Low End TQ Loss with Catless FP/OP? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Mr.Impreza · 06-22-2016, 11:16 AM

Hey guys, so I'm planning to pick up at catless front pipe and overpipe.

However I stumbled onto a thread from 2013 about someone putting on a OP and saying they lost the low end TQ.
http://www.ft86club.com/forums/showthread.php?t=36825

Is this actually true or false? Do you lose low end TQ with a catless FP & op?

I also have the OFT Stage 1 tune with a catback/drop in filter if that matters.

Thanks!

jawn · 06-22-2016, 11:43 AM

Likely not.

D_Thissen · 06-22-2016, 11:55 AM

Doubt it. I didn't notice any difference when I installed mine.

wbradley · 06-22-2016, 12:01 PM

Why not just go catless header, where you will actually see performance results? You already have the OFT so there is a bit of room for improvement on smoothing out the torque dip and increasing peak HP.

The front pipe is the one thing I haven't changed, and I swapped the over pipe only because the header outlet was a bit too big for the stock over
pipe and it was a $99 investment.

shu5892001 · 06-22-2016, 12:03 PM

You won't feel any difference with any exhaust components on this 150whp car. Unless you go header and tune.

Mr.Impreza · 06-22-2016, 12:43 PM

Quote:

Originally Posted by wbradley

Why not just go catless header, where you will actually see performance results? You already have the OFT so there is a bit of room for improvement on smoothing out the torque dip and increasing peak HP.

The front pipe is the one thing I haven't changed, and I swapped the over pipe only because the header outlet was a bit too big for the stock over
pipe and it was a $99 investment.

I would but I'm worried about noise. If I could find a header that I could try on to see how loud it is with my exhaust, inside cabin noise and exhaust smell that would be sweet. But to buy a header not knowing what to expect apart from knowing its loud is a tough decision for me.

I was going to get the apexi catless header with there catted fp and op (the header only comes like this) because it keeps noise levels the same as stock thanks to the excellent resonator in the fp, but that option costs $3000.00Cdn.

I believe that is too expensive when I could just buy a header for $1000.00Cdn.

So basically this is why i'm in this situation with buying a fp/op. The front pipe I'm looking to get keeps the same sound levels as stock.

By the way, thanks everyone for the response!

Summerwolf · 06-22-2016, 12:58 PM

Save the money on the FP/OP and buy a catted header or something? Get some real gains out of the mod if you want to modify the exhaust.

Chanpion · 06-22-2016, 01:01 PM

EDIT: Removed.

06-22-2016, 11:16 AM	#1
Mr.Impreza Mr.Fujitsubo Join Date: Sep 2014 Drives: 2018 STI Location: Woodbridge Posts: 1,719 Thanks: 4,055 Thanked 1,552 Times in 784 Posts Mentioned: 31 Post(s) Tagged: 1 Thread(s)	Low End TQ Loss with Catless FP/OP? Hey guys, so I'm planning to pick up at catless front pipe and overpipe. However I stumbled onto a thread from 2013 about someone putting on a OP and saying they lost the low end TQ. http://www.ft86club.com/forums/showthread.php?t=36825 Is this actually true or false? Do you lose low end TQ with a catless FP & op? I also have the OFT Stage 1 tune with a catback/drop in filter if that matters. Thanks! __________________ 2018 Subaru WRX STI ~ The Weekend Car ~ 2015 Toyota 86 ~ The Sold Car ~ Build Journal OFT Stage 1 Tune Review

06-22-2016, 11:55 AM	#3
D_Thissen Senior Member Join Date: Jan 2014 Drives: '13 Argento FR-S (Sold) Location: Ontario Posts: 2,126 Thanks: 3,209 Thanked 1,439 Times in 855 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	Doubt it. I didn't notice any difference when I installed mine. __________________ My FR-S Build IG: dthissen

06-22-2016, 12:03 PM	#5
shu5892001 Ontario's FT86 Join Date: Aug 2012 Drives: 2016 Lexus GS-F Location: Toronto Posts: 685 Thanks: 261 Thanked 165 Times in 111 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	You won't feel any difference with any exhaust components on this 150whp car. Unless you go header and tune. __________________ 2016 Lexus GS-F PPE EL Headers, Joe Z X Pipe, Tom’s Racing Drop in, RR Racing Tune, RR Racing Motor Mount, RR Racing USRS. 430WHP. 2024 Volvo XC60 T8 Recharge

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
catless header vs catless frontpipe	steveholt	Engine, Exhaust, Transmission	30	10-10-2017 08:13 PM
A loss you never want to have happen	NahumCC	Off-Topic Lounge [WARNING: NO POLITICS]	23	04-25-2016 03:15 PM
Loss of Value	PoWn3d_0704	Northwest	3	05-12-2014 01:29 AM
Hi rev power loss?	lbroskee	Scion FR-S / Toyota 86 GT86 General Forum	3	09-29-2012 10:47 PM
CEL, Loss of Traction Light, Loss of Power	pituala	Issues \| Warranty \| Recalls / TSB	19	09-05-2012 12:23 PM

06-22-2016, 11:43 AM	#2
jawn Senior Member Join Date: Jun 2015 Drives: 2015 CWP BRZ Limited Location: NOVA Posts: 2,800 Thanks: 1,801 Thanked 3,946 Times in 1,757 Posts Mentioned: 105 Post(s) Tagged: 7 Thread(s)	Likely not.

06-22-2016, 12:58 PM	#7
Summerwolf Panda Trueno Join Date: Jan 2015 Drives: No twin now. Location: North Indiana Posts: 3,349 Thanks: 2,113 Thanked 2,409 Times in 1,332 Posts Mentioned: 17 Post(s) Tagged: 2 Thread(s)	Save the money on the FP/OP and buy a catted header or something? Get some real gains out of the mod if you want to modify the exhaust.

06-22-2016, 01:01 PM	#8
Chanpion Senior Member Join Date: Sep 2014 Drives: 13 FRS Satin Location: Alberta Posts: 162 Thanks: 25 Thanked 60 Times in 41 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	EDIT: Removed.

User Name		Remember Me?
Password