We are currently working on a 1.63"OD version of our tuned long tube headers plus a version to be used with late model GT3 mufflers. F1 style collector has a fully welded double slip joint under the heat exchanger. Hate to cover them up but these are block huggers and that design packages well. Here is a picture of the 1.5" version, the 1.63" version will be identical.
The version for use with late model GT3 mufflers will have divided secondaries that feed upper and lower chambers of that muffler with an active exhaust valve to divert flow.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
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