cat

  1. RV6 Catted DP & Emmissions

    First off I know this topic has been tossed around here, but each with varying degrees of differences from my situation, so I am tossing my hat in the ring to see if anyone has more specific information...So please don't just blow up at this post with "search around more" (thanks!) Y'all have...

  2. New York PRL race Catless V2 downpipe F/S

    hey all. i have a about a year old (less around 10K miles) PRL race catless V2 downpipe for sale. i ended up putting the cat back on my car because i intend on either selling or trading the car in soon and can't do that with this on it. it just needs the mounting hardware and bottom gasket and...

  3. California For Sale: Used RV6 Catted Downpipe and Front Pipe 1.5T

    hello all, selling my civic and looking up part-out my RV6 catted downpipe and front pipe combo for a 1.5T. Used about 10,000 miles and in great condition. Looking to get $500 for the duo. Reply or text me for fastest response (714) 348-7462. thank you guys happy holidays

  4. PRL Motorsports FK8 Civic Type-R High Volume

    PRL Motorsports is proud to announce our direct partnership with G-Sport Emissions Systems Powered by GESi. We have been working behind the scenes for many, many months, in an effort to change the downpipe game for the Honda community. Recently, the stars have aligned, allowing us to implement...

  5. Stock Downpipe (Cat) and Front Pipe Question

    I've read that the replacing the stock downpipe and frontpipe will allow our Civics to gain horsepower. The downpipe (cat) and front pipes that replace our stock ones are larger in diameter (2.5" to 3") than the stock one (2"). So, looking at the stock downpipe and front pipe, I notice a few...

  6. Si Should I remove all the cats?

    2017 Honda Civic Si sedan So I bought myself the FlashPro, deleted my mufflers, and I'm planning on also purchasing a PRL catless downpipe. I will tune my car afterwards. My question is; should I also remove the main catalytic converter to improve exhaust flow from the turbo? Will that help or...

  7. High Flow Catalytic Converter?

    Does anyone have opinions or suggestions on replacing the stock cat on the Si with a high flow one? Would it increase power? I'm not looking to replace the rest of the exhaust, but I'd like to see if there are options available for a new cat to increase power.

  8. High flow cat??

    Hello, just had questions. Would they make high flow cats that go right after the turbo? Not the one under the car.


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