Flowtech 31150 Long Tube Header for 1968-1974 Oldsmobile Cutlass for Sale

Price: $450

This item has been shown 356 times.

  • 30-DAY
  • Flowtech 31150 Long Tube Header for 1968-1974 Oldsmobile Cutlass. Buy now and get same day shipping!
  • Hurry up! Tomorrow the price will be higher!
  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Ceramic Headers
  • Rust And Corrosion Resistance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware


  • Brand: Flowtech
  • Collector Diameter: 3.00 inch
  • Emission Code: 4
  • Header Finish: Silver Metallic Ceramic
  • Header Style: Long Tube
  • Primary Tube Dia.: 1-3/4 inch
  • Product Type: Header
  • Tube Material: Mild Steel
  • Part Number: 31150FLT

Make an offer! Usually we offer the best price within 10-15 minutes.

  • We do our best to ship most items same or next day.
  • For all products, free fast delivery of the UPS is already included in the price.
  • Unfortunately UPS doesn’t accept PO box address. Please specify physical address which will guarantee faster delivery.
  • All orders must be paid via PayPal.
  • You may use your paypal dollars, or use your MC/Visa, Amex, Discover thru your PayPal account.
  • We offer 30 Day return policy.
  • Buyer pays return shipping.
  • Returns will only be accepted with a valid RMA number.
  • All returns must be in original box unopened.
  • A 20% restocking fee may apply.
  • All products returned are assumed to be in new and saleable condition unless the customer indicates otherwise at the time of submission. Re-boxing fees will be assessed on items received with damaged packaging. This fee may include shipping or other charges levied by the manufacturer. Any product returned in damaged, used or otherwise unsaleable condition may be returned to the customer or credit given at lower value, at the discretion of Autoshopping24.
  • Unfortunately mistakes happen and very seldom we ship faulty items. If you would like to get a replacement for an item purchased from us, we can do it for you! Please ship the original item(s) to our warehouse first and provide us with tracking number(s). Once we see that items are on their way we will send a replacement.

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.


1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in.


If you have fitment questions or concerns, please contact us prior to ordering.

*Please see the "Compatibility" link at the top of the listing.

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