Please critique the performance of my car. What would you add/drop/change?
 

I asked people what they'd change about my car after bashing the lack of quality forced induction systems for our cars. Wondering what you'd change on my car.

Comments I had tonight were to remove the Grillcraft grill as it reducing airflow. I said it protects the radiators/intercoolers better.

I commented on exhaust and everyone said keep it how it is since I'm not going turbo.

I was told not to get the AP racing sprint kit as I don't need that much brake at the track.

Get the flex fuel kit as it's better for forced induction and I'll get more power, plus I can use it if I get a bigger/different supercharger or go back to N/A.

What comments does everyone else have? Here's my build thread parts list:

Parts to be installed:
Smaller slave cylinder
Chase Bays stainless steel clutch line
Shorai 3lb Battery and Kinetic Machine Lightweight Battery Tray w/ charger

Future Mods:
600HP Direct Bolt-in Rear Axles (after surpass 300whp)
Carbon Driveshaft (after surpass 300whp)
TRD momo steering wheel 360mm diameter
OEM integrated backup camera
Black Reverse lockout
Black door handles
Moto-East BRZ/FR-S/GT86 Flex Fuel Kit
DeatschWerks DW65c 9-651-1010 Fuel Pump kit
DeatschWerks 700cc Fuel Injectors
Driveway Lab's front splitter 3" w/ plastic guards and front kevlar
Velox rear diffuser w/ extra plates for diff
AP Racing Sprint Kit Front Brake System (street/autox pads Carbotech 1521, track pads Carbotech XP10&XP8)
Exedy clutch standard flywheel (after surpass 300whp)
Sprintex 335 upgrade kit (or sell 210 and get different larger PD blower)
Swap IS300 diff with 3.7 or 3.5 Final Drive to the BRZ
Racecomp Engineering TARMAC 2 COILOVERS or RaceComp Engineering 3 Way Clubsports
Whiteline front roll center kit
Raceseng Front camber plates
Raceseng Shock top rear top hats
Seibon carbon fiber hood style DV
Perrin Big MAF 3" intake
Alcantara center console
Alcantara w/ red stitch front speaker area to replace plastic
Alcantara shift boot
Alcantara ebrake boot
Alcantara a pillar
Alcantara b pillar
Alcantara knee pads
Alcantara door upper panel trim
Alcantara door arm rest


Here's a list of my mods without pics or explanation. More details below this list with pictures.

Wheels & Tires
Neuspeed RS10 18x8 *sold*
XXR 527 17x8.25 et 35 in gold
245/40R17 Bridgestone RE-11A tires (on XXR 527)
215/45R17 Bridgestone Blizzak LM-60 (on stock wheels)
Paint - Duplicolor primer sealer
Paint - JSC GrimmSpeed Gold Paint x8 cans
Paint - Duplicolor high performance wheel coating clear coat x2 cans
Greddy Short Lug Nuts - Red Open Ended
55mm center cap decals (Autobot) for XXR 527 wheels

Suspension
Grimmspeed strut bar in red *sold*
FRSmod front strut bar (I painted crinkle red)
RCE Yellow springs
Koni Yellow insert front and rear shocks
Perrin poly Rear sway bar end links
Perrin poly front sway bar End links
Perrin front end link brace
Whiteline KCA416 Front Camber adjusting bolt 16mm
Whiteline Rear Control arm - upper inner bushing (camber correction) KCA326
Whiteline Front Control arm - lower inner front Anti-Dive / Caster Correction Kit KCA434
Whiteline Front Control arm - lower inner rear bushing W0509
WhiteLine Rear Crossmember Mount Bushings KDT922 Positive Traction Kit
Whiteline Front Sway Bar with bushings Front 20mm Fixed BSF45
Whiteline Rear Sway Bar with bushings 16mm Adjustable BSR53Z
Whiteline Front Steering - rack & pinion mount bushing KSR210
Whiteline Rear Trailing arm - lower front bushing W63414
Whiteline KDT925 Rear Diff - mount in cradle & support outrigger insert bushing

Interior
Leather w/ red stitch knee area to replace plastic
Red led dome light, door light, and trunk light
Red led light strip (I put in foot area)
JPM Coachworks Alcantara w/ red stitch gauge cluster hood
Flossy Red Griptape Shorty with custom emblem
Cusco Spin Turn Knob Red (left spring in for stock ebrake behavior) *removed*
Perrin black ebrake knob
RedlineGoods Alcantara w/ red stitch radio and air bag surround
RedlineGoods sun visor black Alcantara with red stitching
RedlineGoods alcantara steering wheel with red center stripe *sold*
Ensolite sound deadening 53sqft + 2 yrds and raammat 8 squares
Sound deadening 50 Sq Ft Rattle Trap FatMat 80 mil
Center Console Trim heated seat button surround
Prova Wide-View Rear View Mirror Yellow
BRZ Cupholder Plates Red/Black
Car door laser projector Autobot
ScanGaugeII
Painted silver interior trim pieces Grimmspeed gold
Club4AG gauge cluster overlay
Shadow Professional 2 oil pressure gauge
ATI 60mm gauge pod for vent
Black traction control buttons replacing silver Part# SU00302486
SRP wide gas pedal

Exterior
GrimmSpeed License Plate Relocation Kit
Sonar/Spyder type 1 black LED tail lights *sold*
ROKBLOKZ mud flaps
Window Tint
Lamin-X Headlight Covers Yellow w/ foglight covers
Lamin-X Foglight Covers Yellow
Prova Yellow Wide-View Door Mirrors
Grimmspeed Hood Dampers
Debadge rear letters
Vinyl wrap hood black
Rear fog light kit #2
Rear Driveway Labs Type 1 diffuser
Subaru Fender Trim (painted Grimmspeed gold)
GrillCraft Front Lower Grill Silver (painted Grimmspeed gold)
SUBARU BRZ aluminum license plate frams with 86 logo
OEM Mud Flaps *sold*
GasketNinja.com tail light gaskets (for OEM tail lights)
Driveway Labs side skirts (painted gold) *Selling*
Diode Dynamics L.E.D. front turn signal bulbs (yellow)
Diode Dynamics L.E.D. side marker bulbs (yellow)
Tom's clear tail lights
Diode Dynamics headlight L.E.D. boomerang always on mod

Transmission
Perrin Rear Shifter Bushing
Whiteline Gearbox Positive Shift Kit KDT926
MTEC Shift Spring Kit
Clutch pedal spring removal mod
Clutch pedal height mod
Axle Exchange aluminum drive shaft *sold*

Engine
Moto East Ecutek tune
Paint manifold, ac, and alternator covers red
Innovate Supercharger
Innovate intercooler kit
Raceseng Cam Plate
Raceseng 70mm Innovate supercharger pulley
Radium Engineering Dual Catch Can kit for FR-S/BRZ (Sold one can as it wasn't needed)
Perrin red engine crank pulley *sold*
Perrin red silicon intake tube to throttle body *sold*
Perrin Oil Cooler
Perrin Radiator Hose Set Red
Perrin engine mounts
Perrin red cam solenoid covers

Lubricants and Fluids
Qwik Valve Fumoto Oil Drain Valve F108S 16mm-1.5
Pentosin 3 Liter; 75W-80 Transmission Oil
Motul Gear 300 75W90 Gear Oil 2QT for Differential
trans and diff gaskets for oil change
Subaru blue coolant
Motul 600 racing brake fluid
Mobil 1 advanced fuel economy fully synthetic 0w20

Intake
Nameless Performance supercharger intake tube double ceramic coated with methanol injection bung
Perrin 2.75" Intake System

Exhaust
Nameless Performance 2.5" High Flow Cat (Replaces Overpipe) with Helmholtz Resonator
Nameless 2.5" offset 6" muffler axle back *sold*
Invidia resonated Q300 catback
Grimmspeed Header Gasket
o2 sensor spacer
JDL UEL catless header

Brakes
Perrin master cylinder brace *sold*
Radium Engineering master cylinder brace
Carbotech AX6 front and rear pads (for track days only) *used up*
Speed bleeders SB1010-SS
Paint brake calipers red with G2 paint
MTEC Industries Stainless Steel Brake Lines

My comments are triple starred.

I think you really need to access performance or cosmetics....

Your list has a lot of cosmetic stuff for a car you are trying to focus on performance.

Things you should focus on:
Balancing cars weight
stiffening chassis
maxing out your current setup (I don't think you have reached it's potential)
choosing between track performance and street performance (two completely different things)

In my opinion your car is fine how it sits right now for the purpose you are using it...until you surpass the current layout why change anything?

Things to add later:

Coilovers - probably not needed as your current setup is decently geared toward performance driving but will help with better balancing the car

Brakes - Probably not for a long time our stock brake system is fine for 90% of applications...just get better pads and you are set

Weight Management - adding a bunch of cosmetic junk doesn't aid in performance at all you want to make sure you keep the weight down and possibly even strip weight

These are just my thoughts I'm not a professional but if I was dedicating my car to performance these are the things I would want to focus on...my car would also have a stripped interior and a bunch of other stuff removed to save weight but I daily it so I like to balance my performance/daily drivability/cosmetics

600HP Direct Bolt-in Rear Axles ***why?*** Get at same time I go over 300whp as cv joints are weak

Carbon Driveshaft ***why?*** Get at same time I go over 300whp. Can handle 800hp and it weighs half as much as stock

Driveway Lab's front splitter 3" w/ plastic guards and front kevlar ***you won't be able to park like you do any more*** Yes but the force will be strong with this one (strong in the force front will be)

Driveway Lab's type 3 rear diffuser ***why?*** Changed my mind to the Velox diffuser. Swap cause I had to cut my type 1 up to get the nameless and stock exhaust to fit without rubbing/hitting.

AP Racing Sprint Kit Front Brake System (street/autox pads Carbotech 1521, track pads Carbotech XP10&XP8) ***not needed yet*** Get at same time I go over 300whp or before after I go through my current 2 sets of rotors.

Exedy clutch standard flywheel ***wait until you exceed stock clutch first*** Get at same time I go over 300whp.

OEM integrated backup camera *bro, you installing two?*** Good catch. I only need this listed once.

Swap IS300 diff with 3.7 or 3.5 Final Drive to the BRZ ***NO*** It will help with less shifting, staying in power band longer, and increase fuel economy so why not? I reach max torque at around 3.5k rpm.

Mobil 1 advanced fuel economy fully synthetic 0w20 ***run 30, you track*** I was planning on switching to 5w-30 next year when track days get close

All that Alcantara has got to be good for an extra 50+ bhp!! :)

Track performance without sacrificing street-ability, nor gutting the car is where I'm like to be.

For stiffening the chassis Cusco makes a wide variety of bracing that I've been considering.

I'm buying Kevin's 3lb battery so that will reduce weight in the front which is where it's needed the most.

As long as the cosmetic stuff doesn't hurt performance, then I like having the little touches that make the car different/special.

Coilovers are on my to get later wish list with the RCE Tarmac 2 double adjustable or RCE Clubsport 3 way adjustable, with Raceseng top hats for better adjustment.

I'm thinking I should probably wait on brakes until I go through my front rotors and just buy new track pads to run with until the rotors are done. I have 2 sets of fronts with one that needs to be resurfaced.

I need to remember to stop at a freeway truck weigh station to see how much my car weighs.

Comments are italicized, all just represent my opinions. Obviously, your car, do what makes you happy :cheers:

I'd start by adding a word to this sentence

"Critique the performance my car"

Added the word Please in front. I forgot my manners my grandma taught me to always say please and thank you. :paddle:

I think you're still missing a word :word:

Just finally realized... It's crazy how the mind will add stuff in the head without seeing it.

comments in red

My drive shaft issues before when I had the aluminum version ended up not even being the drive shaft. It was the TRD quick shifter hitting the knuckle just before the drive shaft started, which was caused by the perrin end bushing that I didn't feel like removing after all the other stuff so I returned the TRD quick shifter instead. I probably should have kept the drive shaft, but the carbon one isn't as big around and would allow more clearance for exhaust piping, if I did get another.