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Thread: Exhaust mod thread

  1. #11
    Join Date
    Jun 2004
    Location
    had my evo since 2003 had my evo since 2003
    Posts
    1,075

    Default Exhaust mod thread

    i have a helix cat back and hks drop in and p-2 i dynoed at gruppe-s at 235whp then i add helix dp and test pipe then got it dynoed again at gruppe-s, 250whp.

  2. #12

    Default Exhaust mod thread

    Quote Originally Posted by thomas
    Quote Originally Posted by Option2
    My last dyno run I got 274WHP 274TQ with the following mods:
    P2, RMR DP, UR TP, HKS 30th Anniv Exhaust. I can post the dyno sheet too if you guys want.
    thats pretty good numbers

    whats UR TP?
    Hey thanks. UR TP = Ultimate Racing Test Pipe. I've swapped that out for a Ultimate Racing Hi-flow cat. Been feeling guilty about polluting the air. Doesn't feel as peppy but I recently added WORKS 269 cams to make up for the loss in performance from ditching the test pipe :twisted:

  3. #13

    Default Exhaust mod thread

    Quote Originally Posted by nebolic
    i dont think any aftermarket cats are legal. I believe all of them are illegal....

    Nebo
    as long as there OBD II approved, the aftermaket cat should have a stamp on it.
    In the words of Ceaser:Veni, Vidi, Vici...

    431whp 390tq e85 go green!!!! WOT special...

    Socalevo.net

  4. #14

    Default Exhaust mod thread

    Quote Originally Posted by GokuSSJ4
    Quote Originally Posted by nebolic
    i dont think any aftermarket cats are legal. I believe all of them are illegal....

    Nebo
    as long as there OBD II approved, the aftermaket cat should have a stamp on it.
    Correct, Jan is also correct but the cat is stamped carb legal which is more than enough in most caes, they are also working on further cert for it.

  5. #15

    Default Exhaust mod thread

    Quote Originally Posted by GokuSSJ4
    as long as there OBD II approved, the aftermaket cat should have a stamp on it.
    Yes, approved for very specific vehicles. No hiflow is legal for Evo yet.

  6. #16

    Default Exhaust mod thread

    I have tinted windows !

    After i ran it on da dyno all it said was HELLA FAST ! :shock:
    Evos Make me happy =]

  7. #17

    Default Exhaust mod thread

    ok here is what iv got.

    HKS hi-power catback exh.
    helix 3" DP
    Perrin 3" cat delete (w/ o2 simulator)
    Hallamen MBC
    Turbo XS drop in intake filter
    and solid pressure at 20 psi

    and i love the HKS not to loud but it sounds rutheless when i step on it.
    &quot;PUREVOL&quot;<br />Turbo XS intake, Halleman MBC, Helix 3&quot; DP, Perrin 3&quot; CAT DELETE, HKS Cat back exhaust and Clutch #4

  8. #18

    Default Exhaust mod thread

    Quote Originally Posted by Deviousone209
    ok here is what iv got.

    HKS hi-power catback exh.
    helix 3" DP
    Perrin 3" cat delete (w/ o2 simulator)
    Hallamen MBC
    Turbo XS drop in intake filter
    and solid pressure at 20 psi

    and i love the HKS not to loud but it sounds rutheless when i step on it.
    any Dyno #'S?
    ArcBrideCuscoDefiEndlessFullblastGanadorHksJspeedKicsMonstersport<br />NardiOrcPowerhouseRunduceSardTakataUltraVoltexYokohama<br />Zeal <br /><br /><br />GODZILLA IS COMING..

  9. #19

    Default Exhaust mod thread

    haven't dynoed yet. but here are my mods...

    3" helix dp
    3" catco hfc
    3" espelir cat-back exhaust
    P2 ecu reflash
    KN drop in filter
    gfb bov
    www.chrishophotos.com [photoblog]<br />member of DFINED.ORG

  10. #20
    Join Date
    Sep 2008
    Location
    FF
    Posts
    263

    Default

    i havent dynoed yet either but here is my list
    RS-R exhaust 3 inch
    RS-R dp 3 inch
    hallman MBC 20 psi
    Injen intake
    Injen uicp, licp
    Stock Cat
    JDM BOV
    XS power intercooler

    Possible Cams from previous owner.. To lazy to look!!! But i will soon

    I knew I forgot something meagen racing exhaust manifold.
    Last edited by wht03evo8; 02-27-2009 at 12:47 PM.

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