overpipe? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ft86me · 03-27-2013, 05:21 AM

any gains with changing out the over pipe? currently have test and catback. brands people would recommend as well? thanks guys!

86_ZN6 · 03-27-2013, 05:31 AM

most gains are made from the frontpipe and overpipe

ft86me · 03-27-2013, 05:44 AM

well look like i need to invest in one of those and i'll have a true header back deal. but goddamn it's like 3 bills for that small pipe haha

Vukodlac · 03-27-2013, 01:26 PM

I like my motiv setup. Don't forget to heat wrap or ceramic coat you're overpipe if you get one.

Clipdat · 03-27-2013, 01:35 PM

First person I've seen referring to this being a "necessity". Got any background info about this?

I know a while back people were asking about the lack of heat shield on the aftermarket overpipes and people were basically saying they tracked the car multiple times w/o one with no issues.

Quote:

Originally Posted by Vukodlac

I like my motiv setup. Don't forget to heat wrap or ceramic coat you're overpipe if you get one.

Vukodlac · 03-27-2013, 02:46 PM

I would recommend it, the starter in the vicinity of that area. I just heat wrapped it because of that reason, but if people aren't having any issues then I guess its optional.

ShoNUFF · 03-27-2013, 03:33 PM

Quote:

Originally Posted by ft86me

any gains with changing out the over pipe? currently have test and catback. brands people would recommend as well? thanks guys!

Can you chime in on the testpipe catback configuration?

is your catback or frontpipe resonated?

how is the sound? Any rasp?
CEL's?
Vids?

reeves · 03-27-2013, 04:10 PM

Quote:

Originally Posted by 86_ZN6

most gains are made from the frontpipe and overpipe

For exhaust-related mods, most hp gains per dollar spent? maybe...
but most gains overall? a header, hands down.

zc06_kisstherain · 03-27-2013, 04:17 PM

my question- that couple hundred dollars for overpipe is worth it?
I am in searching for bolts-on mod but which one??
I sometimes cannot see it's worth to spend money on overpipe.

swift996 · 03-27-2013, 04:18 PM

I don't think people really grasp how exhaust flow works.

I've seen and would expect about 4-6whp with an overpipe/frontpipe combo NA. The headers are going to make a bigger impact. The stock overpipe isn't terribly restrictive but the stock front pipe has an OEM cat and that odd little collector where it bolts to the axle-back.

I plan to run the FA20Club header with OEM overpipe/frontpipe and OEM axleback/muffler. I'm expecting about 12-15 whp gains (with modification to my current tune). I might look into the overpipe/frontpipe combo, but I need to hear what it sounds like first.

swift996 · 03-27-2013, 04:20 PM

To answer your question, you can probably get more bang for your buck with an intake or tune. However, it's not a bad place to put some money. I'm hoping more suppliers make an offering. $400 for that combo is a little much to me. Maybe $200-250 and I'd already order it.

reeves · 03-27-2013, 04:23 PM

Just between the overpipe & front pipe... ON PAPER, it would seem like replacing the OEM catted front pipe with a resonated/straight pipe (or even hi-flo cat) would yield the better results.

A restrictive OEM cat seems more... well, restrictive than a crushed, twisted curvy pipe with no cat.

Tansey86 · 03-27-2013, 05:17 PM

Its also important to note that the higher you go with horsepower, the more restrictive the OEM or even a hi-flo cat will become, and the bendy exhaust route. If you plan on going FI in the future make sure you use large enough piping so you wont have to upgrade again later on.

Vukodlac · 03-27-2013, 07:09 PM

Ha, did you see the bends on that stock overpipe? That thing looks like ass.

As for intake goes, I would just put a drop in filter and save you're money.

03-27-2013, 05:21 AM	#1
ft86me Senior Member Join Date: Feb 2013 Drives: 2013 FRS Location: Endor Posts: 1,231 Thanks: 802 Thanked 349 Times in 212 Posts Mentioned: 60 Post(s) Tagged: 1 Thread(s)	overpipe? any gains with changing out the over pipe? currently have test and catback. brands people would recommend as well? thanks guys!

03-27-2013, 01:26 PM	#4
Vukodlac Senior Member Join Date: Aug 2012 Drives: Asphalt FR-S Location: Las Vegas, NV Posts: 117 Thanks: 33 Thanked 15 Times in 13 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I like my motiv setup. Don't forget to heat wrap or ceramic coat you're overpipe if you get one. __________________ -2013 Scion FR-S- K&N drop in. Motiv overpipe, hfc. Perrin unresonated. Stage 1 NA Tune ( Thanks Drift Office )

03-27-2013, 02:46 PM	#6
Vukodlac Senior Member Join Date: Aug 2012 Drives: Asphalt FR-S Location: Las Vegas, NV Posts: 117 Thanks: 33 Thanked 15 Times in 13 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I would recommend it, the starter in the vicinity of that area. I just heat wrapped it because of that reason, but if people aren't having any issues then I guess its optional. __________________ -2013 Scion FR-S- K&N drop in. Motiv overpipe, hfc. Perrin unresonated. Stage 1 NA Tune ( Thanks Drift Office )

03-27-2013, 04:18 PM	#10
swift996 Senior Member Join Date: Nov 2011 Drives: Subaru BRZ Limited 6MT Location: Winston-Salem, NC Posts: 2,432 Thanks: 712 Thanked 955 Times in 545 Posts Mentioned: 47 Post(s) Tagged: 0 Thread(s)	I don't think people really grasp how exhaust flow works. I've seen and would expect about 4-6whp with an overpipe/frontpipe combo NA. The headers are going to make a bigger impact. The stock overpipe isn't terribly restrictive but the stock front pipe has an OEM cat and that odd little collector where it bolts to the axle-back. I plan to run the FA20Club header with OEM overpipe/frontpipe and OEM axleback/muffler. I'm expecting about 12-15 whp gains (with modification to my current tune). I might look into the overpipe/frontpipe combo, but I need to hear what it sounds like first. __________________ Innovate Supercharged Black Limited BRZ 6-Speed MT(Build Thread) 2010 Cadillac CTS-V Sedan M6 w/550whp (Build Thread)

03-27-2013, 04:20 PM	#11
swift996 Senior Member Join Date: Nov 2011 Drives: Subaru BRZ Limited 6MT Location: Winston-Salem, NC Posts: 2,432 Thanks: 712 Thanked 955 Times in 545 Posts Mentioned: 47 Post(s) Tagged: 0 Thread(s)	To answer your question, you can probably get more bang for your buck with an intake or tune. However, it's not a bad place to put some money. I'm hoping more suppliers make an offering. $400 for that combo is a little much to me. Maybe $200-250 and I'd already order it. __________________ Innovate Supercharged Black Limited BRZ 6-Speed MT(Build Thread) 2010 Cadillac CTS-V Sedan M6 w/550whp (Build Thread)

03-27-2013, 05:31 AM	#2
86_ZN6 Senior Member Join Date: Apr 2012 Drives: 86 ZN6 Location: SF Bay Area, NorCal Posts: 4,682 Thanks: 1,317 Thanked 2,072 Times in 1,222 Posts Mentioned: 126 Post(s) Tagged: 1 Thread(s)	most gains are made from the frontpipe and overpipe

03-27-2013, 05:44 AM	#3
ft86me Senior Member Join Date: Feb 2013 Drives: 2013 FRS Location: Endor Posts: 1,231 Thanks: 802 Thanked 349 Times in 212 Posts Mentioned: 60 Post(s) Tagged: 1 Thread(s)	well look like i need to invest in one of those and i'll have a true header back deal. but goddamn it's like 3 bills for that small pipe haha

03-27-2013, 04:23 PM	#12
reeves Senior Member Join Date: Jul 2012 Drives: BRZ Location: ATL, GA Posts: 1,021 Thanks: 289 Thanked 397 Times in 265 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Just between the overpipe & front pipe... ON PAPER, it would seem like replacing the OEM catted front pipe with a resonated/straight pipe (or even hi-flo cat) would yield the better results. A restrictive OEM cat seems more... well, restrictive than a crushed, twisted curvy pipe with no cat.

03-27-2013, 05:17 PM	#13
Tansey86 Senior Member Join Date: Sep 2012 Drives: 2003 Subaru Outback Location: Long Island, NY Posts: 1,318 Thanks: 154 Thanked 529 Times in 300 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Its also important to note that the higher you go with horsepower, the more restrictive the OEM or even a hi-flo cat will become, and the bendy exhaust route. If you plan on going FI in the future make sure you use large enough piping so you wont have to upgrade again later on.

03-27-2013, 07:09 PM	#14
Vukodlac Senior Member Join Date: Aug 2012 Drives: Asphalt FR-S Location: Las Vegas, NV Posts: 117 Thanks: 33 Thanked 15 Times in 13 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Ha, did you see the bends on that stock overpipe? That thing looks like ass. As for intake goes, I would just put a drop in filter and save you're money. __________________ -2013 Scion FR-S- K&N drop in. Motiv overpipe, hfc. Perrin unresonated. Stage 1 NA Tune ( Thanks Drift Office )

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