4-2 Header.... - Toyota Yaris Forums

vodkalush · 12-06-2006, 08:59 PM

Does anyone think that we will see the day that a 4-2 header is created so we can install a true dual exhaust? Just wondering; would there be enough room for the 2nd exhaust tubeing?

Is this even somthing that is done? excuss my ignor.

eco · 12-07-2006, 01:56 AM

I would think that your 4-2 would still need to run into the cat.,but you can have a true duel exhaust with a 4-1,because you just need 2 pipes comin off the cat..And look how short the pipe is,you think you will get any better gains at low end with a 4-2 compared to a 4-1,this engine dosnt have enough displacment to make a diffrence,but it deffintly will help to open it up either way.

spkrman · 12-07-2006, 09:04 AM

eh i dont see the point of duals on this car.

but sure, anything can be done :)

boris13 · 12-07-2006, 11:53 AM

Quote:

Originally Posted by spkrman

eh i dont see the point of duals on this car.

but sure, anything can be done :)

Hey, some folks just like symmetry.

Nutzoids · 12-07-2006, 12:50 PM

Quote:

Originally Posted by boris13

Hey, some folks just like symmetry.

I have really Bad OCD... I love Symmetry... I would put True Duels even if it made me lose performance.

Katana · 12-07-2006, 02:44 PM

Ι am not at all sure about the result of it!

firefly1_0 · 12-07-2006, 03:01 PM

IMHO,
back pressure might be an issue. you might gain HP but loose out on TQ. the other thing is that the size of tube that you would have to run to = the flow rate of what's in there now would leave you without any choices for mufflers. also true dual exhaust should be left for engines with a Vee or boxer configuration.

acrbill · 12-07-2006, 03:05 PM

think about all the added weight. F-bodys don't even have true duals and people make HUGE power with them.

have someone make you a long tube tri-Y header. That would be as good as it gets.

12-06-2006, 08:59 PM	#1
vodkalush I drive a yarrrris View User's Garage Drives: 07 Sedan Polar White Join Date: Sep 2006 Location: Rochester, NY Posts: 1,009	4-2 Header.... Does anyone think that we will see the day that a 4-2 header is created so we can install a true dual exhaust? Just wondering; would there be enough room for the 2nd exhaust tubeing? Is this even somthing that is done? excuss my ignor. __________________ Docotrs say all the drikning has mesesd up my seplilng and radieng Get your YarisWorld.com stickers here!!! The Official Toyota Thailand Accessories Order Thread will work for parts

12-07-2006, 02:44 PM	#6
Katana Drives: Yaris LB 1.3lt 06 Join Date: Aug 2006 Location: Under the hood! Posts: 1,124	Ι am not at all sure about the result of it! __________________ It's not the ride, it's the rider!

12-07-2006, 03:01 PM	#7
firefly1_0 What the...? Drives: '06 Blazing Blue 3 door RS. Join Date: Oct 2006 Location: Edmonton Alberta Canada Posts: 88	IMHO, back pressure might be an issue. you might gain HP but loose out on TQ. the other thing is that the size of tube that you would have to run to = the flow rate of what's in there now would leave you without any choices for mufflers. also true dual exhaust should be left for engines with a Vee or boxer configuration. __________________ my other car is still faster... ...and the engine is way smaller. silly ricer, useless wings are for penguins...

12-07-2006, 03:05 PM	#8
acrbill Drives: Polar White Hatch Join Date: Nov 2006 Location: chicago Posts: 407	think about all the added weight. F-bodys don't even have true duals and people make HUGE power with them. have someone make you a long tube tri-Y header. That would be as good as it gets. __________________ ChinoCharles Intake supporter.

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12-07-2006, 01:56 AM	#2
eco Drives: 2007 Black Yaris sedan Join Date: Sep 2006 Location: Atlanta Posts: 884	I would think that your 4-2 would still need to run into the cat.,but you can have a true duel exhaust with a 4-1,because you just need 2 pipes comin off the cat..And look how short the pipe is,you think you will get any better gains at low end with a 4-2 compared to a 4-1,this engine dosnt have enough displacment to make a diffrence,but it deffintly will help to open it up either way.

12-07-2006, 09:04 AM	#3
spkrman Banned View User's Garage Drives: 1 Join Date: Nov 2006 Location: 2 Posts: 1,476	eh i dont see the point of duals on this car. but sure, anything can be done :)