if i change my air intake should i chage my exhaust??? - Toyota Yaris Forums

and930 · 07-08-2011, 05:51 PM

i just changee my air intake in my 2010 yaris and i will like to know if i have to chage the exhaust and what size??. the size if my intake pipe is 3 in diameter

cali yaris · 07-08-2011, 06:50 PM

You don't have to add anything else, but you can.

What intake did you install?

and930 · 07-08-2011, 07:05 PM

i got an AEM cool air intake

thepartsmancometh · 07-08-2011, 07:17 PM

exhaust is not required at all, its just personal preference

matthewai · 07-10-2011, 03:11 AM

where u at in ny?

SAV912 · 07-11-2011, 05:10 AM

3" on the intake diameter is too big. You will likely have engine stumbles and a CEL. The MAF is very sensitive on this car. I think it's not recommended to go larger than 2¼-2½". Let us know how it runs though. And no, an exhaust is not required and the gains are marginal at best.

Me personally, if I'm going to modify one end of the car, I may as well modify the other.

-C

CrankyOldMan · 07-11-2011, 10:16 AM

If you can only afford the CAI at first, that's fine, but if you want to see bigger performance gains, you should plan on upgrading the intake and exhaust manifolds, as well as the mid-pipe and cat-back sections. Think of it like adding a larger diameter section to a drinking straw: you can only pull as much liquid through it as the most restrictive section will allow.

I've considered this, but I think it would be best paired with a new intake manifold and possibly the 1zz throttle body. Spend some time browsing the performance mods section and see what other people's feedback is on their mods.

cali yaris · 07-11-2011, 12:58 PM

Quote:

the size if my intake pipe is 3 in diameter

Quote:

i got an AEM cool air intake

The AEM cold air intake is 2 1/4", not 3".

Henry G. · 07-11-2011, 11:13 PM

I did a CAI for free. 2 1 1/2" hole saw holes drilled in the air box towards the fender. Free. You can hear the difference. Since this is a cheap ass car it only seems right. Check it out, I will provide pics if requested.

07-08-2011, 05:51 PM	#1
and930 Drives: toyota yaris 3DR black Join Date: Dec 2010 Location: new york Posts: 2	if i change my air intake should i chage my exhaust??? i just changee my air intake in my 2010 yaris and i will like to know if i have to chage the exhaust and what size??. the size if my intake pipe is 3 in diameter

07-08-2011, 06:50 PM	#2
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	You don't have to add anything else, but you can. What intake did you install? __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

07-11-2011, 05:10 AM	#6
SAV912 Pirate Yaaaaris View User's Garage Drives: '00 Toyota Celica GTS 6MT Join Date: Aug 2009 Location: Savannah, GA Posts: 573	3" on the intake diameter is too big. You will likely have engine stumbles and a CEL. The MAF is very sensitive on this car. I think it's not recommended to go larger than 2¼-2½". Let us know how it runs though. And no, an exhaust is not required and the gains are marginal at best. Me personally, if I'm going to modify one end of the car, I may as well modify the other. -C __________________ Georgia Bulldogs! '09 Yaris LB 5MT Sold.

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07-08-2011, 07:05 PM	#3
and930 Drives: toyota yaris 3DR black Join Date: Dec 2010 Location: new york Posts: 2	i got an AEM cool air intake

07-08-2011, 07:17 PM	#4
thepartsmancometh Drives: '08 LB, '07 WRX Join Date: Jan 2009 Location: midwest Posts: 187	exhaust is not required at all, its just personal preference

07-10-2011, 03:11 AM	#5
matthewai Drives: it is kinda stock Join Date: Oct 2010 Location: united states Posts: 1,258	where u at in ny?

07-11-2011, 10:16 AM	#7
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,333	If you can only afford the CAI at first, that's fine, but if you want to see bigger performance gains, you should plan on upgrading the intake and exhaust manifolds, as well as the mid-pipe and cat-back sections. Think of it like adding a larger diameter section to a drinking straw: you can only pull as much liquid through it as the most restrictive section will allow. I've considered this, but I think it would be best paired with a new intake manifold and possibly the 1zz throttle body. Spend some time browsing the performance mods section and see what other people's feedback is on their mods.

07-11-2011, 11:13 PM	#9
Henry G. Drives: 2008 Yaris HB Join Date: May 2009 Location: So Cal. Posts: 100	I did a CAI for free. 2 1 1/2" hole saw holes drilled in the air box towards the fender. Free. You can hear the difference. Since this is a cheap ass car it only seems right. Check it out, I will provide pics if requested.