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SILVERKNIGHT7 · 03-02-2013, 04:38 PM

Just bought and installed the Top Speed exhaust with a Motordyne y pipe and noticed that the collector on the y pipe to the single pipe on my top speed doesn't match up. The Top Speed single pipe is 70mm while the Motordyne is 3inch. It bolts up fine and sounds good but I don't like the fact that I have a 1/4 inch lip which means that the exhaust might not be flowing correctly. I checked out the Tanabe y pip and its OD is 70mm which matches perfectly to my Top Speed exhaust. Should I sell the Motordyne and buy the Tanabe or should I not worry about it??? Any help would be much appreciated.

03-02-2013, 04:38 PM	#1 (permalink)
SILVERKNIGHT7 Base Member Join Date: Aug 2012 Location: TEXAS Posts: 71 Drives: 2011 NISSAN 370Z Rep Power: 13	Exhaust to y pipe doesn't match up??? Just bought and installed the Top Speed exhaust with a Motordyne y pipe and noticed that the collector on the y pipe to the single pipe on my top speed doesn't match up. The Top Speed single pipe is 70mm while the Motordyne is 3inch. It bolts up fine and sounds good but I don't like the fact that I have a 1/4 inch lip which means that the exhaust might not be flowing correctly. I checked out the Tanabe y pip and its OD is 70mm which matches perfectly to my Top Speed exhaust. Should I sell the Motordyne and buy the Tanabe or should I not worry about it??? Any help would be much appreciated.