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Headers & Exhaust

All DMR headers are welded in a jig for a perfect fit every time. Then the flanges are machined flat for a good flat surface to seal up against the block. These headers are of the highest quality with features only found in higher priced custom headers. Includes port opening for unobstructed flow, scavenger spiked collector that direct the exhaust gases to the center of the collector (for much greater efficiency), and they will fit either automatic transmission or manual transmission. I suggest using at least 1 steel mount on the drivers side as these headers have all the pipes inside the frame (no need to modify inner fenders) which created a close fit. Our DMR-510 mini starter is recommended as it was used for mockup in the design stages. If you are using aftermarket aluminum heads with raised port be sure to get the raised port header. ALL HEADER SALES ARE FINAL. Header gaskets included. All DMR headers are plain steel and we will ship them to Jet-Hot for ceramic coating. All of the stainless listed mufflers have a straight thru design and have a perforated core for unrestricted flow with no backpressure plus they are reversible for custom installation. The best mufflers available and a sound like no others. I run these mufflers on my car plus an “X” pipe.

Displaying products 1 - 6 of 6 results
Exhaust Flow Plates
Price: $68.00
Exhaust Flow Plates
Exhaust flow plates will increase the flow on your cast iron production heads up to 15 CFM
Top = Raised Port - Bottom = Standard Port
Gasket Exhaust Headers or Cast Iron Exhaust
Price: $23.00
Gasket Exhaust Headers or Cast Iron Exhaust
Exhaust gasket for Oldsmobile engines 330-455 using either headers or cast iron exhaust.
Header 64-88 Cutlass
Price: $842.00
Header 64-88 Cutlass
Headers Oldsmobile.
Header 64-88 Cutlass Stainless
Price: $1,092.00
Header 64-88 Cutlass Stainless
Headers Oldsmobile.
Header Exhaust "X" Pipe
Price: $425.00
Header Exhaust "X" Pipe
3” universal header exhaust “X” pipe kit.
Header Reducer
Price: $39.99
Header Reducer
Header reducer.