Full exhaust System for NA yaris - Page 2 - Toyota Yaris Forums

harveyjai · 11-14-2008, 10:50 PM

so...back to topic..

Therefore my setup would be 4-1 Headers ----> single cat--->mid pipe-->bolt on muffler?

CASTREX · 11-14-2008, 11:20 PM

yeap!

harveyjai · 11-15-2008, 07:42 AM

cheers,

just one more thing, wht that coating that u put on the headers that can smoothen the air flow inside? Would it be better if i do that instead of getting a new header?

Yoda · 11-15-2008, 12:41 PM

so i thought the header would give like 1 +whp. thats what i read a while back pre hack. does the mid pipe help that much? what can the expected gains be? and does it work with an axle back exhaust

CASTREX · 11-15-2008, 01:59 PM

Quote:

Originally Posted by harveyjai

cheers,

just one more thing, wht that coating that u put on the headers that can smoothen the air flow inside? Would it be better if i do that instead of getting a new header?

You probably are talking about a ceramic coating. A ceramic coating can be applied on the outside, inside or both of an exhaust manifold or header. The function of the ceramic coating is to contain the heat within the pipe. Is not used to smooth anyting out.
Yes is useful, the DC header comes pre-coated, but the idea is to minimize the heat disipation thru the pipe.

Quote:

Originally Posted by Yoda

so i thought the header would give like 1 +whp. thats what i read a while back pre hack. does the mid pipe help that much? what can the expected gains be? and does it work with an axle back exhaust

I don't think that no one has made so far any intensive back to back dyno testing of Yaris exhaust components.
There are no back to back testing of the different header options or how they work along with other exhaust modifications. So any answer to your question will be mostly expeculation.

So all the comments you hear come from personal opinions (butt dynos).

harveyjai · 11-15-2008, 04:48 PM

ceramic coating..
Thats it!!

Would you apply them on everything?
or would it only be worth it to apply on headers?..umm..

richardholdener · 11-16-2008, 12:29 PM

Just a note for this post-I am testing the true long-tube header on the Yaris today. If it works well, we plan on making a long-tube and complete 2.25-inch mid pipe exaust to go from header to axle back. We will also make an off-raod pipe to mate the stock shorty header to this exhaust as well. I'll post as sonn as we have dyno results.

CASTREX · 11-16-2008, 05:38 PM

Quote:

Originally Posted by harveyjai

ceramic coating..
Thats it!!

Would you apply them on everything?
or would it only be worth it to apply on headers?..umm..

I will say only the header... you will have a hard time coating the rest of the exhaust as most of the ceramic coatings need some time in the oven to cure...

eTiMaGo · 11-16-2008, 12:37 PM

now that's an awesome idea, richard

fingers crossed!

at3GG · 11-16-2008, 12:51 PM

Richard just keeps it coming...

t0m4s · 11-22-2008, 01:49 PM

Castrex, in your t-sport that's a round muffler magnaflow 5 inches?

Spades · 11-23-2008, 01:59 AM

custom is the way to go IMO, and if you delete the cats be sure to get a O2 simulater or build one with the proper ohm resistor.

i am running a custom catback set up...under $200US for everything. I have pics in my garage of part of the pipe work.

11-16-2008, 12:37 PM	#9
eTiMaGo vroom vroom View User's Garage Drives: lil red 5-door Join Date: Sep 2006 Location: Bangkok, Thailand Posts: 7,744	now that's an awesome idea, richard fingers crossed! __________________ The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ...

11-16-2008, 12:51 PM	#10
at3GG Drives: 07 metmet LB Join Date: Oct 2008 Location: VA Beach Posts: 648	Richard just keeps it coming... __________________ F5 CAI, MR axleback, MR Header, NST SSK. Full Exhaust wrap, AT3 Custom SSK Konig Heliums 15x6.5 Black Tanabe Df210's

11-23-2008, 01:59 AM	#12
Spades The Hated One View User's Garage Drives: 07 White Manual Sedan Join Date: Sep 2006 Location: Oregon,USA Posts: 390	custom is the way to go IMO, and if you delete the cats be sure to get a O2 simulater or build one with the proper ohm resistor. i am running a custom catback set up...under $200US for everything. I have pics in my garage of part of the pipe work. __________________

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11-14-2008, 10:50 PM	#1
harveyjai Touge Driver View User's Garage Drives: Yaris YRX Join Date: Oct 2008 Location: Sydney, Australia Posts: 82	so...back to topic.. Therefore my setup would be 4-1 Headers ----> single cat--->mid pipe-->bolt on muffler?

11-14-2008, 11:20 PM	#2
CASTREX Who said Yaris was slow? View User's Garage Drives: Yaris T-Sport 2008 Join Date: Nov 2006 Location: Costa Rica Posts: 1,287	yeap!

11-15-2008, 07:42 AM	#3
harveyjai Touge Driver View User's Garage Drives: Yaris YRX Join Date: Oct 2008 Location: Sydney, Australia Posts: 82	cheers, just one more thing, wht that coating that u put on the headers that can smoothen the air flow inside? Would it be better if i do that instead of getting a new header?

11-15-2008, 12:41 PM	#4
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	so i thought the header would give like 1 +whp. thats what i read a while back pre hack. does the mid pipe help that much? what can the expected gains be? and does it work with an axle back exhaust

11-15-2008, 04:48 PM	#6
harveyjai Touge Driver View User's Garage Drives: Yaris YRX Join Date: Oct 2008 Location: Sydney, Australia Posts: 82	ceramic coating.. Thats it!! Would you apply them on everything? or would it only be worth it to apply on headers?..umm..

11-16-2008, 12:29 PM	#7
richardholdener Drives: 2008 Yaris hatch Join Date: Oct 2008 Location: Las vegas, NV Posts: 183	Just a note for this post-I am testing the true long-tube header on the Yaris today. If it works well, we plan on making a long-tube and complete 2.25-inch mid pipe exaust to go from header to axle back. We will also make an off-raod pipe to mate the stock shorty header to this exhaust as well. I'll post as sonn as we have dyno results.

11-22-2008, 01:49 PM	#11
t0m4s 1NZ-FE View User's Garage Drives: Yaris Seddan 08 Join Date: Oct 2008 Location: Panama Posts: 220	Castrex, in your t-sport that's a round muffler magnaflow 5 inches?