Dynomax Performance Exhaust: Mufflers
Dynomax Performance Exhaust: Exhaust
Dynomax Performance Exhaust: New Products
Dynomax Performance Exhaust: Accessories

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Dynomax Performance Exhaust: Race Accessories
Dynomax Performance Exhaust: Customer Builder / Specialty parts
Dynomax Performance Exhaust: Side Pipes & Truck Staxx
Dynomax Performance Exhaust: Tips
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Dynomax Performance Exhaust: Customer Builder / Specialty parts
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Dynomax® Performance Accessories: Customer Builder / Specialty parts
Dynomax Performance Exhaust: Customer Builder / Specialty parts


Customer Builder / Specialty parts Accessories
Dynomax Performance Exhaust: Exhaust Cut-Outs / Dumps
Dynomax Performance Exhaust: Universal Pre-Bent Exhaust Pipes
Dynomax Performance Exhaust: Universal Exhaust Pipe Connectors
Dynomax Performance Exhaust: Universal Exhaust Pipe Reducers
Dynomax Performance Exhaust: Header Reducers
Dynomax Performance Exhaust: Straight / Flex Pipe
Dynomax Performance Exhaust: Universal Tail Spouts
Dumps / Cutouts
The DynoMax® Dumps feature I.D. sized inlets and outlets allowing for easy slip-fit installation with no welding required. The outlet block-off plate is a loose flange for improved clearance and fit. High quality extended length bolts are combined with hex nuts or wing nuts for ease of use (sold individually - one per carton). All hardware and gaskets included.

Dynomax Performance Exhaust: Dumps Part Number Material A B C D E
88339 409 Stainless Steel 2.25 I.D. 2.25 I.D. 3 O.D. 12 7.5
88340 409 Stainless Steel 2.5 I.D. 2.5 I.D 3 O.D. 12 7.5
88341 409 Stainless Steel 3 I.D. 3 I.D. 3.5 O.D. 12 9.5
88343 409 Stainless Steel 3.5 I.D. 3.5 I.D. 4.25 O.D. 14 9.5
88342 409 Stainless Steel 4 I.D. 4 I.D. 4.25 O.D. 14 9.5