9th gen civic si downpipe with stock exhaust

For a better experience, please enable JavaScript in your browser before proceeding. The downpipe (cat) and front pipes that replace our stock ones are larger in diameter (2.5" to 3") than the stock one (2"). JavaScript is disabled. I have the full race 3 in downpipe catted with my stock exhaust and it fits just fine. ). - As with any cat-less setup it stinks (the exhaust gases). Or just downpipe? Whatsup 9thgens, I got a 14 Si and need some opinions. Newer Than: Search this forum only. Then again it's a crapshoot whether you will be able to get the downpipe to work without a tuner to disable an O2. … No type of leakage or anything to worry about. For a better experience, please enable JavaScript in your browser before proceeding. Here goes on my impressions of the downpipe (I ran the cat-less for a couple weeks and now have the high-flow cat version). (catted) on stock exhaust. Has anyone found a dyno chart with just a front pipe change? As exhaust gases leave the combustion chamber, it starts cooling down and thus decrease in volume. The stock downpipe (cat) has a large opening and goes down to a smaller opening. Looks ok but im more pumped about the 3" UR Catless downpipe =). Remember, a 3" exhaust may invariably affect your down-low torque. - At low revs there is little to no difference in exhaust note (I was surprised by this). Messages: 5 Location: Panama City, Panama. Display results as threads It’s tiny. always thought those were under the car at least they were on all my cars i drove in the past. my question is can i use my old gasket and bolts on the si exhaust? Anthony Chen Well-Known Member. 2010 Lexus IS 350 Sport, 2006 Toyota Camry SE V6, 2013 Toyota Sienna, 2018 Honda ... the exhaust wont benefit becuase you have smaller piping with the stock downpipe and front pipe. The reason I'm asking is because aFe says this exhaust adds 10 additional whp to a stock Si. - The car is more responsive and it is even easier to chirp the tires into 2nd. I am personally going to stick with the version with the cat as the cat-less didn't pass the wife test with the odor. ok i just bought a used si 8thgen exhaust. View: http://www.youtube.com/watch?feature=player_embedded&v=XwVUVd0NRh4, http://rv6-p.com/civic-si12-downpipe.html, (You must log in or sign up to reply here. Or net any gain? Discussion in 'Exhaust & Downpipes' started by spdandpwr, Sep 26, 2012. 8th gen civic si stock exhaust on 9th gen civic lx. This platform makes the power from the tune itself, using higher octane fuel, or blends with E85. So has anyone figured out if its worth it to upgrade the front pipe and leave the stock down pipe in place? The downpipe (cat) and front pipes that replace our stock ones are larger in diameter (2.5" to 3") than the stock one (2"). The cat converter is on the downpipe. It sounds free flowing (I know not real helpful, but I don't know any better way to describe it). No! Sure, you'll make more peak numbers, but the slower exhaust velocity from the larger tubing will, like I said, result in lower gains in the low and mid RPM ranges where you do most of your daily driving. However, Vits turbo upgrade or big turbo, that’s where the 3 inch downpipe/front pipe and catback exhausts ( and other bolt ons ) will shine the most. A forum community dedicated to 9th generation Honda Civic owners and enthusiasts. Whatsup 9thgens, I got a 14 Si and need some opinions. Our stock turbo is the reason for all this. Something about Dyno Dynamics brand of dynos being heart-breakers. is that the catalytic converter on the front pipe? I heard good things about the RV6, but 3 reasons why I'm not interested, 1. I've read that the replacing the stock downpipe and frontpipe will allow our Civics to gain horsepower. So I have a stock downpipe with a 2.75" N1 exhaust and am looking to upgrade my DP to a 3" fullrace catted, along with the rear motor mount. - At higher revs, there is a some rasp and it is louder, but only slightly. Once tuned though i'll have them just turn off the second O2. So does the front pipe really make much of a difference? Full-Race 9th Gen Civic Si and Acura ILX V-band Exhaust System. Downpipe + Frontpipe? The larger diameter front pipe helps with power even if the rest of the pipe going to the muffler is only 2". We ran the tests on my car completely stock and I was shocked by the low dyno numbers. stock pipe is enough for the reduced volume. - Across entire rpm range there is no rasp and is very close to stock in terms of sound. RV6 Catted Downpipe/Front pipe now available! Home Forums > Civic Technical > Bolt-Ons And All Motor > Exhaust & Downpipes > RV6 2012+ Civic Si Bellmouth Downpipe Discussion in ' Exhaust & Downpipes ' … By the time it has exited the front pipe, it has cooled sufficiently and the 2" dia. No one has tested it or any exhausts so far as we know. The catalytic converter is the only true restriction in the stock exhaust if you are running the stock turbo. Discussion in 'Build Threads' started by Anthony Chen, May 9, 2014. Need to see a company come out with a cat delete downpipe in stock size and see what happens. In the end the front pipe has only been tested by PRL so far as I know. Full-Race Honda 9th Gen Civic Si 3" All-Motor Downpipe Features: 304 stainless steel construction; Mandrel bent, large radius bends; Precision TIG welded and purged; CNC'd oxygen sensor bungs "This is a YouTube video of the difference between normal exhaust and the catted downpipe/full exhaust." As far as I know, you need to use a defouler to pass emissions with any cat-less downpipe. I installed a defouler as I ended up throwing a cell. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. The person running the dyno indicated that it was the type of dyno in use that caused it to read low. Home Forums > Civic Technical > Bolt-Ons And All Motor > Exhaust & Downpipes > Downpipe/FP question Discussion in ' Exhaust & Downpipes ' started by K24RippiniT , Oct 5, 2017 . This high-flowing, yet remarkably quiet hand-made 3″ V-Band cat-back exhaust system will extract maximum performance from all motor (NA) and boosted applications Civic Si’s and Acura ILX models. Come join the discussion about performance, tuning, engine swaps, turbos, modifications, troubleshooting, maintenance, and more! Thanks again! I think the Si tuned with the stock exhaust without a cat would make basically the same gains as one that’s full bolt ons. So, looking at the stock downpipe and front pipe, I notice a few things. Search titles only; Posted by Member: Separate names with a comma. You must log in or register to reply here. 3" dp to 2.75" exhaust is fine, minimal difference in power like Meesh said. I’ll say this, most bolt ons are not pointless, definitely not pointless but they should not be prioritized. JavaScript is disabled. Also remember that you won't need an aftermarket front pipe if you plan on buying almost any of the exhausts out now as most if not all are shipping with a front pipe as part of the exhaust. I think the big boost is on the downpipe and, if you don't upgrade that, then the front pipe/exhaust w/front pipe will net you a slight gain but not the amount you get off the downpipe. The front pipe attaches to the downpipe. In this case the issue is the catalyst the exhaust gasses have to flow through, not the diameter.

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