HKS Hi-Power Racing Cat-Back Exhaust V2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Clipdat · 07-14-2017, 06:46 PM

Check out the design of this new HKS single exit, saw this posted on Kami Speed's exhaust post:

Version 2 HKS Hi-Power Racing Cat-Back Exhaust for the BRZ / FR-S!

- 75mm Diameter Piping
- 119mm Ti Tip
- 90 decibel

Pricing : $578.85 + Free Shipping (Withing lower 48 Continental US States, add tax in FL.)

[ame="https://www.youtube.com/watch?v=n9GHs7jMxaw"]SCION FR-S HKS Hi-Power Racing Muffler Ver.2 Exhaust Sound - YouTube[/ame]

JimmyMac · 07-15-2017, 03:40 AM

Nice, but does it drone at highway speeds? That is the question.

Kodename47 · 07-15-2017, 04:52 AM

Quote:

Originally Posted by JimmyMac

Nice, but does it drone at highway speeds? That is the question.

I would imagine that's what the Helmholtz resonator is for.

RedZaku · 07-15-2017, 01:55 PM

I think it may be for only 2017+

Edit: I lied the car in the video is 13-16

Clipdat · 07-15-2017, 03:39 PM

It's 3" piping, so I would assume that it does have some drone.

Quote:

Originally Posted by JimmyMac

Nice, but does it drone at highway speeds? That is the question.

JimmyMac · 07-15-2017, 09:04 PM

Quote:

Originally Posted by Kodename47

I would imagine that's what the Helmholtz resonator is for.

That doesn't always help. It basically shifts drone from one rpm range to another. I think the V1 of this exhaust also had a Helmholtz resonator but reports were that it droned like crazy. I was just hoping that the change to this style muffler from the canister style would help a little.

Quote:

Originally Posted by Clipdat

It's 3" piping, so I would assume that it does have some drone.

Ah yes, I ignored that 75mm part. hehe Oh well poop.

Clipdat · 07-15-2017, 11:07 PM

Yeah, I really wish that HKS would make these designs in 2.5" instead of 3". Would be a lot more tempting! In fact I would've already ordered the V1 if it was 2.5".

Quote:

Originally Posted by JimmyMac

That doesn't always help. It basically shifts drone from one rpm range to another. I think the V1 of this exhaust also had a Helmholtz resonator but reports were that it droned like crazy. I was just hoping that the change to this style muffler from the canister style would help a little.

Ah yes, I ignored that 75mm part. hehe Oh well poop.

finch1750 · 07-16-2017, 01:30 AM

Quote:

Originally Posted by RedZaku

I think it may be for only 2017+

Edit: I lied the car in the video is 13-16

Cat backs are the same. Only the axleback is different for 17+

Shark_Bait88 · 07-17-2017, 09:57 AM

Anyone know the weight difference between the V1 and V2?

oldnotdead · 07-22-2018, 12:12 AM

Quote:

Originally Posted by Shark_Bait88

Anyone know the weight difference between the V1 and V2?

I'm quite happy with the V2 system with stock headers. Drone is not a problem IMO. Did a little research and found that the V1 weighs 25.6 lbs while the V2 weighs 28.4 lbs. That compares to 39.7 lbs for the stock system.

iag48st · 03-19-2022, 01:43 AM

Sorry for the revival but I’m suppose to pick up a v2 tomorrow and I didn’t realize the seller stated 2017+ but I have a 2014.

Can anyone confirm that it is/isn’t compatible with my 2014.
Please and thank you.

Espi · 03-19-2022, 03:17 PM

Quote:

Originally Posted by iag48st

Sorry for the revival but I’m suppose to pick up a v2 tomorrow and I didn’t realize the seller stated 2017+ but I have a 2014.

Can anyone confirm that it is/isn’t compatible with my 2014.
Please and thank you.

Should fit okay

Quote:

Originally Posted by RedZaku

I think it may be for only 2017+

Edit: I lied the car in the video is 13-16

Here is a vid if anyone whats to hear. This exhaust is LOUD AF with one cat setup but tame when not pushing the gas hard. I have a friend with one

Not my car:

ohmikegoodness · 04-20-2022, 04:09 AM

Great exhaust, here is my setup with JDL UEL catted headers.

Espi · 04-26-2022, 06:50 AM

Quote:

Originally Posted by ohmikegoodness

Great exhaust, here is my setup with JDL UEL catted headers.

Are you running a stock or aftermarket front pipe?

07-17-2017, 09:57 AM	#9
Shark_Bait88 Senior Member Join Date: Jun 2014 Drives: 2013 Firestorm FR-S Location: Midwest Posts: 1,350 Thanks: 1,672 Thanked 865 Times in 481 Posts Mentioned: 12 Post(s) Tagged: 2 Thread(s)	Anyone know the weight difference between the V1 and V2? __________________ "Shark_Bait88, the man who’s spent the most money modding his stock FR-S and it’s still stock." -@jdnguyen

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07-15-2017, 03:40 AM	#2
JimmyMac Senior Member Join Date: Aug 2012 Drives: 2013 FR-S, 2016 Miata Club Location: NC Posts: 785 Thanks: 183 Thanked 258 Times in 171 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Nice, but does it drone at highway speeds? That is the question.

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RedZaku Member Join Date: Nov 2016 Drives: 2013 brz Location: Richmond,va Posts: 18 Thanks: 0 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I think it may be for only 2017+ Edit: I lied the car in the video is 13-16

03-19-2022, 01:43 AM	#11
iag48st Senior Member Join Date: Jan 2014 Drives: 10Series 0945 Location: NYC Posts: 252 Thanks: 35 Thanked 98 Times in 51 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Sorry for the revival but I’m suppose to pick up a v2 tomorrow and I didn’t realize the seller stated 2017+ but I have a 2014. Can anyone confirm that it is/isn’t compatible with my 2014. Please and thank you.

04-20-2022, 04:09 AM	#13
ohmikegoodness Member Join Date: May 2018 Drives: 2018 Crystal White Pearl BRZ Location: Inglewood CA Posts: 42 Thanks: 13 Thanked 7 Times in 6 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Great exhaust, here is my setup with JDL UEL catted headers.

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