08-15-2018, 06:38 PM
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#61
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Join Date: Jan 2017
Location: North Carolina
Age: 41
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Real Name: Chris
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So has anyone removed their OEM Y pipe, gutted the cats, and reinstalled the OEM Y pipe? While I know the URD pipe will out perform this option, I have to assume doing this would free up some restriction, change the sound, and possibly have some positive results on performance and maybe even fuel economy? NO, I AM NOT WORRIED ABOUT FUEL ECONOMY! I know what I got when I bought it but there isn't anyone here that wouldn't appreciate even a slight bump over my personal average of about 16 mpg
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2016 4RUNNER SR5 PURCHASED NEW JANUARY 29TH 2017 - OEM FJ TRD PRO SUSPENSION WITH 3/8 CORNFED TOP HAT SPACERS & 1" PRELOAD SPACER FOR A TOTAL OF 2.5" FRONT LIFT, 2" CORNFED SPACERS IN THE BACK (I'M A DEALER FOR CORNFED SUSPENSION), FX PRO WHEELS, 295/70/17 MICKEY THOMPSON ATZ P3, WEATHER PACKAGE, NAVIGATION, LED INTERIOR LIGHTS, AFE PRO DRY AIR FILTER, BORLA MUFFLER, TYGER SLIDER STEPS, BLACKOUT EMBLEM KIT, TRD PRO GRILL, POLY FRONT AND REAR SWAY BAR BUSHINGS, OEM 3RD GEN REAR SWAY BAR LINKS, REAR DIFF BREATHER MOD, OEM ALUMINUM OIL FILTER HOUSING UPGRADE, OIL CATCH CAN.
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08-17-2018, 02:14 AM
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#62
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Join Date: Oct 2014
Location: Riverside
Age: 48
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Real Name: Justin
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Senior Member
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Quote:
Originally Posted by 2016 4Runner SR5
So has anyone removed their OEM Y pipe, gutted the cats, and reinstalled the OEM Y pipe? While I know the URD pipe will out perform this option, I have to assume doing this would free up some restriction, change the sound, and possibly have some positive results on performance and maybe even fuel economy? NO, I AM NOT WORRIED ABOUT FUEL ECONOMY! I know what I got when I bought it but there isn't anyone here that wouldn't appreciate even a slight bump over my personal average of about 16 mpg
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Gutting or hollowing your cats out. Will actually hurt performance. Because your creating an expansion chamber which will slow down exhaust gas and create turbulence when it goes back down to 2.5" ... And this will actually screw with the efficiency of the flow of gas and the scavenging effect.
This hollowing cats out will only really work for turbo app ko ications.
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08-17-2018, 07:55 AM
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#63
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Join Date: Jan 2015
Location: San Diego
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08-23-2018, 06:47 PM
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#64
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Join Date: Jun 2018
Location: LC, NM
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Quote:
Originally Posted by themuffinman619
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Roostfactor is putting one together for my runner.
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10-06-2018, 02:35 PM
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#65
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Location: NYC
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Quote:
Originally Posted by elnip
Roostfactor is putting one together for my runner.
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Please let us see the finished product when available! Thanks.
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2015 4Runner Trail Non-KDSS Husky Floor Mats Falken Wildpeak A/T3W P265/70R17 AFe Drop in Air Filter So far stock... Loving it
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10-09-2018, 05:51 PM
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#66
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Join Date: Jun 2018
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Quote:
Originally Posted by enyce
Please let us see the finished product when available! Thanks.
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Will do, should be on early November.
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'16 T4R Trail P
JFR equal length Y-pipe, URD High Clearance 3" exhaust, Volant resonator, ICON
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01-24-2019, 01:08 PM
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#67
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Join Date: Jun 2018
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Quote:
Originally Posted by elnip
Will do, should be on early November.
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So I have the new y pipe installed as of last weekend. Fit finish and quality is outstanding! I will start another thread with the info.
In the mean time here is a link to the current thread.
jfr-equal-length-y-pipe-for-2nd-gen-tacoma-t4r-fj-cruisers/
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'16 T4R Trail P
JFR equal length Y-pipe, URD High Clearance 3" exhaust, Volant resonator, ICON
Last edited by elnip; 01-24-2019 at 01:15 PM.
Reason: added link
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01-24-2019, 03:35 PM
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#68
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Join Date: Jan 2013
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The equal length options seem to really rice out the sound of the 4.0.
YouTube
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01-24-2019, 03:38 PM
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#69
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Join Date: Dec 2004
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LOL I Like how it sounds
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2011 Starfire Pearl GX460 stock base ;)
2012 Blizzard Pearl SR5 | 285 Toyo OC AT3 | Level 8 Slam | YotaWerx ActiveDuty | Die Hard AGM w/ArcLightLeds V2 Booster | Borla 40665 | URD Y & MAF Cal TRD | C4 Center LP | Maxbore 2mm TB "loaner from my boy Dave" | X20 10k Factor55 | Shrockworks Armory | RCI LCA skids | TC Gusset | LFD Offroad 7/8 | TJM Airtec dry aFe HPS coupler w/TRD CAI tube | B8 6112 | 650# King | ICON Delta Joint | Fox 2.0 VS| SAW 1.5" |230k|
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01-24-2019, 03:47 PM
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#70
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Quote:
Originally Posted by Whippersnapper02
The equal length options seem to really rice out the sound of the 4.0.
YouTube
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That was the problem with URD spec-u. They were not at the proper equal length and the merge collector was not the best. I hear gadget says it's fixed now but who knows.
This is a totally different animal and mine sound nothing like that. The equal length was calculated specifically for the 1GR. Roostfactor can explain his work much better than I can so I will leave that to him.
link to my install on pg 41 JFR Equal Length Y-Pipe for 2nd Gen Tacoma, T4R, & FJ Cruisers | Page 41 | Tacoma World
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'16 T4R Trail P
JFR equal length Y-pipe, URD High Clearance 3" exhaust, Volant resonator, ICON
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08-22-2019, 06:24 PM
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#71
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Any updates on the URD y? Anyone running it with stock cat back?
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Last edited by Charlievee; 08-22-2019 at 06:29 PM.
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08-22-2019, 09:56 PM
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#72
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Join Date: Oct 2014
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Real Name: Justin
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Quote:
Originally Posted by Charlievee
Any updates on the URD y? Anyone running it with stock cat back?
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I've had my urd y pipe for almost 4years... still great and still rust free because I painted it in high temp paint and wrapped it in a inconel heat shield from ATP Wrap.
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2014 Raptor Liner White TEP w/ some mods.
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08-22-2019, 10:40 PM
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#73
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Quote:
Originally Posted by TheWraith
I've had my urd y pipe for almost 4years... still great and still rust free because I painted it in high temp paint and wrapped it in a inconel heat shield from ATP Wrap.
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So, your the one?
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2018 TRD Off Road Premium. Eibach Pro, JBA, Toyo's, TRD cai.
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08-23-2019, 12:14 AM
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#74
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Senior Member
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Join Date: Oct 2014
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Real Name: Justin
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Senior Member
Join Date: Oct 2014
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Real Name: Justin
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I'm the one what ??? Lost me there
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My Build Thread
My kids call it ROCKY
2014 Raptor Liner White TEP w/ some mods.
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08-23-2019, 12:39 AM
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#75
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Member
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Join Date: Dec 2004
Location: Houston, TX
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Member
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URD Y is sufficient, if I had the extra dough I would go Rooster Y but I was fortunate to locate a TW 4Runner owner 2 hours from me that swapped from a URD Y to a Rooster Y. $150 was a steal and two days to get the gaskets from Gadget, I'm all smiles entering Houston freeways. I Would try to contact Rooster and ask him if anyone of his customers are doing the same upgrade and buy their used URD Y for cheap. I have one spare urd Y gasket if anyone wants it for free. Steve forgot to send me 2 and sent me 3 total on accident.
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2011 Starfire Pearl GX460 stock base ;)
2012 Blizzard Pearl SR5 | 285 Toyo OC AT3 | Level 8 Slam | YotaWerx ActiveDuty | Die Hard AGM w/ArcLightLeds V2 Booster | Borla 40665 | URD Y & MAF Cal TRD | C4 Center LP | Maxbore 2mm TB "loaner from my boy Dave" | X20 10k Factor55 | Shrockworks Armory | RCI LCA skids | TC Gusset | LFD Offroad 7/8 | TJM Airtec dry aFe HPS coupler w/TRD CAI tube | B8 6112 | 650# King | ICON Delta Joint | Fox 2.0 VS| SAW 1.5" |230k|
| 03 DCSB Tacoma OME equipped, +320k Still Truckin |
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