Thread: RE Midpipe?!!?!
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      02-21-2014, 11:34 PM   #53
Finnegan
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Drives: Z4M/. Z3M, E36/46 M3
Join Date: Oct 2008
Location: Teaching the dog to slalom

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Quote:
Originally Posted by StickMon View Post

So who knows the torque specs for:
1) Rear tension struts
2) Rear reinforcement plate


I seem to have a whistle or buzz under heavy acceleration, though.
I'm tired of being under it, and sore, so I think I'll drive it for a week to let it settle in and then check the flanges and clearances.
I think the twist of everything under high torque is bringing one of the pipes up to where it just starts to touch the trans brace.
I think you have the buzz cause correctly identified.

Here's a link to my install parts list and torque specs for various exhaust related pieces. Pulled the torque specs from TIS. PDF attached, but it looks rather ugly, but just in case linky no worky.

Being under, without a lift, is a PITA. Totally understand how you feel.

I agree with the assessment of "how loud". I've gone back to the Rogue Exhaust (just picked up one used). I liked how it sounded, but, not the 3k - 3.2k drone. I'm going to to fab one of these (based off this) to try and attenuate the drone.

While I'm at it I might hack the resonator out of the xpipe to make my own de-resonated xpipe. The pops, burbles, and overrun of an xpipe are wonderful. I'll just have to keep it off boil to placate the neighbors.
Attached Images
File Type: pdf Xpipe Install.pdf (60.7 KB, 161 views)

Last edited by Finnegan; 02-21-2014 at 11:48 PM..
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