Titans need backpressure my A##

14634 Views 221 Replies 33 Participants Last post by DRTYAZN, Jun 3, 2011

deerslayer

Discussion Starter · May 16, 2011

Here is a video from a member on CT. He was running 14.0X forever with 07+ exhaust with 2 spintec mufflers. Now he's running just straight pipe after the headers with 2 14" magnaflows and ran a 13.7. He has NO X pipe or Y pipe on his truck. We argue on here about the X or the Y being better and now we have a member running this....LOL

101 - 120 of 222 Posts

DRTYAZN

· #101 · May 24, 2011

I think your AF's should be fine, maybe a bit more lean due to increased flow, but shouldn't be harmfully lean... I imagine for testing purposes, it should be fine and demonstrate the loss or gain... If anything, -.1 with current tune could mean better once you get a retune... just hate to see a +.1, then we know too much flow is bad...

look forward to your runs and results!

Reactions: 1

O-FiveCC

· #102 · May 24, 2011

I have a bad habit of getting off topic lol. Sounds like a good way to test it deerslayer. Just run cipher for both tests, you'll be able to see if it leaned you up or richened you up. I don't guess there will be hardly any difference in tune. It'll be good to see what it does for you

deerslayer

Discussion Starter · #103 · May 25, 2011 (Edited)

O.K boys I couldn't wait here's the results using cipher and data logging all 4 0-60 runs. I did 2 runs with Y pipe and 2 runs with straight pipe off headers. Ran the y pipe setup then came home cut it off and went to town

REMEMBER ALL TESTS WERE DONE ON THE SAME ROAD, SAME EXACT SPOT
Run #
1. Y pipe 6.10 Afr's 12.3-13.1..........DA of 2200

2. Y pipe 6.12 Afr's 12.2-13.2..........Da of 2200

3. 2.25" straight pipe with borla pro xs 6.05 Afr's 12.3-13.3........DA of 2197

4. 2.25" straight pipe with borla pro xs 5.99 Afr's 12.4-13.3........DA of 2190

I can tell you this they sound F-IN amazing even w/out the dump pipe I'm going to put on. They pull hard as hell and the shift even feels firmer. The ECU hasn't even learned the new air yet and it still outperformed my old setup. I'll be posting track results hopefully this Friday weather pending.

Also one more thing, if I gained performance in the 0-60 I can promise you that it will only get better from 60-100 being opened up

See less See more

Reactions: 4

DRTYAZN

· #104 · May 25, 2011

Thanks DS! I think this just confirmed that I will be doing a true 2.5" to 3" dual exhaust system later this summer... JBA shorties w/ extended HF Cat B pipes, to true dual 2.5" pipes w/ some single chamber or race mufflers, undecided yet...

exits to the rear... make it look old school yet thunderous!!!

O-FiveCC

· #105 · May 25, 2011

Straight pipes FTW!

QShip

· #106 · May 25, 2011

BBtruck said:
Think they should be ban!!

Had me all pumped up. But I did put down a Honda Ridgeline at the light that was game, the dude thought he could mess with a Titan.. 65 mph and 3 truck length, silly driver said he had a blower but needs tuning. Sounded like it had something like a large leaf blower when he hit the gas. He wouldn't let me look under the hood.

L

LOL!! Not the Ridgeline thread!!

gweasel77

· #107 · May 25, 2011

Good work DS! You might be on to something? Im interested now to see what the str8 pipes will do @ the track!

2005 NISSAN TITAN SE KC
UP/REV (RB's TUNED)
4" Airaid MXP CAI w/ RC2 Black Hex Series Air Filter & GW77 4" Ram-Air Mod / TB Bypass Mod / FT90 Kit / LS7 TB / '08 IM / CSF 2 Core Rad / Nismo 170*F T-Stat / NGK Iridium IX Plugs / TruCool SR4588 / Nismo LT Header's / BerkTech B-Pipes w/ MF Hi-Flows / FlowMaster Y-Pipe / BORLA XR1 / Catch Can / Detriot TruTrac LSD / Grounding Kit / Burnout Mod / IAT "Reaper Mod" / LP Mod / MT ET Street P295/45R/17 DR's / Ruff Racing R286 22"s w/ 305/45/22 Toyo Proxes ST3's / Powerstop Performance Calipers / Slotted "Cryo" Frozen Rotors / Hawk LTS Pads / Goodridge SS Braided Lines / Gatorback Poly-V Serp Belt / Stillen Diff Cover / PRG Street Bars / Hellwig RSB / Bilstein 5100's & HD's / MOOG Springs / SpringTech Drop Shackles / PRG camber bolts / Morimoto XB 6K HID's / Full LED Retrofit / LED Cube Fogs / Diode Dynamics Tails, TRS Switchback Signals / Morimoto XB Reverse / StrongArm Hood Struts

kdoggs2008

· #108 · May 25, 2011

I had true duals put on my 2010 Titan with no x pipe or y pipe and it runs great. It comes straight off the headers to the cats and then the mufflers.

DRTYAZN

· #109 · May 25, 2011

kdoggs2008 said:
I had true duals put on my 2010 Titan with no x pipe or y pipe and it runs great. It comes straight off the headers to the cats and then the mufflers.

So you are running true duals? Each side to a separate muffler and exit, not a 2 in / 2 out muffler, otherwise that's just a huge X way down line... 'cause that's basically what I am currently running by having my dual pipes merge at the 3" muffler inlet then exit through the two outlets... Huge X down line, still restricts true free flow, but deamn it sounds good...

Gene 5.6

· #110 · May 25, 2011

deerslayer said:
O.K boys I couldn't wait here's the results using cipher and data logging all 4 0-60 runs. I did 2 runs with Y pipe and 2 runs with straight pipe off headers. Ran the y pipe setup then came home cut it off and went to town
REMEMBER ALL TESTS WERE DONE ON THE SAME ROAD, SAME EXACT SPOT
Run #
1. Y pipe 6.10 Afr's 12.3-13.1..........DA of 2200

2. Y pipe 6.12 Afr's 12.2-13.2..........Da of 2200

3. 2.25" straight pipe with borla pro xs 6.05 Afr's 12.3-13.3........DA of 2197

4. 2.25" straight pipe with borla pro xs 5.99 Afr's 12.4-13.3........DA of 2190

I can tell you this they sound F-IN amazing even w/out the dump pipe I'm going to put on. They pull hard as hell and the shift even feels firmer. The ECU hasn't even learned the new air yet and it still outperformed my old setup. I'll be posting track results hopefully this Friday weather pending.

Also one more thing, if I gained performance in the 0-60 I can promise you that it will only get better from 60-100 being opened up

Hot damn that's moving.

Yes! Get me some 60-100 results! I can't wait to see how those have improved with this setup.

08crewcab

· #111 · May 25, 2011

Sweet DS! That's great news definitely going to change what i do when I get these shortys put on

DRTYAZN

· #112 · May 25, 2011

08crewcab said:
Sweet DS! That's great news definitely going to change what i do when I get these shortys put on

Are you going to run OEM Cats, HF Cats, or No Cats with those headers? I'm about to order a set of MF HF Cats in the next month, for replacing primary cats, then run straight B Pipes for performance and hollow B Pipes for Smog Inspection...

08crewcab

· #113 · May 25, 2011

Straight pipes into the 2 berk b pipes into 22" maggy 3" out

Reactions: 1

DRTYAZN

· #114 · May 25, 2011

08crewcab said:
Straight pipes into the 2 berk b pipes into 22" maggy 3" out

Yeah, your T will be screaming afterwards...

Reactions: 1

deerslayer

Discussion Starter · #115 · May 25, 2011

Call me crazy but my bottom end tq feels better. Maybe the 2.25/3 was a bottle neck. Getting reso tips today.

Reactions: 2

ViperPowa

· #116 · May 25, 2011

The y pipe itself is just an inferior design, you know how I feel about y pipes lol. Nice gains bro! The least amount of bends you have in the exhaust the faster velocity aswell.

kdoggs2008

· #117 · May 25, 2011

DRTYAZN said:
So you are running true duals? Each side to a separate muffler and exit, not a 2 in / 2 out muffler, otherwise that's just a huge X way down line... 'cause that's basically what I am currently running by having my dual pipes merge at the 3" muffler inlet then exit through the two outlets... Huge X down line, still restricts true free flow, but deamn it sounds good...

No merging together true dual each pipe is separate and exits on each side of my truck. I can take pics if you want. I think it sounds great.

Reactions: 1

w00t692

· #118 · May 25, 2011

I don't see why anyone would run any setup other than separate duals through a nice x-pipe or true duals.

Should probably also hack up your headers and weld up a burns merge collector to it.

I'm assuming all the headers for you guys trucks are 4-1?

titanss

· #119 · May 25, 2011

w00t692 said:
I'm assuming all the headers for you guys trucks are 4-1?

Yep, Except for the DT's are a Tri-Y set up.

deerslayer

Discussion Starter · #120 · May 25, 2011

w00t692 said:
I don't see why anyone would run any setup other than separate duals through a nice x-pipe or true duals.

Should probably also hack up your headers and weld up a burns merge collector to it.

I'm assuming all the headers for you guys trucks are 4-1?

Thorleys are the tri y design.

101 - 120 of 222 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.