Exhaust Downpipes 409 Stainless Steel 351C Pair 1967 - 1969 - Pypes Exhaust
Part #: 21778
Manufacturer Part #: DFM10S
$177.79
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These mandrel bent downpipes are the only mandrel bent 2.5 in. 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 in. and smooth mandrel bends.
These downpipes end right at the cross-member humps so they will easily connect to Pypes Part number SFM03 header back system without modifications. 5.8 Litre engines. Will fit any 64-69 Mustang with 351 Cleveland style manifolds.
Features:
- Mandrel Bent
- 16 Gauge Stainless Steel
- Clever Ball Socket And Flange Connection
- Very Easy To Install
- Expect 5-8 Extra Horsepower
- Downpipes End At The Crossmember Humps
- Easily Connect To The Pypes SFM03 Header Back System
- Lifetime Warranty
- 2.5 Inch Exhaust Manifold Downpipe
- Material: Stainless Steel
- Sold As: Pair
SPECIFICATIONS:
- Finish: Natural
- Hardware included: No
- Inlet inside diameter: 2.5 Inch
- Material: 409 Stainless Steel
- Sold as: Pair
- Size: 2.5 Inch
- Warranty: Limited Lifetime
- Universal: No
- Emission code: 4 (legal for sale in all 50 states)
- Country of origin: China
FITMENT:
- 1967 - 1969 Mustang
VIDEOS:
Video
| Mustang Year | 1967, 1968, 1969 |
|---|---|
| Mustang Body Style | Coupe, Convertible, Fastback |
| Year & Body Style Fitment Note | Year & Body Style listed in this section indicate physical fitment only and do not guarantee concours correctness. Always verify against the product name and description as well. |
| Brand | Pypes Exhaust |
| Truck Freight | No |
| California Prop 65 | WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov for more information. |
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WARNING: Cancer and Reproductive Harm. 








