So i just got some new parts. Injen intake and up pipe, GReddy type s BOV, down pipe, test pipe and APEXi N1 exhaust. as well as a GReddy TT and Profec B BC. why does my car seem slower? Do i need to Re-Flash the ECU? and does anyone know the stock boost setting on the new Profec B because it is in total % of Boost the Stock Turbo charger can handle?

 

Yes, you need to get tuned. You need to be tuned for the intake. If the BOV is vented to the atmosphere it will likely make your car run like **** also.

 

Do you have a boost gauge? If not, I wouldn't go WOT without it.

 

Yeah, man, do some reading. You committed the cardinal sin of modding by adding parts without a tune, ESPECIALLY that intake and BOV. Also, it's not a surprise you got a complicated EBC in addition to the very expensive aforementioned intake and BOV. I suggest you spend less, read more, and treat your car properly. The end result will be lots of power, 100% reliability, and no issues. Unfortunately, you did the opposite by spendings more, reading less, and treating your car improperly.

 

EBCs have built-in digital boost gauges.

 

When I ran my HKS EVCIV, it would give boost estimates, but it was usually 5-6 psi off until I calibrated it with my boost gauge. I haven't run a Profec B so I cannot comment on its accuracy. Pump gas leaves little room for error, especially without a tune.

 

no i actually got a deal... all the parts for $450 b/c a dealership needed the stock parts... plus the BOV is reciculated just like stock...

 

i actually didn't hook up the EBC yet b/c the issue of no boost gauge...

 

this is very simple... get it tuned... thats all you can do..

 

still need a tune on it tho to make it run as good as possible. putting an intake without a tune messes with the way the MAF meters the airflow into your engine and can cause it to not run as good and possibly loss power due to incorrect MAF readings. not 100% sure how the BOV would effect when its a reciculator like the stock but i know venting to atmosphere really messes with the amount of air in the system. all in all a tune would do wonders

 

That's great that you got about $2000 worth of mods for $450, but I still would not have installed the intake without a tune even if you gave it to me. If you didn't even install the EBC yet, then you shouldn't have mentioned. We were trying to help you understand how you could lose power with the mods you listed, but those mods aren't all installed on the car.

So, that EBC doesn't have a built-in boost gauge? Weird.

 

Hell yeah i need to get it tuned the car uses hella gas b/c of it.... and i gotta drive to PA from FL at the end of this week ... how fun on gas whats the best place for a retune?

 

at least he posted in the noob section.. so we cant flame him much

 

There is no best place necessarily. You have to decide what is best for you. You can send your ECU to Dynoflash overnight, and it will get overnighted back. If you don't have time for that, you can go to a tuner in your area that does flashes. You'll have to decide what method suits your needs.

 

I am interested to know why the re-tune is needed? Surely the intake doesn't make that much of a difference? I know you should re-tune for best possible results, but surely it's not a must in this case?

I'm not saying you guys are wrong, but with just the intake and the BOV I don't see anything drastic that would desparately need a tune. I'd look at the bov and it's setup first perhaps?