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  1. Mechanical Problems & Technical Chat
    I am having a idle surge issue. It seems whenever I clutch into neutral and the rpms drop and then they surge up again maybe 200-400 rpms and seem to fluctuate ever so slightly if I'm moving, but once I come to a full stop and when I'm sitting it idles perfectly at 850 rpms. I'm currently tuning...
  2. ECU Tuning
    So I bought a 2012 Civic Si about 9 months ago.(in 2015) I absolutely love the car! However when i bought it, it already had a few modifications. I had no idea what they were at the time, nor did the dealership that sold it to me, other than (it looks like an aftermarket intake)...so whatever...
  3. Sedan
    Just want to share some teaser picture our sponsored Pasmag 2013 Civic SI sedan tuned by Honda project at Montreal Auto show.
  4. ECU Tuning
    I know the K20s were pretty finicky when it came to IAT's and would yank timing out when it even sniffed hot air. Are the K24s the same?
  5. ECU Tuning
    So I just had my car tuned and had an increase of 25% in midrange power but not much top end.. 3hp to be exact. My top hp was only 203.. I've seen post of people getting 225hp with the same bolt ons I have? My tuner said he tried everything under the sun to get the top end up and he couldn't. I...
  6. Exhausts and Downpipes
    Thought I would share some results of some initial testing of a Bisimoto prototype header design for the 2012 Honda Civic SI project. This is a baseline dyno sweep test of a brand new factory 2012 Honda Civic Si, at 11 miles on the odometer. This is a testbed in partnership with American...
  7. Si Only
    With my older Civic, i found Spoon Sports and T1R to be my top favorites for performance. I used some Injen parts in the past, but i ended up selling them within weeks of buying it. What are your favorite aftermarket performance brands?
    $1000 200whp 2012 2013 civic si 8th 9th 9thgenciviccom acceleration acura add adsorber advice aem afe afe or takedabuy aftermarket air approved arizona art article axle back backup ball bit black body bolt bolt on bolton boltons borla box or hydrocarbon braaah builds buy buying bypass cai car carb carbon cars cat catback ceramic chamber check chicagoland choices christmas city civic civic si clip cold color community concerns cone confirmed confused cons conversion coolant cotton coupe couple covers cure datalog dealer dealership deals decision direct discount discussion door downpipe drop dry dyno early engine exaust exempt exhaust expect facebook fiber filter filters finding fit fitment fix flashpro florida flow foam friday or christmas frustrated fujita full fun future gains gasket gauze gen general generally generations good grades greddy group hard helpintake high honda hondata hood horsepower houston hp or torque huge hybrid hydroshield hypertech iat ideas ideas or upgrades including increase increases increasing independently info ingen initial injen injen intake install install or pic or diy installation instock intake intake or full intakes issue jersey k20 k24 k24z7 kandn kit lack legal localish lottery louder love lowest make makes making mani manifold market mas material mechanic metal mod modified mods motor movement need help noise number numbers ons options order ordered oxnard p2r paid part parts passwordjdm pcd or downpipe people perform performance performances phoenix pics pieced plz power powerchamber prefer present price prl project pros prototypes pwjdm questions race racing ram rbc rbc intake manifold ready recently red reflash resale results rolling rrc running sale sales sedan sense serious setup short si mods sites size skunk skunk2 sound spacer spaer spend spotted sri stage status stock stuck stupid support systems t or b takeada takeda tbs tester testing thermal things thoughts throttle tips tones torque tsx tube tubing tuned tuning typhoon ultimate update upgrades user venturi visor void vtec wanna wanted warranties warranty won work worth wrinkle xmas
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