DeerHunter

Flow capacity may not count as much as intake temperatures. Given that the factory system takes in cool air from the leading edge of the hood, compared to hot underhood air for any aftermarket solution, I'd say it's entirely possible the factory wins. I doubt it's 40-50 hp better though.

722maa

For my country, a big YES, I'm not saying K&N is bad in any way, it's just not for this car in this country. Although it sounds marvelous especially during spool up and wastegate opening.

Once I put back my stock filter, I'll be easily making at least 30hp more, at the moment, I;m making 591, I retuned it yesterday, guy called me up in the middle of the night and told me his engineer ( a german ) has found a better way to tune my baby up, so I took it in the morning, two hours later its making 80 more hp than the first tune I did, + the stock air filter will add >30hp.

I really cant tell you how epic the car has become, mid range is just mind blowing, acceleration without launch control is twice as fast as with lc in stock mode, cruising in 7th gear, just need to over take, accelerate hard and the car doesn't even change gear, so much torque that it just goes and goes.

Gearbox is performing very very well, no complaints so far, shifts are quick and seemless, car sounds better, just a bit that is due to the removal of the catalyst.

I definitely need an exhaust system, sound + heat exertion.

All in all, I'm extremely happy with my results, I was kind of scared in the beginning, due to all the gearbox talks we had here, but now, I couldn't be happier, I hope you guys get a tune asap, cause this beast is really capable of putting a huge smile on your face

PS, i'll try making a 0-300km/h video since my limiter has been removed

Mohamed

HyperS4

Fantastic update, thanks for sharing! I put my stock airbox back in last night based on this thread.

tenspeed

Do a couple of 0-60's with and without the stock box and see if it makes a difference.

FateXer0

Is there any chance that your tuner can post the boost plot? Especially stock vs the new file? I am really curious what this car is boosting stock