On a lifted subaru has anyone ever ran the exhaust through the lift subframe?My EA81 offroader is lifted 8" for a divorced transfercase.The blocks that support everything is 2x8x.25,the pieces that connect all the the blocks together are 2x3x.1875.I was thinking of running my exhaust through the passenger side 3x2 square tube that connects the front section of the lift to the rear section.I was thinking run the exhaust into the pipe at the front of the tube then having an outlet port about 8" from the rear lift blocks.So the exhaust would bounce off the end of the pipe then go out the outlet to act like a baffle.the cross sectional area of 3x2 3/16 wall is 4.27 in^2 while 2 1/4 pipe is 4 in^2 and 2.5 is 4.9 in^2.

 

I will be running a EJ22.Anybody have any problems with that other than the pipe will get hot?

Only issue I can see is that if you do this the exhaust can't move with the engine. The exhaust is hung from rubber hangers so it can move the same with the engine, if you weld it to something fixed it will crack as the engine moves and the lift blocks (hopefully...) don't.

Guess you would put in a flexpipe... but those are expensive and prone to falling apart.

flex pipe is a no brainer.I tried running an exhaust without a flex pipe and it vibrated constantly. probably should have mentioned that a flex pipe will connect the y pipe from the engine and the tube.

Ive considered this and may do it on my rig, havent seen it in person go for it

In my experience, flex pipe doesn't work well in water.

what do you mean?

It doesn't flex after the water, mud, and heat gets too it.

I have flex pipe on butters, and its ran throught all the linked parts of my lift blocks. Its been on there over a year and half and seems to be working good..........

 

Jeff

pics of your exhaust system please?

Sure Ill get some for ya here tomorrow...........

 

Jeff