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These merge collectors are used by the top engine builders in Indy Car, IMSA, Trans-Am and NASCAR. Fabricated from pre-bent tubing to form a Pyramid shaped cone inside, These collectors increase and broaden an engine"s torque curve without sacrificing top end power.
All associated parts and sub-assemblies for the above product are listed below:
| Part # | Description | Racer |
| MC4-175 | Collector-1 3/4"-4 Into 1 | $378.75 |
| MC4-188 | Collector-1 7/8"-4 Into 1 | $460.80 |
| MC4-200 | Collector-2"-4 Into 1 | $495.00 |
| MC4-213 | Collector-2 1/8"-4 Into 1 | $596.20 |
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