|
Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
|
Thread Tools | Search this Thread |
04-16-2017, 06:01 PM | #1 |
Junior Member
Join Date: Apr 2017
Drives: Asphalt Grey Scion FR-S
Location: Boulder, CO
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Planing Exhaust Upgrades for my FR-S
Hey, Everyone, I have been trying to decide on exhaust upgrades to improve the sound and power potential of my FR-S without going overboard on volume.
Exhaust System Goals: -Provide enough flow to increase power and accommodate a Jackson Racing supercharger in the future. -Improve exhaust tone without going overboard of volume (This is my daily driver so I want to avoid too much noise, even after supercharging). -Remain street legal (I am in Colorado, and not familiar with what you can usually get away with so any advice there would be great). -Add lightness. Any advice on putting a system togeather would be great. I have been reading up on different parts and listening to videos but its hard to compare a video to what I will experience IRL. Do I need a catted header to remain legal? If only one cat is required for legality would a catted header or front pipe be the better choice? Is 2.5" enough or should I consider something larger? I am thinking an equal length header (haven't decided which one or whether it should be catted). Something like an Invidia Q300, which leaves the front pipe to replace with a catted or resonated section to keep sound in check. Ideally, it would be louder than stock but not much even after supercharging, but at the very least I want to avoid any drone to keep its everyday driveability. Thoughts? |
04-17-2017, 12:54 AM | #2 | |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,866
Thanks: 28,787
Thanked 31,813 Times in 16,424 Posts
Mentioned: 708 Post(s)
Tagged: 2 Thread(s)
|
Quote:
There is a ton of possible exhaust combinations out there ...... and everyone has their own system that they may or may not like. I would suggest you put an aftermarket muffler on it and leave the rest of the exhaust system alone. If you want more power, go ahead and put a supercharger on it and get a tune. See, how simple that was ...... humfrz |
|
04-17-2017, 06:04 AM | #3 |
Huge E85 fan!
Join Date: May 2016
Drives: 2016 Scion FRS
Location: Tampa, FL, USA
Posts: 1,850
Thanks: 539
Thanked 1,010 Times in 605 Posts
Mentioned: 32 Post(s)
Tagged: 0 Thread(s)
|
In order to remain legal the law reads that you cannot modify or move any pollution control device. You have to keep both cats in the original positions in order to remain legal. You can replace them with hi flow cats.
|
04-17-2017, 07:51 AM | #4 |
Because compromise ®
Join Date: Jan 2012
Drives: Red Herring
Location: australia
Posts: 7,720
Thanks: 3,993
Thanked 9,339 Times in 4,125 Posts
Mentioned: 60 Post(s)
Tagged: 0 Thread(s)
|
__________________
My car is completely stock except for all the mods.
|
04-17-2017, 08:43 AM | #5 |
Not a troll
Join Date: Apr 2015
Drives: FR-S
Location: Canada
Posts: 5,104
Thanks: 8,237
Thanked 5,399 Times in 2,694 Posts
Mentioned: 266 Post(s)
Tagged: 4 Thread(s)
|
How many high flow cats out there are 50 state approved?
|
04-17-2017, 09:25 AM | #6 |
Senior Member
Join Date: Mar 2015
Drives: 2014 GT86
Location: Latvia, Riga
Posts: 4,333
Thanks: 696
Thanked 2,085 Times in 1,436 Posts
Mentioned: 53 Post(s)
Tagged: 1 Thread(s)
|
that. and how does replacing with non stock may mean NOT modifying them?
"Officer, i still have stock cats unmodified. Somewhere in basement" |
04-17-2017, 04:34 PM | #7 |
Senior Member
Join Date: Dec 2013
Drives: 2014 Scion FRS (Asphalt)
Location: Redmond, WA
Posts: 553
Thanks: 36
Thanked 171 Times in 141 Posts
Mentioned: 6 Post(s)
Tagged: 2 Thread(s)
|
Try to go header first, as you plan on supercharging later on down the road. As for catback try to get one that is tame. Aftermarket headers add a decent amount of volume as is. 2.5" diameter is the way to go with supercharging. 3" is more for turbo applications.
It might say that it is illegal to modify your cats, but it really depends on how strict your law enforcement is. For example, where I live (Washington) it is technically illegal to modify your cats, but I've never gotten pulled over or ticketed for it despite having a straight pipe with no cats at all. If anything, I've only gotten compliments from LE. |
04-17-2017, 04:58 PM | #8 | |
Join Date: Sep 2012
Drives: Subaru BRZ / Toyota 86 Experts
Location: Santa Fe Springs, CA
Posts: 1,028
Thanks: 359
Thanked 914 Times in 399 Posts
Mentioned: 154 Post(s)
Tagged: 3 Thread(s)
|
Quote:
|
|
The Following User Says Thank You to CounterSpace Garage For This Useful Post: | Jmonty (04-17-2017) |
04-18-2017, 10:23 PM | #9 | ||
Junior Member
Join Date: Apr 2017
Drives: Asphalt Grey Scion FR-S
Location: Boulder, CO
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Quote:
|
||
04-19-2017, 09:44 PM | #10 |
Junior Member
Join Date: Apr 2017
Drives: Asphalt Grey Scion FR-S
Location: Boulder, CO
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Just found another forum with good info on the CSG MXP Touring exaust.
http://www.ft86club.com/forums/showthread.php?t=115565 |
|
|
Tags |
csg, exhaust, exhaust modification noob, fr-s, jackson racing |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Intake and Exhaust Upgrades | Here2rock | Engine, Exhaust, Transmission | 10 | 12-22-2015 02:07 AM |
Looking for some upgrades | Rinzler_ft86 | Want-To-Buy Requests | 0 | 06-14-2015 01:31 AM |
upgrades to my frs | marine12 | Engine, Exhaust, Transmission | 9 | 04-10-2014 07:06 AM |
All Possible Car Upgrades? | pwnisher | Scion FR-S / Toyota 86 GT86 General Forum | 31 | 07-23-2013 12:27 PM |
Any header to axle exhaust upgrades? | ZC6BRZ | Engine, Exhaust, Transmission | 2 | 10-30-2012 10:00 PM |