I currently have the megan o2 housing installed with the ams turbo-back exhaust. When I was under the car the other day replacing the front motor mount, I noticed that the ams downpipe is actually resting against the passenger side of the transfer case. Has anyone else had this problem using this setup/ I am all ears for solutions, maybe going with a different o2 housing or something?

Thanks

 

Bump, anyone? This is actually causing a false knock to occur during shifting. I am sure someone has had this problem.....

 

Does it sit directly on the case, or on the little fins that are on the underside?

 

I'll have to get under there and look again, but I think its actually against the tc itself, on the passenger side of it. It weird, because it never triggered the shift knock before i installed the cams and got retuned. I guess all the extra power its making is causing more flexing in the motor/drivetrain.

 

Have you checked your motor mounts for excessive wear lately?

 

Hmmm...well I did have to unbolt the passenger side mount when I did my timing belt/cam job a couple months back, but I cant say I did a thorough inspection of it. I have the torque solutions mount for the front motor mount......you think I should look at upgrading that passenger side mount? I'll look into that, they arent too expensive

 

ca18hatch24, I have the megan 02 with COBB downpipe and it was hitting the same spot you're talking about. It only hit the transfer case when the car is about to cut out, like not giving enough throttle when accelerating in first gear, but other than that it doesn't hit/rest on the transfer case.

 

http://s1178.photobucket.com/user/po...39889209579012

 

Remove the downpipe, grab a ball point hammer, and make slight dent to clear that spot. Tons have been doing it since 2005. No, there is no loss in flow or power output. The problem is the slight angle change with your o2 housing. On my old 8, I had a ported stock o2 housing and Buschur downpipe with no issues.

 

I would just extend the downpipe hanger and then use spacers for the cross bars...