follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Community Calendar Today's Posts Search

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.

Register and become an FT86Club.com member. You will see fewer ads

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-03-2017, 09:50 PM   #1
KennethJohnson
Member
 
Join Date: Jan 2016
Drives: 17' 86 16' GSXR-600 Bike life
Location: Sacramento
Posts: 30
Thanks: 15
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
New 86 Exhaust Questions

I might pick up an 86 and I have a few questions...

First of all, can I do the sound tube delete without any repercussions?
(I'll be looking at that more in the next few days)

Also, if I get a cat delete will I have to get my car tuned so it won't throw codes?

Will shops do that legally in CA?

Don't have to smog a new car for the first 6 years of ownership here =]
KennethJohnson is offline   Reply With Quote
Old 02-03-2017, 09:58 PM   #2
Cole
Not a troll
 
Cole's Avatar
 
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)
You can delete the sound tube no problem for about 2 bucks and 10 minutes of work.

The cat, I wouldn't risk myself in Nazifornia. But, yes, you should do a tune when you install a catless header.
Cole is offline   Reply With Quote
Old 02-03-2017, 09:59 PM   #3
gramicci101
Off Topic
 
Join Date: Feb 2014
Drives: 2014 Subaru BRZ Limited
Location: Vegas, baby!
Posts: 4,610
Thanks: 2,369
Thanked 4,243 Times in 2,170 Posts
Mentioned: 43 Post(s)
Tagged: 3 Thread(s)
Yes.

Yes.

No.

Doesn't matter. I think it's a federal offense to tamper with a correctly-functioning emissions system. Shops would be risking tremendous fines if they did that for you.
gramicci101 is offline   Reply With Quote
Old 02-03-2017, 10:00 PM   #4
Clipdat
Proud of BOXER
 
Clipdat's Avatar
 
Join Date: Dec 2012
Drives: Subaru Boxer
Location: Bay Area
Posts: 8,152
Thanks: 7,087
Thanked 6,872 Times in 3,680 Posts
Mentioned: 199 Post(s)
Tagged: 0 Thread(s)
1.) Yes
2.) No, no tune required if you're just removing the secondary cat in the front pipe with a catless FP.
3.) I suggest DIY, it's super easy!
__________________

Quote:
Originally Posted by humfrz
I'm old and lazy
Clipdat is offline   Reply With Quote
Old 02-03-2017, 10:15 PM   #5
KennethJohnson
Member
 
Join Date: Jan 2016
Drives: 17' 86 16' GSXR-600 Bike life
Location: Sacramento
Posts: 30
Thanks: 15
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Clipdat View Post
1.) Yes
2.) No, no tune required if you're just removing the secondary cat in the front pipe with a catless FP.
3.) I suggest DIY, it's super easy!
Oh fuck there's two cats? Derp more research time :P

But what about the O2 sensors tho? Won't they throw codes?
I'm assuming if there's 2 cats there is probably 4 O2s?
KennethJohnson is offline   Reply With Quote
Old 02-03-2017, 10:16 PM   #6
Cole
Not a troll
 
Cole's Avatar
 
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)
Quote:
Originally Posted by KennethJohnson View Post
Oh fuck there's two cats? Derp more research time :P

But what about the O2 sensors tho? Won't they throw codes?
I'm assuming if there's 2 cats there is probably 4 O2s?
No. There's only two, in front of and behind the primary cat which is on the exhaust manifold.
Cole is offline   Reply With Quote
The Following User Says Thank You to Cole For This Useful Post:
KennethJohnson (02-03-2017)
Old 02-03-2017, 10:18 PM   #7
k_mono_FRS
Member
 
k_mono_FRS's Avatar
 
Join Date: Aug 2014
Drives: 94 EG6 si, 97 DelSol si, 14 Monogra
Location: SoCal
Posts: 37
Thanks: 19
Thanked 15 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I drove my FRS on the wild side in SoCal. Tomei EL header, overpipe, Ti front pipe, and 60r exhaust. Best part is its lighter than half the weight of the factory setup and other drivers notice you in their blind spots. Loud and obnoxious but I'll have it no other way lol.

I don't know many shops that will delete your cats. If your willing to get your hands dirty and have a set of metric tools... you can do it by yourself in your garage.
k_mono_FRS is offline   Reply With Quote
Old 02-03-2017, 10:21 PM   #8
KennethJohnson
Member
 
Join Date: Jan 2016
Drives: 17' 86 16' GSXR-600 Bike life
Location: Sacramento
Posts: 30
Thanks: 15
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by k_mono_FRS View Post
I drove my FRS on the wild side in SoCal. Tomei EL header, overpipe, Ti front pipe, and 60r exhaust. Best part is its lighter than half the weight of the factory setup and other drivers notice you in their blind spots. Loud and obnoxious but I'll have it no other way lol.

I don't know many shops that will delete your cats. If your willing to get your hands dirty and have a set of metric tools... you can do it by yourself in your garage.
Is this a bolt-on job? If so EZ PZ

I can't weld though.
KennethJohnson is offline   Reply With Quote
Old 02-03-2017, 10:25 PM   #9
k_mono_FRS
Member
 
k_mono_FRS's Avatar
 
Join Date: Aug 2014
Drives: 94 EG6 si, 97 DelSol si, 14 Monogra
Location: SoCal
Posts: 37
Thanks: 19
Thanked 15 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by KennethJohnson View Post
Is this a bolt-on job? If so EZ PZ

I can't weld though.
Most aftermarket exhaust systems are plug and play... so yes bolt on. No welding required unless you buy a cheapo universal setup.
k_mono_FRS is offline   Reply With Quote
The Following User Says Thank You to k_mono_FRS For This Useful Post:
KennethJohnson (02-03-2017)
Old 02-03-2017, 10:57 PM   #10
KennethJohnson
Member
 
Join Date: Jan 2016
Drives: 17' 86 16' GSXR-600 Bike life
Location: Sacramento
Posts: 30
Thanks: 15
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by k_mono_FRS View Post
I drove my FRS on the wild side in SoCal. Tomei EL header, overpipe, Ti front pipe, and 60r exhaust. Best part is its lighter than half the weight of the factory setup and other drivers notice you in their blind spots. Loud and obnoxious but I'll have it no other way lol.

I don't know many shops that will delete your cats. If your willing to get your hands dirty and have a set of metric tools... you can do it by yourself in your garage.
can i run those downstream pipes without the header and still be good without a tune? no blowback? pops are fine i just dont want my engine to flex O.O
KennethJohnson is offline   Reply With Quote
Old 02-03-2017, 11:23 PM   #11
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 30,407
Thanks: 29,792
Thanked 32,807 Times in 16,828 Posts
Mentioned: 715 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by KennethJohnson View Post
I might pick up an 86 and I have a few questions...

First of all, can I do the sound tube delete without any repercussions?
(I'll be looking at that more in the next few days)

Also, if I get a cat delete will I have to get my car tuned so it won't throw codes?

Will shops do that legally in CA?

Don't have to smog a new car for the first 6 years of ownership here =]
As far as the sound tube, it's easier just to "stick a cork" in the outlet, which comes through the firewall in the right side footwell.


humfrz
humfrz is online now   Reply With Quote
The Following User Says Thank You to humfrz For This Useful Post:
Cole (02-03-2017)
Old 02-03-2017, 11:26 PM   #12
Cole
Not a troll
 
Cole's Avatar
 
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)
Quote:
Originally Posted by humfrz View Post
As far as the sound tube, it's easier just to "stick a cork" in the outlet, which comes through the firewall in the right side footwell.


humfrz
Yes but you you still have the sound tube in the engine bay.

It took me a 15 minute trip to the hardware store to get a plug and a clamp, and then 10 minutes to open a beer, and do the job. Worth it if the mod bug is biting.
Cole is offline   Reply With Quote
The Following User Says Thank You to Cole For This Useful Post:
KennethJohnson (02-03-2017)
Old 02-03-2017, 11:46 PM   #13
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 30,407
Thanks: 29,792
Thanked 32,807 Times in 16,828 Posts
Mentioned: 715 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Cole View Post
Yes but you you still have the sound tube in the engine bay.

It took me a 15 minute trip to the hardware store to get a plug and a clamp, and then 10 minutes to open a beer, and do the job. Worth it if the mod bug is biting.
Well, yes, but with my method ...... one could have had 3 beers .....


humfrz
humfrz is online now   Reply With Quote
The Following User Says Thank You to humfrz For This Useful Post:
Cole (02-03-2017)
 
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Exhaust Set-Up Questions Anderzz Engine, Exhaust, Transmission 5 08-26-2016 04:17 PM
Exhaust Questions! Bjeoen Engine, Exhaust, Transmission 3 12-02-2015 01:21 AM
J2 Quad Exhaust Questions HachiRo Cosmetic Modification (Interior/Exterior/Lighting) 4 01-23-2015 08:55 AM
Exhaust Upgrade questions Lord Peth Engine, Exhaust, Transmission 11 07-24-2014 11:32 AM
Exhaust Questions? 636 Engine, Exhaust, Transmission 6 10-19-2013 05:14 PM


All times are GMT -4. The time now is 05:26 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2025 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.