Yonaka Scion FR-S Exhaust Prototyping - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mattles · 08-11-2012, 12:29 AM

SRT, you guys sure have some balls. Been around long enough to invent that design, have you?

Sheeeeesh... :|

Lee358 · 08-11-2012, 12:46 AM

Well this thread isnt going to last too long

Sent from my iPhone using Tapatalk

Tomzilla · 08-11-2012, 01:24 AM

Agency Power Catback - Y form

http://www.agency-power.com/catalog/...qnl09mi8ukf4n5

Lachute Catback - Y form

http://www.lachuteperformance.com/?p=1143

Autofactory - Y form

http://cdn.mkimg.carview.co.jp/minka...ad52cb3a18.jpg

Errybody's doin' it. Not patented, not stealing.

EDIT: Oh, you're talking abut dual canisters... My point still stands.

Yonaka · 08-11-2012, 09:40 PM

edited for civility.

Yonaka · 08-11-2012, 09:49 PM

Back to the actual content...

Y-fabrication.

A simple jig is made for initial fitment of the mufflers to the Y.

JoeBoxer · 08-11-2012, 10:01 PM

Damn i may have to buy the axle back just on how you handled that. I don't care for the split dual muffler look myself no matter who made it first.

kidgogeta · 08-11-2012, 10:02 PM

Saw the pics immediately thought SRT exhaust, from the color of the car to the tips. Scrolled down to see a forum war going on lol

Tomzilla · 08-11-2012, 10:22 PM

Looking at the pictures, do you guys think you'll have any chatter or vibration from the canisters being so close that they are nearly touching?

Thanks!

Yonaka · 08-11-2012, 10:47 PM

Quote:

Originally Posted by Tomzilla

Looking at the pictures, do you guys think you'll have any chatter or vibration from the canisters being so close that they are nearly touching?

Thanks!

Good question.

On this prototype, everything from the rear differential back is fully welded as one piece. Both mufflers and tips. So there wouldn't be any chatter between them, you can try to squeeze them together like one of those chest exercise machines and they don't budge. You can't get them to touch even if you wanted to. We considered joining the two mufflers together and making a nice weld between them as a visual thing at the back, but decided against it for now. Of course, if we notice any issues during road testing we will evaluate and make changes.

Again, this is still early pre-production work. We will tweek and adjust the mufflers and resonators in the system for both fitment and sound properties. It is very likely the final production model will have slightly more or less spacing between the two mufflers. It is a fairly long process to get new products to market, and most of that is early testing in order to weed out that type of potential issue before a products gets into the customers hands.

Cheddar · 08-11-2012, 10:58 PM

Can we maybe reduce the size of the mufflers? Those things are huge!

Tomzilla · 08-11-2012, 10:59 PM

Quote:

Originally Posted by Yonaka

Good question.

On this prototype, everything from the rear differential back is fully welded as one piece. Both mufflers and tips. So there wouldn't be any chatter between them, you can try to squeeze them together like one of those chest exercise machines and they don't budge. You can't get them to touch even if you wanted to. We considered joining the two mufflers together and making a nice weld between them as a visual thing at the back, but decided against it for now. Of course, if we notice any issues during road testing we will evaluate and make changes.

Again, this is still early pre-production work. We will tweek and adjust the mufflers and resonators in the system for both fitment and sound properties. It is very likely the final production model will have slightly more or less spacing between the two mufflers. It is a fairly long process to get new products to market, and most of that is early testing in order to weed out that type of potential issue before a products gets into the customers hands.

Perfect!

Chewie4299 · 08-11-2012, 11:18 PM

I do like the way it looks. I AM a fan of the dual canister look and those fat-boys being so close yet obviously not touching just looks attractive to me.

I'm pretty sold on the SRT exhaust after seeing all the work that went into them and the ingenuity going on with other products but depending on how this sounds it could be a close second.

Swift Racing Technologies · 08-11-2012, 11:24 PM

My 1st comment was made only because at the initial time of your post you were NOT a vendor, if you were a vendor at the time you made your initial post there would have been no comments made at all.

Glad to see that you are now a supporting vendor of the site. Welcome.

Sportsguy83 · 08-11-2012, 11:28 PM

Quote:

Originally Posted by Cheddar

Can we maybe reduce the size of the mufflers? Those things are huge!

IMHO, as long as they do a good job of canceling drone and controlling loudness, I don't mind since the only person seeing them will be you when installing it

08-11-2012, 12:29 AM	#15
mattles Proud of FR Layout Join Date: Jan 2012 Drives: 2013 Scion FR-S 6MT Location: Puget Sound, WA Posts: 984 Thanks: 101 Thanked 381 Times in 228 Posts Mentioned: 8 Post(s)	SRT, you guys sure have some balls. Been around long enough to invent that design, have you? Sheeeeesh... :\| __________________ --Matt // Flickr \\ Instagram

08-11-2012, 01:24 AM	#17
Tomzilla Senior Member Join Date: May 2012 Drives: '13 Premium MT BRZ Location: Haverford, PA Posts: 130 Thanks: 176 Thanked 77 Times in 38 Posts Mentioned: 1 Post(s)	Agency Power Catback - Y form http://www.agency-power.com/catalog/...qnl09mi8ukf4n5 Lachute Catback - Y form http://www.lachuteperformance.com/?p=1143 Autofactory - Y form http://cdn.mkimg.carview.co.jp/minka...ad52cb3a18.jpg Errybody's doin' it. Not patented, not stealing. EDIT: Oh, you're talking abut dual canisters... My point still stands. __________________

08-11-2012, 09:40 PM	#18
Yonaka Member Join Date: Jul 2012 Drives: Hot Lava FR-S Location: Ottawa Posts: 28 Thanks: 0 Thanked 23 Times in 15 Posts Mentioned: 0 Post(s)	edited for civility. Last edited by Yonaka; 08-11-2012 at 11:28 PM. Reason: making nice.

08-11-2012, 10:22 PM	#22
Tomzilla Senior Member Join Date: May 2012 Drives: '13 Premium MT BRZ Location: Haverford, PA Posts: 130 Thanks: 176 Thanked 77 Times in 38 Posts Mentioned: 1 Post(s)	Looking at the pictures, do you guys think you'll have any chatter or vibration from the canisters being so close that they are nearly touching? Thanks! __________________

08-11-2012, 11:18 PM	#26
Chewie4299 Spaceman Join Date: Jun 2012 Drives: 2013 Firestorm Scion FR-S Location: Wallingford, CT Posts: 1,581 Thanks: 854 Thanked 860 Times in 468 Posts Mentioned: 26 Post(s)	I do like the way it looks. I AM a fan of the dual canister look and those fat-boys being so close yet obviously not touching just looks attractive to me. I'm pretty sold on the SRT exhaust after seeing all the work that went into them and the ingenuity going on with other products but depending on how this sounds it could be a close second. __________________ 2013 Firestorm Scion FR-S - Car Journal

08-11-2012, 12:46 AM	#16
Lee358 Senior Member Join Date: Jun 2012 Drives: nissan frontier, DGM MT BRZ Location: North nj Posts: 1,576 Thanks: 404 Thanked 419 Times in 254 Posts Mentioned: 7 Post(s)	Well this thread isnt going to last too long Sent from my iPhone using Tapatalk

08-11-2012, 09:49 PM	#19
Yonaka Member Join Date: Jul 2012 Drives: Hot Lava FR-S Location: Ottawa Posts: 28 Thanks: 0 Thanked 23 Times in 15 Posts Mentioned: 0 Post(s)	Back to the actual content... Y-fabrication. A simple jig is made for initial fitment of the mufflers to the Y.

08-11-2012, 10:01 PM	#20
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s)	Damn i may have to buy the axle back just on how you handled that. I don't care for the split dual muffler look myself no matter who made it first.

08-11-2012, 10:02 PM	#21
kidgogeta Senior Member Join Date: Apr 2012 Drives: FRS Location: Canada Posts: 459 Thanks: 631 Thanked 103 Times in 71 Posts Mentioned: 0 Post(s)	Saw the pics immediately thought SRT exhaust, from the color of the car to the tips. Scrolled down to see a forum war going on lol

08-11-2012, 10:58 PM	#24
Cheddar Saving them pennies... Join Date: Apr 2012 Drives: 2013 FR-S Location: Miami, FL Posts: 641 Thanks: 44 Thanked 178 Times in 111 Posts Mentioned: 17 Post(s)	Can we maybe reduce the size of the mufflers? Those things are huge!

08-11-2012, 11:24 PM	#27
Swift Racing Technologies Join Date: Jun 2012 Drives: 2013 Scion FR-S Location: Boostville, MD Posts: 149 Thanks: 126 Thanked 321 Times in 78 Posts Mentioned: 2 Post(s)	My 1st comment was made only because at the initial time of your post you were NOT a vendor, if you were a vendor at the time you made your initial post there would have been no comments made at all. Glad to see that you are now a supporting vendor of the site. Welcome. Last edited by Swift Racing Technologies; 08-11-2012 at 11:55 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Parts Shop MAX USA prototyping	philstar	Suspension \| Chassis \| Brakes -- Sponsored by 949 Racing	12	03-04-2014 12:14 PM
Scion FR-S North America TRD exhaust	titusdrake	FR-S & 86 Photos, Videos, Wallpapers, Gallery Forum	39	11-12-2012 08:20 PM
Yonaka renderings	rick	FR-S & 86 Photos, Videos, Wallpapers, Gallery Forum	12	08-27-2012 10:42 AM
ISIS Performance Prototype Scion FR-S/BRZ Exhaust	Enjuku Racing	Engine, Exhaust, Transmission	35	07-19-2012 03:34 PM
Scion FR-S (FT-86 II Concept) Engine and Exhaust sound clips (VIDEO)!!	Sonydigital	FR-S & 86 Photos, Videos, Wallpapers, Gallery Forum	71	05-09-2011 11:41 PM

User Name		Remember Me?
Password