Alright well I'm having a little trouble deciding my next mod. My current mods are CAI, O/r X, and AED 93 tune. I am looking to make the car a little more powerful.

I was looking at longtubes but a lot of people are saying they dont add much being that I already have an o/r x.

Also thought about adding an Aluminum Driveshaft?? Not sure it if does much but maybe it could drop .2 et??? I know it saves some weight on the drivetrain but does it vibrate the car to the point where I wont enjoy driving it? Like rattling drinks in my cupholder lol

One other thing I was considering was going to a 3.31 or 3.55 gear. I put 4.10's in my 2010 and loved it. Car was so much quicker off the line and the gears werent extremely long like on my 2012 auto now. Any thoughts on these and which ratio would be better??

Basically looking to improve the cars performance/power. I run my friends EVO all the time and he is still doing more mods and somewhat catching up. I want to put an end to that

 

Converter.

 

Thinking boss manifold and gears. I know a converter is something the tuner has to tune for again and I honestly dont feel like trying to perfect my trans tune again. I dont race too much at the track so I have voted that out.

So far mods to be installed by spring are nt555r's on the rears, bmr lca, bmr relo bracket, aluminum driveshaft, and boss manifold but I would like to hear others opinions first. Many have said they do not feel any loss down low and the pull you get from 4-7k is insane

 

I dint have an auto. So can't say how the Boss manifold will work on that. But from 5500-7500 there is a nice gain. It screams at the top end. Didn't notice any loss down low. Lugging around town still feels same as before the manifold. But I always just down shifted a couple gears if I wanted to go. And my mods are similar to yours. And have 3.31 gears in my M6

 

If you are not going to get a convertor than 4.10's, Boss Intake. If you would do a convertor than 3.55's and Boss Intake. Not much else out there unless you want to do NOS.

 

Converter hands down. Skip the gears.

 

boss mani only if u swap to 3.55s or 3.73s, 1pc Aluminum DS is also one of my fav mods, and jpc overaxle pipes for alittle weight loss and alittle gain