SP Concepts
2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"
2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"
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- PRECISELY PIE CUT AND TIG WELDED BACK TOGETHER BY HAND AT OUR FACTORY RIGHT HERE IN LAKE ELSINORE, CA.
- A METICULOUSLY PAIN STAKING PROCESS, BUT THE RESULTS ARE A WORK OF ART IN THE END.
- 4.5” HIGH FLOW PERFORMANCE ROLLED CONE MUFFLER WITH STEPPED BAFFLE FROM 2 ¼ TO 2 ½ INCHES. INCREASES BOTTOM TO MID RANGE TORQUE AND HORSEPOWER ON ALL MOTORS. TUNED PROPERLY CAN ACCOMMODATE 88" TO 143".
- 065 STAINLESS STEEL HEADERS, STEPPED FROM 1 ¾” TO 1 7/8” TO 2” AT THE COLLECTOR
- HAND TIG WELDED FROM TOP TO BOTTOM
- MACHINED STAINLESS STEEL HEADER COLLARS
- 18MM O2 BUNGS WITH 12MM ADAPTERS, ALLOWS FOR STOCK OR AUTOTUNE SENSORS
- COMPLETE HARDWARE KIT WITH EVERYTHING YOU NEED TO MOUNT IT UP
![2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"](http://spcexhausts.com/cdn/shop/products/IMG_7466_9acba0f9-5500-44bb-a6b2-5e8369de7284.jpg?v=1675411813&width=1445)
![2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"](http://spcexhausts.com/cdn/shop/products/IMG_7462_113ca3a3-bae0-40db-8560-cce3f7c026ea.jpg?v=1675716751&width=1445)
![2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"](http://spcexhausts.com/cdn/shop/products/IMG_7461_46719d51-db7e-436e-8421-e2a67a579e82.jpg?v=1675716751&width=1445)
![2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"](http://spcexhausts.com/cdn/shop/products/IMG_7441_e789bfbf-c1b2-4e6a-b67c-1786c8345426.jpg?v=1675716751&width=1445)
![2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"](http://spcexhausts.com/cdn/shop/products/IMG_7463_3bd9e5c5-f6dd-428a-b482-f7d869b162fa.jpg?v=1675716751&width=1445)
![2006-2017 DYNA - BIG BORE 4.5 "WORKS EDITION"](http://spcexhausts.com/cdn/shop/products/IMG_7451_15fe0e8a-2a9e-453e-886e-aa13e08e757a.jpg?v=1675411813&width=1445)