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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
you may send your engine/top end in to us to be upgraded to a full mod or a full mod long rod
We do not contract out any of our porting so every engine is modified to our exact specifications
Machine combustion chamber for a proper squish clearance without stacking cylinder gaskets
This pipe was exclusively designed and dyno tuned around our engines and there is not a better performing pipe out there for an OBR engine
We hope to have a complete tuned pipe in the near future
6274 - 7.5hp CNC Ported Full Mod Zenoah 30.5cc 4 Bolt Engine you may send your engine/topThis engine now comes with a TR OBR billet crankcase at no extra cost. Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us
