|
Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
|
Thread Tools | Search this Thread |
03-09-2017, 12:00 AM | #1 |
Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
Posts: 79
Thanks: 13
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Need some help with overpipe, front pipe, catback combos
Okay so I'm pretty sure I want to go with the greddy evo3 cat back which is 2.75 inched.. My question is will a 3 inch overpipe and front pipe seamlessly connect with this cat back or will I need matching 2.75 inch over and front pipe and where do I find them? If I need to go full 3 inch exhaust I will still be sticking with greddy exhaust (maybe perrin) but where can I find more 3 inch over/front pipes. I can't find many and all are rather expensive. I saw a one piece 3 inch over/front pipe but read reviews that it will sag and I would need to add engine mounts which I would like to avoid. Please feel free to air your opinions! Thanks guys!
Sent from my SM-G935T using Tapatalk |
03-09-2017, 06:45 AM | #2 |
Senior Member
Join Date: Aug 2014
Drives: 2015 FRS
Location: Texas
Posts: 237
Thanks: 199
Thanked 161 Times in 97 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
|
I'm pretty sure you want to run a full ACE exhaust.
Disclaimer: I'm not a rep for ACE, just a happy customer. |
03-09-2017, 09:43 AM | #3 |
Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
Posts: 79
Thanks: 13
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
I only see 1 full ace exhaust and it's only center outlet. I am looking for dual exit cat back and 3 in pipes. Also something that won't scrape when I lower my car.
Sent from my SM-G935T using Tapatalk |
03-09-2017, 09:51 AM | #4 |
Senior Member
Join Date: Jul 2013
Drives: 2013 satin white brz limited
Location: Cottage Grove MN
Posts: 1,049
Thanks: 162
Thanked 511 Times in 326 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
|
Question that should be asked is do you plan to go FI (forced induction aka turbo supercharger)? If not then no reason to run 3".
|
The Following User Says Thank You to jasonojordan For This Useful Post: | Tcoat (03-09-2017) |
03-09-2017, 09:52 AM | #5 |
Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
Posts: 79
Thanks: 13
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Yes it will have a turbo in the near future. All mods are purposely being planned ahead.
Sent from my SM-G935T using Tapatalk |
03-09-2017, 11:15 AM | #6 | |
Join Date: Aug 2012
Drives: S2000 CR
Location: California
Posts: 2,109
Thanks: 537
Thanked 1,721 Times in 956 Posts
Mentioned: 173 Post(s)
Tagged: 3 Thread(s)
|
Quote:
|
|
03-09-2017, 11:25 AM | #7 |
Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
Posts: 79
Thanks: 13
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
I just need to know if 3 inch over pipes and front pipes will seamlessly connect with 2.75 inch or 3 inch catbacks
Sent from my SM-G935T using Tapatalk |
03-09-2017, 12:34 PM | #8 | |
Undisputed El Presidente
Join Date: Jun 2012
Drives: Zenki 37J ZN6
Location: Stockton, CA
Posts: 11,571
Thanks: 9,382
Thanked 9,397 Times in 5,261 Posts
Mentioned: 374 Post(s)
Tagged: 33 Thread(s)
|
Quote:
You have to think most 2.5" pipes added to smaller diameter stock.pipes end up ok and this is basically the same thing |
|
03-09-2017, 12:38 PM | #9 | |
Senior Member
Join Date: Apr 2013
Drives: 2005 Toyota Camry
Location: 91745
Posts: 6,562
Thanks: 493
Thanked 6,093 Times in 3,029 Posts
Mentioned: 95 Post(s)
Tagged: 3 Thread(s)
|
Quote:
Any front pipe utilizing stock donut gasket will neck down to that point. Any exhaust utilizing stock donut gasket will neck down to that point. Worrying about exhaust piping without understanding what it bolts up to is not solving your problem. -alex |
|
The Following User Says Thank You to mav1178 For This Useful Post: | Tcoat (03-09-2017) |
03-09-2017, 12:41 PM | #10 | |
Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
Posts: 79
Thanks: 13
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Sent from my SM-G935T using Tapatalk |
|
03-09-2017, 12:44 PM | #11 |
Panda Trueno
Join Date: Jan 2015
Drives: No twin now.
Location: North Indiana
Posts: 3,347
Thanks: 2,113
Thanked 2,407 Times in 1,332 Posts
Mentioned: 17 Post(s)
Tagged: 2 Thread(s)
|
|
03-09-2017, 12:48 PM | #12 |
Join Date: Aug 2012
Drives: S2000 CR
Location: California
Posts: 2,109
Thanks: 537
Thanked 1,721 Times in 956 Posts
Mentioned: 173 Post(s)
Tagged: 3 Thread(s)
|
There is an adapter flange that you can run for the 3". A client is running 3" overpipe/front pipe to a 3" to 2.5" flange mated to the CSG Touring86. The Touring86 flange is designed to mate to a 2.5" front pipe outlet. It has been done.
|
The Following User Says Thank You to CSG David For This Useful Post: | RedRez86 (03-09-2017) |
03-09-2017, 12:50 PM | #13 |
Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
Posts: 79
Thanks: 13
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Okay I am asking for help not to point out my lack of knowledge on the subject which was the initial reason for me posting this thread in the first place. Makes sense? Thanks.
Sent from my SM-G935T using Tapatalk |
03-09-2017, 12:58 PM | #14 |
Senior Member
Join Date: Apr 2013
Drives: 2005 Toyota Camry
Location: 91745
Posts: 6,562
Thanks: 493
Thanked 6,093 Times in 3,029 Posts
Mentioned: 95 Post(s)
Tagged: 3 Thread(s)
|
If your exhaust can bolt up to the stock front pipe, it will neck down to the inner diameter of the stock donut gasket.
To say "I have a 2.75" exhaust and will it mate up to this or that front pipe or overpipe" is focusing on the wrong issue, because there will be a bottleneck known as the stock donut gasket. So, if you want a 2.75" or larger exhaust system (which includes front pipe for purposes of this discussion), you need to consider 1) whether your exhaust of choice reuses the stock donut gasket, and 2) if this singular bottleneck is going to cause you any problems with flow. If you are running a basic bolt-on FI kit, this is not going to be a bottleneck for you in terms of power. If you are going to do a kit and up it to 10-15PSI or more of boost, then you should consider an exhaust or front pipe with a flat flange. -alex Edit: obviously if you don't care about the bottleneck then this is a moot point of discussion. |
The Following User Says Thank You to mav1178 For This Useful Post: | CSG David (03-09-2017) |
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
OEM Header, overpipe, front pipe and catback for sale | Christopherkuchta | Engine, Exhaust, Bolt-Ons | 9 | 12-03-2015 03:02 AM |
WTB: Overpipe/front pipe and catback | ionhsmith | Want-To-Buy Requests | 4 | 09-25-2015 11:18 PM |
Header, Overpipe, Straight pipe, Cat back Diameter options/ Combos | FT_86_SM_GP | Engine, Exhaust, Transmission | 3 | 03-23-2015 08:32 AM |
Perrin Catback & Overpipe and HKS front pipe. Vorshlag SS brake lines | Rotarynerdette | Engine, Exhaust, Bolt-Ons | 14 | 04-23-2014 10:43 AM |
Agency Power Catback/front pipe & Overpipe (Brand New!) | 20FRS13 | Engine, Exhaust, Bolt-Ons | 13 | 01-22-2013 03:08 AM |