Y-pipe install

[borfoo3]

Running the URD Y pipe without issue for the past 2 yrs.. install post here

Don't expect any crazy gains by itself. You can expect to get some gain up top with a catback setup to free up the exhaust path.

I'm now running a TRD intake with stock catback, headers. I do like the clearance and how it mounts better than the crushed OEM piece. No CEL issues either

 

[TonyBravo]

Just wanted to share my initial thoughts on my URD Y-pipe.
setup before hand was stock ypipe + magnaflow muffler.
setup now is URD ypipe and MBRP muffler dumping beforte axle.
First off let me just say that if your 4runner is a couple years old (mines a 2012) hit those bolts on the headers with something to loosen it up, I snapped 2 bolts and had to tap them, aside from that easy instal; I took a sawzall to my stock y-pipe to make my life easier.
I crushed my stock pipe and that was the only reason for getting an aftermarket, but goddamn I wish I would have done it sooner. I was sitting at 13.8 mpg before and after resetting my ecu and putting about 100 miles on im at 15.3 :banana: You can definetally tell a change in power, I take off quicker.
Only downside I've experienced is a rasp when you get on the gas.

 

[oljedi11950]

Very easy for an old man just get underneath & check it out tools ie22mm o2 socket & pb blaster ! 2 o2 sensors to remove have spares it you hit them with blaster (toast) ! Urd sends gaskets for y-pipe , really I'm not sure why Op making harder that it seems ? Everything is behind a/f sensors & upper cats !

 

[Adoniram]

Quick status report: I have installed the y-pipe and am probably the only member on the forum to do so without an accompanying header or muffler install. It sounds 100% stock again, but there is a noticeable change in throttle response. It's not like VTEC just kicked in (yo) but definitely there.

I will be reporting mpg changes in the near future. Previously it was around 17 mpg (mostly highway with some traffic mixed in). It'll be interesting to see how it changes.

Ultimately, I'm already glad I did it for the improved power (I'll need it in Colorado), and improved ground clearance. Any improvement in mpg will sweeten the deal further.

 

[TheWraith]

Anybody have any actual pics of the Y Pipe installed? Such as the gap between the tranny and pipe and anything else that people may find important?

Ask you shall receive... follow the link. Pics on my build thread

http://www.toyota-4runner.org/5th-gen-t4rs/190157-build-thread-my-rocky-11.html#post2213695

 

[Adoniram]

Ok so your dyno numbers match my butt-dyno feeling, but I'm fairly certain I'm not benefiting as much as you did. This is the only after-market component I have at the moment... The TRD CAI is on its way though!

 

[AlblineStar808]

installed my y pipe and urd hi tuck exhaust. past few days has been no issues and today for some reason i got a check engine light, trac control off light, and the green vehicle on terrain light. Came on during normal driving

 

[borfoo3]

installed my y pipe and urd hi tuck exhaust. past few days has been no issues and today for some reason i got a check engine light, trac control off light, and the green vehicle on terrain light. Came on during normal driving

Those mods alone shouldn’t trigger a CEL as they are all post cats.

Get a reader on it and grab the code. Must be something else going on.

 

[Judd94]

The only thing that realistically could throw a code that’s related to the install is either an O2 sensor was damaged when swapping it to the Y Pipe or it’s not plugged in all the way.

 

[wfo9]

installed my y pipe and urd hi tuck exhaust. past few days has been no issues and today for some reason i got a check engine light, trac control off light, and the green vehicle on terrain light. Came on during normal driving

90% chance, You have a leak at the connection point in front of the rear 02. The slightest leak of any sort will cause this. Triple check the gaskets. and connections..

Also read the code, it is probably something related to one of the cat efficiencies and they will tell you which bank.

 

[Adoniram]

Status update: I've driven a few hundred miles now in roughly the same mixture of highway and city driving.

Before y-pipe: 17.3 mpg
After y-pipe: 19.0 mpg

Take-away:
If you drive in Colorado where the average price per gallon is $2.72, the y-pipe will pay for itself in ~31,000 miles.

If you drive in California where the average price per gallon is $3.60, the y-pipe will pay for itself in ~23,000 miles.

So, if you need additional justification (i.e. spouse-factor), and you plan to keep it long-term, the y-pipe is a good investment. The price of gas is likely to increase, not decrease, so its value improves over time.

I gotta be honest, I feel like an almost 10% increase to mpg is a little surprising, but I was legit driving in the same conditions, sometimes in very strong winds, sometimes stopped on the highway... It's probably a fair representation of realistic gains, but take it with a grain of salt.

 

[jasxn]

[MENTION=222665]Adoniram[/MENTION] question.

when you installed the y-pipe, the two crush gaskets will be inserted at the inlet of the Y. soooo what do we do with the single exit portion of the Y? did you just use the existing gasket?

I spoke with gadget but he said I only needed 2.

what did you do?

thanks for your help! i get my y-pipe this Friday so hopefully install Saturday morning. and the MAF Cal is back-ordered a few weeks

 

[Adoniram]

There's a doughnut gasket (that's what I'm calling it anyway) at the other end. I just reused the existing gasket. My vehicle only had about 7000 miles on it, so it was in good shape. I think another one of those was something like $20-30 from Toyota. I couldn't find a parts store that carried it.

 

[jasxn]

There's a doughnut gasket (that's what I'm calling it anyway) at the other end. I just reused the existing gasket. My vehicle only had about 7000 miles on it, so it was in good shape. I think another one of those was something like $20-30 from Toyota. I couldn't find a parts store that carried it.

thank you for the update! I'm at 10K so I'll assume I'm good too.

 

[1jzgte]

Hows the fumes after removing 2 cats? I tend to run my rear window down all the time.

 

[jasxn]

Hows the fumes after removing 2 cats? I tend to run my rear window down all the time.

ill let you know when summer hits southern cali lol. its been cold (cali standards) lol.

you dont want to hit up a muffler shop and have them redirect it to the side? that was my next plan before the summer here.

 

[1jzgte]

ill let you know when summer hits southern cali lol. its been cold (cali standards) lol.

you dont want to hit up a muffler shop and have them redirect it to the side? that was my next plan before the summer here.

That's an option. The bumper on the SR5 premium/limited editions are actually lower than the normal offerings. A side exit will sit a little lower than the OEM height. Not sure how odd that'll look.

 

[jasxn]

[MENTION=222665]Adoniram[/MENTION] did you put some kind of heat reflecting material on the trans panel? I've been reading there could be heat soak from the y-pipe that crosses over. Gadget said no but I think some members took preventative measures.

i have left over reflect-a-gold tape from DEI and i'm wondering if i can put the tape on it. just peace of mind since the cross tube is right under it.

 

[Judd94]

[MENTION=222665]Adoniram[/MENTION] did you put some kind of heat reflecting material on the trans panel? I've been reading there could be heat soak from the y-pipe that crosses over. Gadget said no but I think some members took preventative measures.

i have left over reflect-a-gold tape from DEI and i'm wondering if i can put the tape on it. just peace of mind since the cross tube is right under it.

Because this I started looking at the Doug Thorley Y Pipe which goes down passed the transfer case and back up meet the catback. I was set to get that one but some material says stainless steel and others say aluminumized steel which apparently rusts. So I’m not sure what I’m gonna do

 

[2016 4Runner SR5]

Because this I started looking at the Doug Thorley Y Pipe which goes down passed the transfer case and back up meet the catback. I was set to get that one but some material says stainless steel and others say aluminumized steel which apparently rusts. So I’m not sure what I’m gonna do

Link to the DT Y pipe please?