Quote:
Originally Posted by srode1
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Quote:
Originally Posted by Cramer4918
I understand now.
I didn’t go with one since the majority of the systems I looked at did not have them. I figured between the fact the motor torques sideways and the length will be adequate enough to absorb the movement.
Someone correct me if I’m wrong pls.
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The more rigid the set-up, the higher the need for a flex-joint within the exhust tubing.
The 'flex' sleeves are typically needed where exhaust routing is very tight for spacing. Set-ups like this are utilizing mounting bushings (those metal tabs/hangers w/the blue bushings) that minimize movement. That 'almost fixed' mounting keeps things from moving so the movement @ the motor has to be absorbed somewhere within the exhaust system or there will most likely be a failure/crack somewhere @ a joint on the tubing.
Exhaust set-ups that have more flexible mounting/hangers & more space (the old school rubber straps or bushings used in a floating arrangement) don't necessarily need the ability to flex within the actual exhaust tubing because the system has room to expand/contract/shift w/less bind.