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  1. C109Riders
    I am having a problem with backfiring on decel. I have installed the hard krome 2.5 inch exhaust and did the edelbrock air filter mod. there is no air leaking out of the pipes from what I can feel and I plugged the pair valve tubes with marbles. I did install the PCV but there wasn't an exact...
  2. How to, step by step
    Just got done plugging off the Pair system with some rubber caps. I was unable to find the sizes easily on the forums so maybe someone can find this of use. You will need to purchase the Help! by Dorman (Part 02253) Bypass Cap Assortment approx $4.99 at Advance Auto and/or AutoZone. This...
  3. M109R Shop Talk
    I am about to install the pair valve block-off plates and my exhaust. I have the big air kit. Everything I have read says re-installing the air box is a major PITA. SO, has anyone completely removed the air box and run directly from their filters to the intake? Is that part of the bottle-fed...
1-3 of 3 Results