3 Inch Exhaust

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Feb 20, 2013
Threads
11
Messages
31
This has been in the plans for awhile but it is completed now. 3 inch down pipe and all the way back. I did notice a bit more power and about 100 degrees (F) less EGT.

IMG_6525.webp
 
Did you follow the original exhaust routing?

Also what did you do for the turbo output flange.

Well, I can't say for sure because it didn't have the factory exhaust but I'll say it is close. I bought a 3 in stainless down pipe from Factorydirect4X4. I forgot to mention, the exhaust itself is stainless too.
 
Factorydirect4X4 is great if you live in Oz. Shipping it to North America would be very expensive.

I kept the standard exhaust. Pressure tests showed that almost all the restriction was in the standard muffler Toyota used. It appeared to be the same highly restrictive muffler used on gasoline vehicles. I replaced the muffler with a 'glass pack' flow through muffler and significantly reduced exhaust pressure and achieved similar power improvements and no objectionable noise. On engines with a turbo no muffler is required, the turbo 'eats' most of the noise.
Flowtech 50252FLT Flowtech Red Hots - Holley Performance Products
 
Factorydirect4X4 is great if you live in Oz. Shipping it to North America would be very expensive.

I kept the standard exhaust. Pressure tests showed that almost all the restriction was in the standard muffler Toyota used. It appeared to be the same highly restrictive muffler used on gasoline vehicles. I replaced the muffler with a 'glass pack' flow through muffler and significantly reduced exhaust pressure and achieved similar power improvements and no objectionable noise. On engines with a turbo no muffler is required, the turbo 'eats' most of the noise.
Flowtech 50252FLT Flowtech Red Hots - Holley Performance Products


It wasn't too bad. $45 to Long Beach, CA.
 
Hello Doughood,

Could you mention what engine you have in your Troopie please?

It is a 12HT. I got it out of an HJ62 donor vehicle in Compton, CA. He imported all kinds of stuff and it had been sitting a while. Total rust bucket but I scavenged all of the drive train.

Doug
 
Back
Top Bottom