DYNATECH HEADER MERGE COLLECTOR SLIP-ON 2.50" PRIMARY TUBES 2 1/2" 4.50" COLLECTOR 4 1/2" 12.00 " LONG 12" About 11" from were end of primary tube slips on to the end of the collector BLACK PAINTED Completely TIG Welded NO Mount Kit Included Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors maximize flow to help you get the most out of your exhaust system. Comes standard Ceramic Coated inside and out. Designed with a unique Pan E-Vac / O2 Sensor bung. The bung installed in the collector has 18 mm threads, common to most O2 Sensors. For users that want to use a Pan E-Vac system, the kit comes with a fitting that adapts the 18 mm bung to “ pipe thread, common to most Pan E-Vac fittings. U-Tabs are already installed on the collectors for an easy bolt on to any Dynatech Header with no welding required. Extra U-Tabs and hardware are also included for installation on header without U-Tabs installed. - See more at: https://www.afcodynapro.com/store/brand/DYNATECH-131/market/DragRacing-15?search_api_views_fulltext= page=4#sthash.p0yfPc1q.dpuf Formed long merge transition 4 into 1 design for maximum drag racing horsepower PART # 783-41231 783-51236 80-03510CH RETAIL $269.99 783-51236 1 COLLECTOR ONLY Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors maximize flow to help you get the most out of your exhaust system. Comes standard Ceramic Coated inside and out. Designed with a unique Pan E-Vac / O2 Sensor bung. The bung installed in the collector has 18 mm threads, common to most O2 Sensors. For users that want to use a Pan E-Vac system, the kit comes with a fitting that adapts the 18 mm bung to “ pipe thread, common to most Pan E-Vac fittings. U-Tabs are already installed on the collectors for an easy bolt on to any Dynatech Header with no welding required. Extra U-Tabs and hardware are also included for installation on header without U-Tabs installed - See more at: https://www.afcodynapro.com/DYNATECH/1272261398#sthash.6Mp0YLaX.dpuf NEW with DEFECT one tube is ground down it is not ground through and does not leak PA Residents Pay 6% Sales Tax FREE SHIPPING TO ANYWHERE IN THE UNITED STATES 30 Day Return Policy If you are not 100% satisfied, you may return your product for a refund less shipping charges. Please wait until all your auctions end before proceeding to checkout to take advantage of any additional item shipping discount. Lethal Deals LLC has a huge inventory of FORD and VOLKSWAGEN Parts as well as many racing parts. Please contact us and will we be happy to get you the parts you need at a great price. Shipping information We ship most of our items worldwide. We do ship to US P.O. Boxes and APO's. Please have a valid shipping address listed. Normally we ship items out three times a week. During busy times we ship more frequently. Local pick up is not available. We do offer combined shipping on some items. Please wait until all your auctions end or your purchases are made before proceeding to checkout to take advantage of multiple item shipping discount. You have 7 days from the end of the first purchase to add additional items to your order. International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Return policy If you are not satisfied with your purchase please return the item for a full refund minus the shipping charges. You have 30 days from the date of delivery to notify us of your return and ship it back to us. Merchandise must be unworn (Tried on only for fit and sizing) and in the original packaging. Please include the original packing slip, if available, so we can properly credit your original form of payment. If you are not satisfied, please let us know before leaving feedback. When you receive your order, please take a moment to leave us feedback. LETHAL DEALS LLC offers no warranties...either express or implied, including any warranty of fitness for a particular use or application. There is no warranty expressed or implied as to whether the goods sold hereby will protect purchaser or ultimate user of such goods from injury or death. Racing is a dangerous activity and the user shall be responsible for determining the suitability and safety of the product for its intended use, and the user assumes all responsibility and risk in connection there within. WE HAVE MORE LETHAL DEALS IN OUR STORE!!