DOWNPIPES |
We make only Mandrel bent 2 1/2" downpipe! Can increase hp by 10! Standard manifolds include the flanges.
  
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These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds for the following applications. Flanges are already installed.
| 409 Stainless |
Description |
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DGU14S
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2½" Small Block log-style Downpipes (3 bolt) - 1964-81
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DGU10S
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2½" Small Block Downpipes (2 bolt) - 1978-88 G-body
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DGU13S
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2½" Small Block Downpipes (3 bolt) - 1978-88 G-body
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DGU20S
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2½" Big Block Downpipes (3 bolt)
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FITS:
1964-77 Chevelle & El Camino
1967-81 Camaro
1964-77 Nova
1965-69 GM B-body
1978-88 Monte Carlo, Grand National, El Camino
1978-88 Regal, Grand Prix, Century
1965-69 Impala
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These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds for the following applications.
FITS:
1964-74 GTO, Tempest & Lemans
1969-77 Grand Am & Grand Prix
1970-81 Firebird & TA with HO manifolds
These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds for the following applications. Flanges are already installed.
FITS:
1964-74 GTO, Tempest & Lemans
1973-77 Grand Am & Grand Prix
1970-81 Firebird & Trans Am
1965-76 Pontiac B-body
These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds for the following applications.
FITS:
1967-69 Firebird & Trans Am
1969-72 Grand Prix
1965-70 Pontiac B-body
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These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds for the following applications. Flanges are already installed.
FITS:
1964-77 Cutlass & 442 (except 350 engines)
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These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds for the following applications. Flanges are not included but you can re-use your original flanges.
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* Scheduled to be discontinued when stock is depleted.
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FITS:
1968-72 Grand Sport 400-455
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Coming in June 2007. Pypes has done it again. 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.
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Our welded, extended length reducers (12") eliminate unnecessary seams, clamps and extra work. They are now all 304 Polished Stainless Steel.
| 304 Stainless Steel |
Description |
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PVR10S
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3" header to 3" pipe reducers
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PVR13S
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3.5" header to 3" pipe reducers
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PVR16S
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3" header to 2.5" pipe reducers
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PVR19S
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3.5" header to 2.5" pipe reducers
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For those of you who have mid length headers, you will probably need to make custom collector reducers to complete your exhaust system. Unfortunately most header manufacturers leave off this little detail when you buy their headers. Pypes has made it pretty easy though. Install your headers and then choose the appropriate angle bend necessary(30 or 45 degree). Pick the matching size flange from the list below. Sometimes the angle of the pipe will be a slightly degree than the angle of the header flange. So you will need to cut the end of the pipe at the correct angle and weld the flange to that pipe. Now you have a custom set of ‘dogleg’ reducers that slip fit right into our header back exhaust system.
| 304 Stainless Steel |
Description |
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PVM16S
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2.5" Pipe with 30 degree Mandrel Bend
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PVM19S
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2.5" Pipe with 45 degree Mandrel Bend
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PVM56S
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3" Pipe with 30 degree Mandrel Bend
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PVM59S
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3" Pipe with 45 degree Mandrel Bend
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HVF10
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2.5" Collector Flange
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HVF13
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3" Collector Flange
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HVF16
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3.5" Collector Flange
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HVG10
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2.5" Collector Flange Gasket
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HVG13
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3" Collector Flange Gasket
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HVG16
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3.5" Collector Flange Gasket
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FOR TECH ADVICE:
READ OUR EXHAUST TECH FORUM
or
Call: (800) 421-3890
or
E-mail
with your application for Expert Sales Advice.
E-mail
with your application for Expert Technical Advice.
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