I was thinking about getting a cone filter but I'm not sure if it will affect the break in period. Should I wait until after the break in period before I add any mods to my car? Any help would be greatly appreciated

 

You have plenty of time to mod, just keep it the way it is for now till you now more about what you want to do with the car.

 

this will not affect your break-in, but i would recommend leaving it stock till you figure out what your goal is with this car. as for your filter question you should be fine after all its just a filter.

 

I would wait at least until after break-in.. Remember while your car is under 12K they will cover just about anything as long as you havent gotten your warranty voided. This is the adjustment period of your warranty and it has maximum effect during this period. After break in I would flog the **** out of it stock for a while to see if everything is solid.. Then mod. Even doing this I had a problem just afterwards that turned into a PITA.

I started modding at 5000 miles, developed a P0300 problem at 7500 miles that didnt get corrected until 12000 miles. The mods only complicated the ordeal or possibly caused the part failure. My car now has 28K miles and I know it's solid, all mfr defects repaired etc.

 

on an evo you should never replace you stock air box/intake w/o a tune. so if you want a cone filter kit you need a tune and before you get tuned like someone said before you need to know what you want to do with the car before the tune cause if you want to do any other mods your going to have to get tuned again "not cheap" but i really think you should get to know the car better before you do anything! if your new to evo's then stay on this forum and learn a lot about the car "very good info on this site" p.s. you dont have your civic anymore

 

^^^^

He has a X.

 

The same reasons apply to the X that do to the IX's. Replacing the intake if it has any effect at all could throw off the factory engine calibration. Now maybe it throws it in the right direction or maybe not. OEM ECU's also have a closed loop mode that self corrects AFR via fuel trims so if the intake leans out the AFR in closed loop mode (normal driving) the ECU will counteract that by richening the AFR, it does this by way of a fuel trim that is remembered when the car is turned off. Since fuel trims are also global they also affect open loop (WOT) operation so it adds fuel to counteract the lean conditions detected during closed loop operation often times erasing any gains of better air flow by having an overly rich AFR at WOT.

When you properly tune a car with a MAF and intake you recalibrate the MAF for the increased airflow/turbulance so the fuel trims are 0 with the new part - (if necessary)

 

You may want to have a look at the intake (test) threads on the X forums.

OP, wait to mod the car; there's plenty of time for it after break-in. This discussion should brutally illustrate the reasons for doing your own research. EvoM has a good search feature. Use it.

 

Thanks everyone! And yeah I'm going to wait and do more research. I was at a "car meet" last weekend and everyone was giving me crap for my box air filter. I was telling them that I just got the car but they wouldn't have it. I wasn't planning on modding my car just yet and that's why I came and asked you educated people. lol Thanks for all of the help and info. It's greatly appreciated.

 

I was explaining what the side effects of changing VE on a modern EFI engine without changing the engine calibration. Who's testing are you referring to? Are these cars that your referring to tuned? I did see Vivid's untuned results with additional boost, but If I were going that route I'd like to know what the fuel trims were doing. I was not trying to say intakes don't make power on X's or even IX's for that matter although after re-reading my post I can see why my statement could have been interpreted like that.

 

OK.

AMS and Buschur come to mind immediately.

No, they weren't. Unlike our cars, the X responds well to an intake untuned.

Personally, I have little faith in any mod without logging.

 

Every has a different perspective on breaking in a car.If i was u i would just drive the the car by flutering threw the rpm's range so the seals and ring's seal.Do a 1,200 mile break in then start driving it very hard,change the oil at 6,000 miles for the motor to loosen up any metal shavings.By adding a air intake filter you don't have to get tuned until you change the mass air pipe aka intake tube.The best thing to do is go to autozone and get a K&n drop in for now until you really start moding the car,also won't affect breakin period!!!!! added bonus will make the
stock blowoff valve and turbo alot louder and spool faster.

 

page 18 of AMS's testing.
https://www.evolutionm.net/forums/sh...322332&page=18

The X stuff looks really cool though and yes it looks much more mod friendly. I stand by everything I've said. And if anyone wants to mod their car untuned based on preliminary testing they can go for it.

 

Mr evo IX your an idiot, becuase the thread you posted changed the cars air fuel becuase they changed the mass air pipe.I said don't change the intake pipe just put a drop in fliter,if you researched alittle more you would see that all evo's run rich form the factory more so on the evo X's.Trust me you be fine with a drop in alot of people on these form think there guru's.

 

Grow up, name calling is for children. Did the OP ask about a drop-in? Did I say anything about your suggestions? Rich.. Really?