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Exhaust fitting on cylinder


papa-smurf

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You need new o-rings. I've found that shorter springs work better then the stockers on my Pro-circuits. With stock spings the pipes vibrate like a POS.

The other thing is with at least my pipes not all o-rings are the same. Like if you buy a FMF spring and o-ring kit, the o-rings don't quite fit right on my PC pipes and they leak.

The draw back to leaking pipes at the flange is a big mess of oil, a bad sound sometimes, and your pipes are sucking air from the flange and not out of your motor.

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