Pypes Exhaust
Pypes DOWNPIPES Mustang 351C Only
* Images may be a representation and may not reflect the actual product.
Product Details
Will fit any 64-69 Mustang with 351 CLEVELAND style manifolds. These mandrel bent downpipes are the only mandrel bent 2.5 downpipes to connect directly to your stock 351 standard manifolds via a clever ball socket and flange connection. They are very easy to install. Expect 5-8 extra horsepower because of the 2.5 and smooth mandrel bends. These downpipes end right at the crossmember humps so they will easily connect to the Pypes SFM03 header back system without modifications. Will fit any 64-69 Mustang with 351 CLEVELAND style manifolds. **2.5 2-bolt Flanges are not included **
Vehicle Fitment
Please verify year, make, model, and any notes before ordering.
- 1965-1969Ford Mustang
Engine Compatibility
351C; 2V/4V; Boss 351
Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.
Product Specs
- Brand
- Pypes Exhaust
- Part Number
- DFM10S
- Catalog Number
- 0026629
- Product Line
- Downpipes
- Category
- Exhaust
- Type
- Downpipes
Shipping & Availability
This item is showing manufacturer availability and may ship directly from the manufacturer. Tracking details are provided as soon as they become available. ETA 0-5 Days to ship.
Inventory shown: 7 available as of 6/4/2026.
Warranty: All products manufactured by PPE are guaranteed to be free from defects in the materials and workmanship at the time of sale. Sound or tone is not a warrantable/returnable issue. The products are guaranteed to fit and perform on their intended applications, provided the vehicle has not been modified* or suffered structural damage. When a shipment is received damaged; the consumer must contact the carrier to start a damage claim. All warranty claims must have a return authorization and will be reviewed by our claims team. At this point, it is our option to repair or replace the component. PPE reserves the right to replace any product that has been discontinued from its product line with a new product of comparable value and functionality. Under no circumstances shall the warranty be transferable or assignable. Any and all costs to remove and/or replace a warranted product are not covered by this warranty, including the shipment to and from PPE for the replacement. Also loss of vehicle, rentals or towing is not covered. Other than the warranty described above, all PPE products are sold “AS IS” and no other warranty is implied. At any time, the terms of this warranty are severable.
***PPE catalytic converters carry a 3 year/50,000 mile limited warranty. This specific warranty covers applications which are in good working/running order. The warranty does not cover converter failure due to poor running/performing engine, excessive fuel, nitrous oxide, superchargers, oil, antifreeze, improper O2 sensor function, road damage or hanger breakage.
The coating on all black powder coat tips is covered under warranty for 1 year from time of purchase. The coating on the inner walls of the tip are not covered under warranty.
Reviews & Questions
Real product feedback when available, plus quick ways to get fitment or product help.
Other Popular Parts
Pypes Performance Exhaust systems are one of the best exhaust systems on the market for price and superior quality. Get the sound you want from your Muscle Car with the Pype Bomb or a Pypes full exhaust from LMPerformance .
Pypes manufacturers a wide array of systems for a large range of vehicles. Pypes exhaust systems and crossover systems are a very popular choice of early Muscle cars such as the OLDS 442, B-Body, A-Body, G-Body, and the 1967-81 Camaros and Firebirds. Pypes also manufacturers headers and exhausts for newer muscle cars such as the Mustang, Camaro, Dodge Charger and Challenger. These systems feature 304 stainless steel and are available with or without X-pipes. Pypes' Mustang exhaust products are made of stainless steel materials for quality and durability. Don't forget Pypes 1997-2004 C5 Corvette 2.5'' w/ Violator Mufflers & Dual Tips. This system has the exclusive "Slingshot Technology" for maximum power and little volume increase.
Review our return, cancellation, shipping, warranty, and product image policies before ordering.
Contact us with questions before ordering
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.
Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.
Free Shipping: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra. Some items that require Truck Freight Delivery will require a Truck Freight surcharge. This surcharge is still a discounted shipping amount that is lower then the actual truck freight shipping charge that is charged to LMP. LMP will try to still give the lowest price possible for truck freight items.
Images: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.
TYPOS: LMPerformance tries to present the best most accurate information on our website. Sometimes we get mistakes in product information sent from vendors such as typos. We can not be responsible for these typos, if you see something that does not look right please let us know before ordering so we can double check for you first. LMPerformance will not pay for typos in any way, monetarily or otherwise.
Price Errors: In the event that a product has mistakenly been listed at an incorrect price, We reserve the right to refuse or cancel any orders placed for product listed at the incorrect price. We reserve the right to refuse or cancel any such orders whether or not the order has been confirmed and your account charged. If your payment type has already been charged for the purchase and your order is cancelled, a full refund to your orignial payment method in the amount of the incorrect price will be issued.
Special Order ITEMS: Some items are Special Ordered and may not be returnable, or even cancellable as they are going into production specifically because you ordered them. Special Ordered items can have a 5-35% cancelation fee.
Cancellations: Instock orders cannot be canceled due to our automated ordering & fast shipping system. To keep our prices low, all cancelations are subject to a 5% cancelation fee to cover transaction processing fees. We reserve the right to charge up to a 10% cancellation fee for cancelled orders due to merchant fees, Special Order fees and the cost of processing and shipping orders.When you request a cancellation of an order or a part, please note that it may take time for a manufacturer to cancel an order if the order is drop-shipped. We also have to confirm that the product has not shipped. If the product has shipped then this must be processed as a return.Also note that sometimes products ship more quickly than expected, so we recommend that you do not purchase alternative products until receiving final confirmation of the cancellation.
Returns: We cannot accept returns on parts that have been used or installed. No returns will be accepted after 30 days. All Returns must be in original packaging. Prior authorization must be given before any return can be made. Up to a 25% Restocking Fee may apply. Special Orders may be subject to Additional Manufacturer Restock Fees as well. Shipping cost will not be refunded.Hoods as well as PCM Programmers may not be returned unless defective and only for replacement. ALL returns must be first filed using our online form found here: https://www.lmperformance.com/returns.
Lost Order Claims All lost order/package claims must be made within 5 days of the shipping date or tracking information delivery date. All claimes made after this date will not be accepted due to Shipping companies policies of filing loss claims.
Damaged Items or Incorrect Items: Please contact us right away if your item has been damaged in shipping or are incorrect. Please note that we will ship replacement items the same method of shipping the order was originally placed for. LMPerformance can not ship packages overnight at our cost if the original shipping was not also overnight. Claims must be filed in order for replacement parts to be shipped.
Warranties:Any warranty claims must be placed with the manufacturer. All of the products sold by LMPerformance, regardless of the manufacturer, are designed for Racing and Performance applications. Many of our manufacturers offer NO WARRANTY on their products, either stated or implied, due to the unusual stresses placed on the parts and because we have no control over how they are installed and used. Many of these products are designed for off-road use only and are not legal for use on public highways. If you have a question about the warranty on a specific product, please e-mail or call us. Buyer assumes all risk and liability associated with these products.
Installation: We are not responsible for or any costs associated with the installation or the improper installation of any products. Purchaser assumes the risk associated with the installation of products. We, along with the manufacturer of each product are not responsible for any direct or indirect damage to the vehicle, personal, or costs incurred from the use of products.