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downpipes

Flowmaster 81073 - Exhaust Manifold Downpipe

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$152.95

$169.95

You save: $17.00 (10%) off MSRP

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Check to see if this fits your vehicle

This part fits

  1. 1969 Pontiac LeMans 6.6L V8 cid:400 cc:6555
  2. 1968 Pontiac GTO 6.6L V8 cid:400 cc:6555
  3. 1968 Pontiac LeMans 6.6L V8 cid:400 cc:6555
  4. 1968 Pontiac LeMans 6.6L V8 cid:400
  5. 1968 Pontiac Grand Prix 6.6L V8 cid:400
  6. 1968 Pontiac Grand Prix 6.6L V8 cid:400 cc:6555
  7. 1968 Pontiac GTO 6.6L V8 cid:400
  8. 1968 Pontiac Tempest 6.6L V8 cid:400 cc:6555
  9. 1967 Pontiac GTO
  10. 1967 Pontiac Grand Prix 6.6L V8 cid:400 cc:6555
  11. 1966 Pontiac Grand Prix 6.4L V8 cid:389 cc:6376
  12. 1966 Pontiac GTO
  13. 1965 Pontiac Grand Prix 6.4L V8 cid:389 cc:6376
  14. 1965 Pontiac GTO
  15. show all...
Authorized Dealer
white carb warning, not legal street use in California Not for sale or street use in California.

About this product

Part #: 81073

Flowmaster introduces their manifold downpipes for 1965-1968 Pontiac A-Body vehicles with 389/400 V8 engines. These 2.50" mandrel bent 409S stainless steel pipes only fit with manifold castings 9779032-D/S and 9779328-P/S and include the factory 2-bolt flanges. These downpipes are covered by Flowmaster's Lifetime Limited Warranty.

More Details

GaugeOEM
Heat Shield AttachedNo
Inlet Diameter2.250 in.
Inlet Inside Diameter2.250 in.
MaterialStainless Steel
Outlet Diameter2.500 in.
Pipe MaterialStainless Steel
Single or DualDual
System TypeManifold Down Pipe
TitleFlowmaster 81073 Manifold Downpipes - 2.00in. Inlet 2.50in. outlet - 409S
Tube Diameter2.500 in.
Tubing Diameter2.500 in.
Additional Documents
  1. Certificate of Originpdf
  2. Warrantypdf

See what our community says about flowmaster products

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What made you choose this particular product?
Needed a new exhaust system because the stock exhaust was completely rusted together
Is this your first time buying from this brand? Did you consider other brands?
First time buying considered magnaflow but more hp in flowmaster
View on Zachary's build
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What made you choose this particular product?
performance header, fabricated test pipe, and a 3" from test pipe back
View on Jacques's build
d'Artagnan Martinez

68

d'Artagnan Martinez
2004 Jeep Grand Cherokee
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Hours of listening to videos and reading online reviews trying to find a muffler that sounds good, but doesn't drone.
Is this your first time buying from this brand? Did you consider other brands?
Yes, first Flowmaster......It will not be my last!
Was it easy to install? Any installation tips that will help others?
I had it welded in with the rest of the system by my favorite local exhaust shop.
Once you've had a chance to use the product, did it meet your expectations?
Sounded awesome for the week I had it on the stock system, no drone at any speed. It has a nice throaty note, it's exactly what I was looking for.
Any additional comments?
Have a WJ that you want to be able to hear? Buy this now!
View on d'Artagnan's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Wanted something loud and raspy
Is this your first time buying from this brand? Did you consider other brands?
Yes like carven r or a black widow
Was it easy to install? Any installation tips that will help others?
Had a muffler shop weld it on
Once you've had a chance to use the product, did it meet your expectations?
Sounded like a v8 supposed to sound
Any additional comments?
Also a cat delete and 5" exhaust tips
View on Luis's build
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What made you choose this particular product?
Performance
View on Tony's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.

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