How important is that M brace under the carriage? Its hitting my exhaust EVER so slightly. Other than covering that area w silicone, if i remove it, will it be bad? I dont autocross...or race..just sometimes take turns hard

 

Nissan would not add weight and cost to a car if it wasn't necessary. Get yourself some header wrap and cover the exhaust where it passes over the brace. Better yet, loosen up your exhaust and position it better before you tighten it down

 

you can add some shims / washers between the brace the body to make some more room...

 

The positioning idea wont work, i've tried. The exhaust uses clamps and one just wont tighten. Im going to go pick up a new clamp and if that doesnt work, i'll put washers under the brace. That will DEFINATLEY solve the problem. Thanks again jason. PS- my nuts and bolts are coming in tomarow lol

 

it's pretty useless, they took it out when i got my exhaust installed and havent noticed/felt any difference

 

The only thing i can see it preventing is frame bending. However, its position (in the center) makes me think that area gets very little torque anyway, and is ment more as a protector for the drive shaft

 

Putting washers between the brace and body will help exhaust clearance. I had to put about 3-4 washers on each bolt when i ran crawford cat/nismo exhaust setup.

 

Turned out the clamp was toast. I bought a new clamp and it fixed the problem. I put in spacers just incase. No more rubbing. I had installed and uninstalled the exhaust about 3 or 4 times and the band clamp just wouldnt torque down after being over used and stretched. The new band clamp is tight as a womans.. :-D