exhaust systems

[Tonym]

I have a 2004 V8 LC and would like to put a 3" mandrel bent SS exhaust system on to improve power and get a little bit better fuel consumption ( unleaded is currently $1.05 a litre in Australia). Would this be an improvement over the standard system or am I just blowing my dough? Thanks for any help.

Tonym

 

[DMX84]

With out any type of forced induction, increasing exhaust size will do very little IMO. Do you guys use catalytic converters in Australia? If you do you can remove it and increase flow to some extent, but again doubt that you will see any improvements, and may throw a code. I have not looked into the placement of the 02 sensors to determine this exactly. I run my turbo car without any converter (my 02 sensor is in the manifold) I use a 3 inch exhaust and it runs AAAAWSOME! I’m sure a lot of people have something so say about this. Like it not legal for one, but my car runs cleaner than most around here. I take it for the emissions test and it runs so clean. Also I’m using an oil catch can for my PVC as to eliminate all the oil vapors in the intake. The car is a Gallant VR4 #380 of 1000.
If interested you can get more information on related tricks on this site. www.galantvr4.org
Lets see what other people have to say about this.
My 02¢
DMX
Via Con Dios

 

[macneill]

Try Borla. SS and mandrel bent. I've got one on my 02 and does it improve performance or economy? I've never checked, but it does sound cool.

http://www.borla.com/automotive/?make=TOYOTA&vehicle=LANDCRUISER&model=V8&year=1998-04