Mods advice for a b8.5 RS5?

[JackRS7]

I've recently been given the opportunity to pick up a one-owner, well maintained 2014 RS5 with 65k on the dash. I've test driven the car and I'm sold. I've decided I'm going to sell my E92 project car, which was heavily modified and very "OEM+" if I had to describe it. I love the body style of the RS5, so I want to do something similar to this new car.

I'm very new to the Audi community so I'm not sure where to begin mods-wise, and most of my experience comes from working on my E92. If you can't tell, I'm pretty lost, so if any of my goals are unrealistic please let me know.

Here's my wishlist for this car based on my initial impressions:

-First, make it run as reliably as possible. Preventative maintenance is my priority.
-Hit redline faster (lightweight flywheel?)
-Rev higher (I'd like to increase the RPM to the safe upper limit with supporting mods, so I can hit closer to the 8,250 mark more often. Owner told me that shifting around 7,900 was best when going fast, so the closer I can get to 8,250 before hitting the new redline the better, while still giving it 300-350RPM of room like the owner recommended.)
-Louder induction noise (Eventuri?)
-Higher-pitched exhaust (Armytrix)
-Fix the understeer/make it handle better at higher speeds
-Add 50-200 BHP while keeping it NA
-Weight reduction without sacrificing the interior (Painted carbon roof/trunk/hood, lightweight rims, etc.)
-If possible, make it shift more aggressively (like the e92) without damaging components

Can anyone provide me a comprehensive mod list to start working towards these goals.

[hahnmgh63]

First thing to do is a full service, that means engine oil and filter, Transmission (DSG) fluids (ATF & MTL) and filters (2), and Sport Diff fluids (ATF & MTL), Brake fluid is one regularly forgotten.
I've got the JHM Aluminum flywheel and it makes a difference, without the JHM tune which takes the lighter weight into consideration you may have some issues, their tune also raises the Redline a little, I'm running the Stg2 Catless tune, I've got their Catless headers. A few different exhaust out there so see what opinions are. I don't think any Cat back exhaust is going to give you more power, just a different sound. Maybe a very slight increase with an X-pipe. I'm running the full JHM exhaust with an X-pipe and it's a bit loud without the Cats which act like small mufflers.
For weight ruduction I didn't want to loose to go extreme but since I'm Catless (a few pounds there), I also removed the whole SAI system with the two electric pumps and installed a Seibon Carbon Fiber hood, Lightweight JHM Crank/Alt pulleys. All of those take weight off the front of the car. I also joined the Antigravity Lipo4 battery club which loses 40lbs off the back along with dumping the spare tire & kit, and along with Forged wheels (I stayed with the 9x20" size) loses another 40lbs. Some remove the rear seatback as it is heavy but I still have mine as it introduces more noise. Hey, I even did the ECS rear Carbon Fiber spoiler which replaces the plastic OEM one, to be anal, the OEM spoiler weighs 59oz, the ECS one is 28oz, almost 2lbs :) The ECS Carbon Fiber looks better on the Daytona Grey RS5 with the Carbon Fiber hood. I put a Seibon Carbon Fiber hood on my S5 first but had it painted as the S5 is Moonlight Blue, I was going to paint the hood for the RS5 but when I took it and the car to the body shop the body guys said I should consider leaving it Carbon as it looks good with the Daytona grey and I had to agree with him after mounting it and checking it out.

[s vier]

You can lose a lot of weight off these pigs without sacrificing drivability or aesthetics but it's not a cheap path:

CCBs RS5 fronts and RS6/7 rears (-42lbs)
BBS Fi-R wheels (-59lbs)
Titanium Lug Bolts (-1lb)
Recaro Wingbacks (-56lbs)
Akropovic Exhaust (-20lbs?)
Pull rear upper seat and rear belts (-30lbs?)
Pull Spare kit (-8lbs?)
CF hood (-?lbs)
Delete SAI (-?lbs?)

I had a weight loss thread on here somewhere that detailed exact numbers. The rotational or unsprung mass of the wheels and brakes made the biggest difference. I just swapped the Fi-R wheels on in place of the CH-R wheels and it was noticeable immediately. That went from 29lbs per corner to 20lbs. This was down already from the Rotor RS5 wheel at 34.9lbs. The Akrapovic, Bucket seats and rear upper delete feels like your passenger got out. My car is on stock tune but feels very light, nimble and responsive. Hood and SAI are next up to drop down.