Help me with catback please! - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

gpvecchi · 05-14-2022, 12:53 PM

I recently switched to catless header, so my STi axleback became too loud for my old ears. I put back the stock muffler, but this is too silent!
Can you please help me with choosing another catback/axleback (catback preferred)?

I'd prefer 60 mm, 2 round exits, japanese build with good flow; I thought of Blitz VSR, but I am skepticals, as there are reports of power loss; HKS Legamax Premium (axleback or catback); HKS Legamax Sports (it seems noisy with uncatted headers); Fujitsubo; Kakimoto; Apexi N1X (noisy?).
Suggestions? Thanks!

DarkPira7e · 05-14-2022, 01:04 PM

Why do you have to modify the axleback? You could change the front pipe to one with a "high flow cat" (Or no cat, if you're into that) and the stock muffler comes alive a bit more.

gpvecchi · 05-14-2022, 01:16 PM

I have the Apexi Super catalyzer with manifold, so, header, over pipe, and catted and resonated front pipe.

I forgot, I prefer a quiet exhaust at low revs, but a little growl when revving.

gen3v8 · 05-14-2022, 01:57 PM

I`m curious. Did you notice a power loss with the more quiet stock axleback?. I too have your taste in exhaust volumes.

gpvecchi · 05-14-2022, 02:56 PM

I fitted stock muffler yesterday, so I still have to test it. First impression, yes.

I particular at high revs, car seems slower. I'll update in the next days.

gen3v8 · 05-15-2022, 10:34 PM

Okay no worries Thanks. I was thinking of putting the stock axleback on mine to reduce some volume but i don`t want a noticeable power loss. I have PSR uel catless header with o/pipe. Stock front pipe and Invidia Q300 axleback.

gpvecchi · 05-16-2022, 03:42 PM

I confirm my first impressions. Car is more difficult to drive at low revs (accelerator is less linear) and it lacks power at high revs.
I'm now worried on which catback to buy, as it seems that Blitz VS/VSR has the same issue.
I'm repented I didn't buy the full Apexi Exhaust...

aKaGorganZola · 05-16-2022, 07:09 PM

I'm running the Perrin 2.5" resonated with a chatted front pipe and it's just about perfect for me. Some days I'm wanting to put my track front pipe in to get a little more volume but otherwise it's great. With the back seat down cruising at 74 it's easy to hear music even at like volume 5 but when you get on it there's definitely a rumble

Espi · 05-17-2022, 04:46 PM

I myself am between a Greddy Supreme SP Catback, HKS Legmax Sports S-Tail and a CSG Touring (not JDM though) for the not so loud factor. All priced well, great quality and sounds great. Good luck man!

gpvecchi · 05-18-2022, 04:19 PM

I have another question: how much the stock center section affects performances?
I mean, is it better too keep the stock midpipe with its kinks and bends but good silencing properties and a more "open" axleback, or a catback with a little more restrictive muffler?

Teseo · 05-18-2022, 08:03 PM

Try using stock front pipe

gpvecchi · 05-19-2022, 12:54 AM

Quote:

Originally Posted by Teseo

Try using stock front pipe

Apexi front pipe is quite than stock. This is not what I've asked.

norcalpb · 05-19-2022, 01:59 PM

Quote:

Originally Posted by gpvecchi

Apexi front pipe is quite than stock. This is not what I've asked.

"Just tested Apex'i front pipe only.

Halfway in sound between Berk and Fujitsubo, but not as quiet as Fujitsubo.

Stock everything: 83.9db
Fujitsubo front pipe: 83.9db
Berk front pipe: 86.4db
Apex'i front pipe: 85.7db"

https://www.ft86club.com/forums/showthread.php?t=103125

Looks like stock/fujitsubo may still be the most quiet.

spcmafia · 05-19-2022, 02:03 PM

Quote:

Originally Posted by gpvecchi

I recently switched to catless header, so my STi axleback became too loud for my old ears. I put back the stock muffler, but this is too silent!
Can you please help me with choosing another catback/axleback (catback preferred)?

I'd prefer 60 mm, 2 round exits, japanese build with good flow; I thought of Blitz VSR, but I am skepticals, as there are reports of power loss; HKS Legamax Premium (axleback or catback); HKS Legamax Sports (it seems noisy with uncatted headers); Fujitsubo; Kakimoto; Apexi N1X (noisy?).
Suggestions? Thanks!

Have you looked into a double resonated FP. I have the HKS one and have zero complaints. HKS Spec L as catback and it pairs quite nice.

05-14-2022, 12:53 PM	#1
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Help me with catback please! I recently switched to catless header, so my STi axleback became too loud for my old ears. I put back the stock muffler, but this is too silent! Can you please help me with choosing another catback/axleback (catback preferred)? I'd prefer 60 mm, 2 round exits, japanese build with good flow; I thought of Blitz VSR, but I am skepticals, as there are reports of power loss; HKS Legamax Premium (axleback or catback); HKS Legamax Sports (it seems noisy with uncatted headers); Fujitsubo; Kakimoto; Apexi N1X (noisy?). Suggestions? Thanks!

05-14-2022, 01:04 PM	#2
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,932 Thanks: 3,199 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Why do you have to modify the axleback? You could change the front pipe to one with a "high flow cat" (Or no cat, if you're into that) and the stock muffler comes alive a bit more. __________________ Turbo FR-S Build - Build Thread JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block

05-14-2022, 01:57 PM	#4
gen3v8 Barred Join Date: Oct 2020 Drives: My18 wrxsti My19 brzts Location: Botany Bay Posts: 1,144 Thanks: 729 Thanked 1,187 Times in 610 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	I`m curious. Did you notice a power loss with the more quiet stock axleback?. I too have your taste in exhaust volumes. __________________ Wait until my Flex capacitor hits 88

05-15-2022, 10:34 PM	#6
gen3v8 Barred Join Date: Oct 2020 Drives: My18 wrxsti My19 brzts Location: Botany Bay Posts: 1,144 Thanks: 729 Thanked 1,187 Times in 610 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Okay no worries Thanks. I was thinking of putting the stock axleback on mine to reduce some volume but i don`t want a noticeable power loss. I have PSR uel catless header with o/pipe. Stock front pipe and Invidia Q300 axleback. __________________ Wait until my Flex capacitor hits 88

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05-14-2022, 01:16 PM	#3
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	I have the Apexi Super catalyzer with manifold, so, header, over pipe, and catted and resonated front pipe. I forgot, I prefer a quiet exhaust at low revs, but a little growl when revving.

05-14-2022, 02:56 PM	#5
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	I fitted stock muffler yesterday, so I still have to test it. First impression, yes. I particular at high revs, car seems slower. I'll update in the next days.

05-16-2022, 03:42 PM	#7
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	I confirm my first impressions. Car is more difficult to drive at low revs (accelerator is less linear) and it lacks power at high revs. I'm now worried on which catback to buy, as it seems that Blitz VS/VSR has the same issue. I'm repented I didn't buy the full Apexi Exhaust...

05-17-2022, 04:46 PM	#9
Espi Senior Member Join Date: Sep 2019 Drives: 17 BRZ Location: GA Posts: 221 Thanks: 221 Thanked 161 Times in 91 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I myself am between a Greddy Supreme SP Catback, HKS Legmax Sports S-Tail and a CSG Touring (not JDM though) for the not so loud factor. All priced well, great quality and sounds great. Good luck man!

05-18-2022, 04:19 PM	#10
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	I have another question: how much the stock center section affects performances? I mean, is it better too keep the stock midpipe with its kinks and bends but good silencing properties and a more "open" axleback, or a catback with a little more restrictive muffler?

05-18-2022, 08:03 PM	#11
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,877 Thanks: 7,143 Thanked 2,922 Times in 1,769 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	Try using stock front pipe

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