Question about T25 vs. T28 turbo - Toyota Yaris Forums

kou · 10-24-2014, 02:39 PM

The turbo I have would be at 10psi at 3000rpm I am using 2.25'' exhaust all the way from the turbo I have a high flow cat a resonator and a muffler. You should be okay with a large down pipe but I would step down the size a foot off the turbo. Some people think bigger is better but from what I have found with the yaris if you want some torque down low you have to have a little smaller exhaust and it has to go to the bumper for example I tried to have the exhaust come out before the rear tire but I lost all around town power and that was with the turbo installed sure it would be great up top but for me not what I want. You have to think different than a honda where power is made from 4500-8k

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10-24-2014, 02:39 PM	#7
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	The turbo I have would be at 10psi at 3000rpm I am using 2.25'' exhaust all the way from the turbo I have a high flow cat a resonator and a muffler. You should be okay with a large down pipe but I would step down the size a foot off the turbo. Some people think bigger is better but from what I have found with the yaris if you want some torque down low you have to have a little smaller exhaust and it has to go to the bumper for example I tried to have the exhaust come out before the rear tire but I lost all around town power and that was with the turbo installed sure it would be great up top but for me not what I want. You have to think different than a honda where power is made from 4500-8k