follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Scion FR-S Forum | Subaru BRZ Forum | Toyota 86 GT 86 Forum | AS1 Forum - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

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


User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-30-2018, 01:09 PM   #43
mrg666
pessimistic skeptic
 
mrg666's Avatar
 
Join Date: Apr 2016
Drives: '14 FR-S Monogram AT JRSC
Location: Upstate NY
Posts: 1,298
Thanks: 1,131
Thanked 712 Times in 471 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Garage
Installed the HKS Hi-Power Spec-L Ti catback yesterday. It is a high quality exhaust, feels solid, and fits without any problem. Sound and looks are exactly same as the videos I posted in the second page. So I will post my review later. The weight difference is 19 lbs; stock is 40, HKS is 21 lbs. It looks like a substantial number until one realizes that it is less than 1% of the curb weight. The sound difference compared to stock is hardly noticeable while cruising at freeway around 2500 rpm @75 mph. Sound is mildly loud at WOT. That ability of stealth acceleration is gone now. Everybody around knows that my car is accelerating now.

There is one problem with the sound that made me change my diving a little bit to avoid it. If I don't downshift at a slight uphill but push the throttle a bit to maintain my speed while cruising at low rpm, there is deep bass growl that annoys me a lot. So I downshift earlier now

Unrelated to the new catback, installation was much harder than I thought. The stock catback bolts were completely rusted. I had to drop the complete stock exhaust assembly (catback + mid pipe) in one piece. While doing that, one of the bolts on the mid-pipe/front-pipe connection snapped. I had to go buy another from Advance Auto. I had to buy a donut gasket anyway, since the HKS catback package didn't include it. Maybe I could have used the old donut gasket but I changed anyway.

There is no power difference that I could feel. Overall, I think I am happy with it.

Last edited by mrg666; 06-30-2018 at 01:25 PM.
mrg666 is offline   Reply With Quote
The Following 3 Users Say Thank You to mrg666 For This Useful Post:
microSDHC (06-30-2018), new2subaru (06-30-2018), SuperTom (06-30-2018)
Old 06-30-2018, 01:31 PM   #44
SuperTom
Senior Member
 
SuperTom's Avatar
 
Join Date: Feb 2014
Drives: C5 Corvette, '17 Toyota 86, Jeep XJ
Location: New Castle DE
Posts: 1,275
Thanks: 847
Thanked 683 Times in 414 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by mrg666 View Post
Installed the HKS Hi-Power Spec-L Ti catback yesterday. It is a high quality exhaust, feels solid, and fits without any problem. Sound and looks are exactly same as the videos I posted in the second page. So I will post my review later. The weight difference is 19 lbs; stock is 40, HKS is 21 lbs. It looks like a substantial number until one realizes that it is less than 1% of the curb weight. The sound difference compared to stock is hardly noticeable while cruising at freeway around 2500 rpm @75 mph. Sound is mildly loud at WOT. That ability of stealth acceleration is gone now. Everybody around knows that my car is accelerating now.

There is one problem with the sound that made me change my diving a little bit to avoid it. If I don't downshift at a slight uphill but push the throttle a bit to maintain my speed while cruising at low rpm, there is deep bass growl that annoys me a lot. So I downshift earlier now

Unrelated to the new catback, installation was much harder than I thought. The stock catback bolts were completely rusted. I had to drop the complete stock exhaust assembly (catback + mid pipe) in one piece. While doing that, one of the bolts on the mid-pipe/front-pipe connection snapped. I had to go buy another from the Advance Auto. I had to buy a donut gasket anyway, since the HKS catback package didn't include it. Maybe I could have used the old donut gasket but I changed anyway.

There is no power difference that I could feel. Overall, I think I am happy with it.


Thank you so much for this review. Are you still on stock Header + frontpipe?? If so that could the reason for not a ton of sound change. My setup is catless headers (switching from Gruppe-S UEL to ACE 350) & Invidia catted front pipe. So for me it will be much louder but hopefully driveable


That weight loss is highly substantial forget the 1% part. My setup after I install my sparco seats will put me at nearly exactly 2500lbs. I have HKS Legamax catback which is about the same as stock. So switching to this exhaust would put me at 2480lbs. Also loosing weight at the ends of the car and keeping the mass central is better weight loss. My goal is to hit 2450 without a gutted interior, only comfort I had to give up so far was AC at 15lbs.


Thanks again im glad the weight is where it is advertised at.
__________________
SuperTom is offline   Reply With Quote
Old 06-30-2018, 02:38 PM   #45
mrg666
pessimistic skeptic
 
mrg666's Avatar
 
Join Date: Apr 2016
Drives: '14 FR-S Monogram AT JRSC
Location: Upstate NY
Posts: 1,298
Thanks: 1,131
Thanked 712 Times in 471 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by SuperTom View Post
Thank you so much for this review. Are you still on stock Header + frontpipe?? If so that could the reason for not a ton of sound change. My setup is catless headers (switching from Gruppe-S UEL to ACE 350) & Invidia catted front pipe. So for me it will be much louder but hopefully driveable


That weight loss is highly substantial forget the 1% part. My setup after I install my sparco seats will put me at nearly exactly 2500lbs. I have HKS Legamax catback which is about the same as stock. So switching to this exhaust would put me at 2480lbs. Also loosing weight at the ends of the car and keeping the mass central is better weight loss. My goal is to hit 2450 without a gutted interior, only comfort I had to give up so far was AC at 15lbs.


Thanks again im glad the weight is where it is advertised at.
Yes, I still have the stock header and front pipe. The weight difference is so much more noticeable when you are the one carrying it. I didn't know stock exhaust was so heavy. The weight gain is like eliminating a full-size spare wheel/tire from the trunk.
mrg666 is offline   Reply With Quote
Old 06-30-2018, 08:51 PM   #46
86geek
Senior Member
 
86geek's Avatar
 
Join Date: Oct 2014
Drives: 2015 FRS Asphalt
Location: Honolulu
Posts: 1,000
Thanks: 1,295
Thanked 343 Times in 265 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by microSDHC View Post
I have the Perrin 2.5" resonated. It doesn't really drone and it sounds deep and has a slight rumble to it. It sounds "mature" in my opinion. If you're concerned about flow they do have 3" version.
I have Perrin 2.5 resonated. Deep sounding & loud when it needs be. Perrin FTW!
__________________


Opti-Coat & Cquartz Finest, Apexi Drop in Filter, 2.5 Perrin Res. Catback Exhaust
86geek is offline   Reply With Quote
The Following User Says Thank You to 86geek For This Useful Post:
LeonardoDaVinny (10-14-2018)
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
2.5 inch front pipe and over pipe to 3 inch catback opinions (Please give your advice RedRez86 Engine, Exhaust, Transmission 2 08-21-2017 01:40 PM
Invidia Catback Ti tip Catback - SoCal PRICE LOWERED Teejay Engine, Exhaust, Bolt-Ons 10 03-31-2017 03:21 PM
Catback - perrin 2.5 catback exhaust (non resonated) vs greddy sp supreme Raychee Engine, Exhaust, Transmission 11 05-26-2016 11:24 AM
Godsnow catback opinions? wise345 Engine, Exhaust, Transmission 1 02-24-2016 03:36 AM
Catback exhaust opinions? Ms. FR-S Southern California 34 10-22-2012 07:37 PM


All times are GMT -4. The time now is 07:13 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Garage vBulletin Plugins by Drive Thru Online, Inc.