds + resonators in the b-pipesI now have two sets of cats
Correct, the Berk B-pipes have one high flow cat in each pipe.after the mods I would have one set - a high flow set on the Berk B-pipes, right?
Not sure you would throw a code, but you definitely need Uprev to correct the AFR. The best thing to do is pickup a cold air intake (if you don't have one already) and install at the same time. Then Uprev can email you the complete tune for CAI, headers, b-pipes, cat-back all in one fell swoop, rather than paying for additional $50 e-tune if you get a CAI later. As far as CAI, I have Injen which comes with the blue dry Amsoil cone filter. There are other CAIs to choose from, many which cost less than Injen. I would recommend getting one with a dry filter so you don't have to worry about over-oiling the filter and fouling your MAF sensor.I would throw codes with that until I got Uprev, or is Uprev just for fine tuning?
I wouldn't use the word "just" because it is an all day job, but yes, they bolt on and they would replace cracked oem manifolds.Also, if I have cracked manifolds I can just bolt on the DT long tubes, right?
You have two pairs of sensors. If you install long tube headers and Berk B-pipes, the forward pair of sensors go in bungs provided in the headers. The aft pair of sensors go in bungs provided in the B-pipes, downstream of the cats.The only problem is the O2 sensors were after the first cats, and those will be gone with the new headers, so I'd have to have the sensors moved after my 2nd cats (again, I have a 2006 4WD).
Yeah, it will bolt up. If you are going to have the shop do the headers, I would get a price for the entire install, as cutting (as opposed to dealing with well rusted studs & nuts) off B-pipes & exhaust and bolting on brand new parts should go really quick, particularly on a lift.I am hoping the DT's bolt to the OEM B-Pipes, which the shop will do, and later I will come along and bolt on new B-pipes and a new cat back system.
I bought two Magnaflow 94035 cats for $120 and had B-pipes made for another $150 or so. But then I had to spend some time extending O2 sensor wires and the cats in the Berks are probably better. There is a thread on here somewhere that gives the size & dimensions of the pipe & bends you need to make the B-pipes. Then with a 4x4 you need to be careful where you locate the sensor bungs or the driver side sensor won't clear the transfer case. So yes, you can probably save $200, but you might end up with a big PITA or paying additional labor charges that will offset the savings.I think I may be priced out of the Berks. Nearly the same cost as the headers and 20% more than the entire catback system, just for the b-pipes/cats? Seems unreasonable.
There was a post this AM that they have them straight now and will be shipping the revised version next week to the original buyers. As far as new purchasers, you would have to contact them and see when they can ship.Did you say the Berks aren't ready for 4WD vehicles (which is what I have) anyway?
You may not pass sniffer type emissions with only the secondary cats, you may throw cat efficiency codes, and they may be lower flow. I think some people have just punched out the secondary cats (hollowed them out) and run w/o any cats. Perhaps Uprev could clear any resulting codes, or you could trick them with defoulers, but you would need to talk to Uprev and/or hear from somebody running w/o cats.I am set on DT Long Tubes and a JBA cat back exhaust, but no B-pipes yet. Why would I not want to keep the OEM B-pipes?
Stillen makes bolt in B-pipes w/ cats, they cost the same or more than Berk and I think perhaps Berk has better cats and may be less likely to throw codes because of the sensor bung extensions. You never really know until the early adopters try them out for awhile, but it appears that Berk is an established company as far as making catted pipes for other vehicles. Walker makes some inexpensive bolt-in B-pipes w/o cats, I think they have a resonator built in.Who else makes bolt in b-pipes for the titan? is it just Berk or a custom job as my options?
To avoid throwing codes w/o tricks, you have to have the sensors behind (or in the bung on the downstream end of the cat) adequate cats in the B-pipes. I think some people were able to trick them by running defoulers which move the sensor further out of the exhaust flow. The secondary cats in the B-pipes were not intended to handle the entire job w/o primary cats. MF 94035 are rated to handle our engine size and vehicle weight.The big OEM exhaust stickied thread mentions I will throw codes since the B-pipe O2 sensors will read straight engine air. Is that true on my 4WD since I still have secondary cats?
w/o tricks such as defoulers, perhaps Uprev squashing the codes, yes, I think that is the case. Again, if you have to pass sniff emissions, I think you need adequate cats. AFAIK, you can't legally run anything except OEM cats in California, and they apparently have a visual inspection of your exhaust system.Is the only way to NOT throw codes to keep cats in the B pipe and make sure the sensors are behind them?
The Magnaflow cat will work provided you put them in the right position, I had to extend one of the rear sensor harnesses by splicing & soldering. If you don't plan things out carefully, you may end up with the transfer case blocking sensor installation. A couple of people have reported fairly early failure of the Magnaflow 94035 cat, but mine are still working fine.The same stickied thread mentions Magnaflow makes a CAT with a rear bung - does it work on the 4wd since you mentioned bung placement can torpedo it all?