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After market intake and exhaust or stock?

Discussion in '4 Cylinder' started by sciencerabbit, Apr 26, 2013.

?

What is best for MPG and power and 2nd gen 2.7L tacos

  1. Leave it STOCK or you will anger the Toyota gods!

    46 vote(s)
    33.8%
  2. Intake or filter only (sucking is better)

    9 vote(s)
    6.6%
  3. Exhaust only (blowing is better)

    13 vote(s)
    9.6%
  4. Exhaust and intake

    35 vote(s)
    25.7%
  5. Both and headers! who doesn't love a good header?

    33 vote(s)
    24.3%
  1. Apr 28, 2013 at 8:45 AM
    #21
    Justus

    Justus fucks not given

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    not so low, not so slow 2006 6 lug
    stockish
    Edit......didn't relize this was 4cyl.

    Wish the mobil skin showed a lil more info :(
     
    Last edited: Apr 28, 2013
  2. Apr 28, 2013 at 9:20 AM
    #22
    TacoDawgfan

    TacoDawgfan Hunker Down You Hairy Dawg!

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    5100's at 1.75, Rear leaf TSB, Moto Metal 951 16x8, BFG TKO2 265/75/16, AFe Stage 2 CAI w/pro dry filter, Access Loredo tonneau cover, Tinted windows, EGR in channel vent visors, Ultragauge, UGA drink coasters in the front cup holders, and an Evenflow car seat in the back seat
    I've had the AFe stage 2 CAI that I won on a drawing on TW on my V6 for a couple of months now and by my seat of pants dyno it seems slightly stronger and mpg's haven't changed aside from the change from winter gas. I hate the timing of it since the fuel changing so it's been hard to tell on the mpg's. I drive easy and haven't noticed a difference one way or another. It does seem to pull hills slightly easier and have a little more power at wide open throttle which I hardly ever do.

    I like it so far but must say since I won this intake that it wouldn't be worth the $300 that it retails for. I am however thinking about an exhaust to see if combined will make a difference. I'm not a fan of non V8 exhaust's so I will keep it mild if I do.

    My input on a CAI alone is mostly for the sound with very minimal power gains and only a loss of mpg's unless you drive easy then no increase/loss.

    And this is on a V6. It's been my understanding that as far as intakes or drop in aftermarket filters that the bigger the engine the more the noticeable gains. :notsure:
     
  3. May 2, 2013 at 7:59 PM
    #23
    OffRoadAdam

    OffRoadAdam Whitey taco woot woot

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    What did that setup run you if you dont mind me asking? the headers aint cheap!
     
  4. May 3, 2013 at 2:55 AM
    #24
    maxpower29

    maxpower29 Well-Known Member

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    2011 Tacoma 4x4 2.7 5 speed SWB
    All season mats, 2nd filter delete, DT header, Jardine cat-back, URD shifter, Bilstein 5100's all around at .85 front with Eibachs + .25 passenger/.5 drivers spacers and 1.5 AAL, 0w20 synthetic, Scanguage II, extra D rings, OEM backup camera+Mirror, bed mat, Extang Solid Fold, Popnlock 5300, Pro Comp 7089's 4.5bs 285/70/17 Revo 2s, De-badged
    Bought the header from the group buy. It him was like15-20 %off. Then the exhaust was new but off someone on here who bought it And didn't use it. Think I paid like 150 but then 100 or more to ship. Can't buy them anymore though they don't make them.
     
  5. May 14, 2013 at 10:39 AM
    #25
    PowerMullet

    PowerMullet New Member

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    Brennan
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    KNOBBY ASS TIRES
    hey so my Tacoma has literally been falling apart since i bought it two years ago. It only has 58,000 on it, but i just replaced the fan clutch and the exhaust manifold gasket. Unfortunately the exhaust leak has gotten worse, and i'm about to go out there and take the manifold off again and take it to a machine shop, that's all i know to do and that's what the haynes repair manual says.
    I'm interested in these Doug Thorley headers and if they actually work, the 4 banger needs more juice but i don't want to waste money on a part that may or may not work. If the manifold needs work i might just get the headers. I saw something about a discount for TW members?
     
  6. May 14, 2013 at 12:23 PM
    #26
    worthywads

    worthywads Well-Known Member

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    WOW that is literally falling apart alright. ;)

    Welcome. :D
     
  7. May 20, 2013 at 3:39 AM
    #27
    tooter

    tooter play every day

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    Greg
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    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    After running a Magnaflow for about a week until the sound bothered me, I went back to the stock muffler with a shortened pipe. Ah, quiet again... :)

    [​IMG]

    Couldn't tell any gas mileage difference, as there weren't enough miles driven.
     
  8. May 21, 2013 at 9:54 PM
    #28
    aznvtaco

    aznvtaco Well-Known Member

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    i didn't get the 4 for power and sound...if someday i want more power, i'd prefer to save the money on mods and just get the V6 someday. The amount of xtra power received from mods is minimal and you'd have to drive many many miles to actually break even on the money spent for saving mpg's. just my 2 cents
     
  9. May 23, 2013 at 2:28 PM
    #29
    district 5

    district 5 Well-Known Member

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    half of nothing
    IMO as far as exhausts go, the OEM is pretty good in terms in providing sufficient flow. Keep in mind that Toyota used the same diameter piping for the exhaust for the I4 and V6 tacomas (for second gen anyway). The "restriction", if any, will probably come from the muffler which i believe still flows fairly well. Changing out exhaust systems may have helped performance 10-15 years ago but recently many car manufacturers have been trying to squeeze performance out of their engines to provide the best gas mileage. So if there is any mpg or performance gains when changing exhausts, I believe it will be minimal. As for intake, second filter removal maybe? Or maybe I'm like an old man and love stock quiet trucks:p
     
  10. May 23, 2013 at 3:57 PM
    #30
    tooter

    tooter play every day

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    Vehicle:
    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    I added a header but kept the quiet stock exhaust. Just ordered this Injen intake...

    [​IMG]



    ...and will post a review once it's been run long enough to form an opinion of it.

    It's on the truck now...

    [​IMG]

    [​IMG]
     
    Last edited: Jun 9, 2013
  11. Jul 29, 2013 at 10:58 PM
    #31
    pklintworth

    pklintworth senior member

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    injen tuned cold air intake system, Lifted and 17 inch pro comp rims
    i have an injen tuned cold air intake and a magnaflow exhaust wich is droped right under the engin and its great dident hurt the millage at all thing it appoved it some untill i got my tires
     
  12. Jul 29, 2013 at 10:59 PM
    #32
    pklintworth

    pklintworth senior member

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    injen tuned cold air intake system, Lifted and 17 inch pro comp rims
    the injen cool air intake works perfectly one of the best cold air intakes ive ever had
     
  13. Aug 4, 2013 at 5:05 PM
    #33
    tooter

    tooter play every day

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    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    I'm totally happy with my Injen even though it's not technically a cold air intake. When the truck is moving, the engine compartment is flooded with ambient temperature air so I don't think it's really much of an issue.

    [​IMG]

    I got it because it only attaches in two places: to the throttle body, and to one rubber mount threaded post. This is perfect so that when I'm experimenting with the intake manifold spacer it will be really easy to move around along with the relocated throttle body.

    Also happy going back to the stock muffler as the low end torque returned. :thumbsup:
     
    Last edited: Aug 4, 2013
  14. Aug 4, 2013 at 5:07 PM
    #34
    Corndawg

    Corndawg Well-Known Member

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    :rofl: haha.
     
  15. Aug 4, 2013 at 5:19 PM
    #35
    tooter

    tooter play every day

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    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    You're right, Rich. :thumbsup:
    I lost low end torque when I changed the stock muffler so I put it back on again and will keep it on because I found out by experience that the exhaust system needs some backpressure for good low rpm torque. The engine only turns 2,000 on the freeway at 60mph anyways, so the stock exhaust system is nowhere close to being overtaxed in normal driving.

    The intake? Well, that's just for fun... ;)
    At 36 inches it's the longest 2.7 intake made and makes a neater sound than any exhaust ever could when you get on the gas.
     
    Last edited: Aug 4, 2013
  16. Aug 26, 2013 at 4:21 AM
    #36
    Maineiack

    Maineiack Well-Known Member

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    What does adding a CAI do to warranty? What about the AFE Pro Dry system I keep hearing about? I would like to add a drop in filter or something like that but feel like my money would be better spent with some 5100's and a 2" AAL for better towing capacity and looks. ha ha.
     
  17. Aug 26, 2013 at 4:24 AM
    #37
    rme

    rme Well-Known Member

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    Oh crap! I thought it would:)
     
  18. Aug 26, 2013 at 12:21 PM
    #38
    AL W

    AL W Well-Known Member

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    I traded a 2001 GMC Sonoma, 4.3l, V-6 for my Taco. I put a CAI and Magnaflow exhaust system on the Sonoma but for almost $700 I got zero increase in mileage and I did not feel any improvement in power. It did sound good at wide open throttle and the exhaust sounded best at idle. I'll be leaving my Taco stock.
     
  19. Sep 8, 2013 at 1:42 PM
    #39
    13Greysled

    13Greysled Well-Known Member

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    That's my plan eventually. Or if its available by that time, diesel!
     
  20. Sep 8, 2013 at 4:09 PM
    #40
    tooter

    tooter play every day

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    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    The LCE header actually made a pretty good change on my 2.7. In combination with the stock exhaust, it not only increased the torque peak, it also lowered that peak from 3,800 rpm down to 3,150 rpm on the dyno.
     
    Last edited: Sep 8, 2013
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