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  1. stock 2013 SI should i do downpipe and exhaust?

    Bolt-Ons and All-Motor
    just picked up a really clean stock 2013 civic si off the lot low miles 20k im going to be doing some engine mods over the next year or so but for staters i just ordered an HPS CAI to install this weekend will be getting my hondata next month and was wondering as far as exhaust goes is it worth...
  2. HPS silicon intake tube

    Intakes and TB Spacers
    I sent hps an email to ask about eta for a silicon intake for the 9th gen si and was informed they are in the R&D stage, have a prototype out but they need some one nearby to let them try it out before they can release...I'm 3k miles away so I'm no use..but just wanted to spread the word
  3. hps (intake tube) needs test car in California - 91746

    Intakes and Spacers
    hello.. usually im just a lurker but i've been in contact with max at hps silicone hoses and they have an intake tube ready for testing but need a car for final fitmant/dyno gains etc.. if anyone is interested or available to take one for the team, so to speak, please contact max at hps...
  4. 2011 Hps SRI on 2012 test for 1.8L

    Intakes and Spacers
    im trying to test a short ram intake from the 8th gens to see if they work on our 9th gens. from all my research i think they will fit great. just dont want to waste a whole lot of $ if they dont. anyone know of any cheap designs that are somewhat the same as the production line models (aem...
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