Have a picture of the muffler you are using? I was curious if the GT3 style muffler outlets droned, thanks for posting.
Quote:
Originally Posted by s2k9k
Recently installed SSI heat exchangers with SSI GT3 center exit exhaust on my 1980 911SC. Sounds amazing on idle and highway speeds. No drone at all. But in town driving between 1800-2100 RPM, the drone is so loud its causing headaches. Is this with all dual exhausts? Might just have to go back to 2 in, 1 out if the droning is this bad with dual exit.
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