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Q: How long has Pypes been around?
A: Pypes Exhaust was formed in 2002 by a couple of Pontiac Enthusiasts. The original systems were made for Pontiac owners and when the word spread how nice and inexpensive these systems were, other GM F-body owners realized those same Pontiac systems fit the Nova. Now Pypes products span through most popular American car and truck models including Big Rig truck stacks.

Q: Why Pypes Exhaust?
A: Pypes Exhaust is known for its high quality, mandrel bent, stainless steel exhaust systems that carry a lifetime warranty at a very reasonable price. Our stainless steel exhaust offers the same quality as some of the competitor’s brands, but is priced closer to aluminized systems. For that reason, Pypes has emerged as a brand that is considered a great value.
Mandrel bent exhaust systems will flow twice as efficiently as a compression-bent system (custom shop) and by now we all know that efficient flow is one of the main ingredients for power.

Q: What are the benefits of a stainless steel exhaust versus an aluminized exhaust?
A: Once the aluminizing coating starts to wear off the cold steel is exposed and rusting starts from both the inside and outside. Depending on your location and driving habits, this may take place as soon as 1 year! Stainless steel exhaust should last the lifetime of the vehicle. With Pypes Exhaust Lifetime Guarantee on our products, you can be rest assured this will be the last system your car or truck will ever need.

Q: Why do our systems utilize an X-pipe design?
A: The x-pipe design of Pypes Exhaust Systems scavenges the exhaust flow, which allows the exhaust to flow at a higher velocity through the system. The increased velocity increases the flow and performance which will yield an increase in Horsepower to about 10-20 depending on the application.
We chose the X over the H because the X helps with medium to high end torque while the H only helps low end torque which most of today’s motors don't really need more of. Pypes X-pipes also smooth out the exhaust tone on these higher hp motors and limits unwanted popping noises common on cold start up.

Q. Are all X-pipe designs created alike?
A: No, there are basically 3 different type of designs that are being produced. The clamshell design utilizes 2 stamped pieces of metal put together like a clam. This design functions more like an H-pipe and is also prone to leaking over time. It is popular because it has a lower production cost. The second type we see is the home made X-pipe where someone simply cuts 2 holes into one pipe and welds two more pipes to that pipe. This design has literally no performance or sound improvement on your vehicle. Pypes has chosen the Siamese X design which more expensive to produce but achieves the best performance and sound results. We also make a specific F-body X-pipe assembly to create maximum clearance.

Q: “I want my car to sound like _______ , what options do I have”?
A: Pypes has the right sound and performance for everyone. Pypes offers 3 types of muffler options with most systems. The chart below give you an idea of what to expect in terms of sound and exhaust flow from each. We also have sound clips available for each on the product pages on Exception: SGF70 has a single transverse muffler that only comes in the Race Pro version to maintain maximum flow.

Q: What options do you have for my Nova?
A: Headers: Long tube, full length headers available for 68-74 Nova. (HDR100S)
We do a very good job of making sure our systems connect to most headers. If you are running a full length long tube header, you will simply need a collector reducer to meet you headers with our system at the dual humps of the transmission cross member. Determine the size of your collector flange. Pypes offers 4 sizes: (PVR10S – 3” to 3”); (PVR13S – 3.5” to 3”); (PVR16S – 3” to 2.5”); (PVR19S – 3.5” to 2.5”)
For mid length or shorty headers, Pypes offers mandrel bends and header flanges so you can make your own custom collector reducers.
Downpipes: Pypes offers stainless downpipes with flanges designed to attach to the factory manifolds. They are designed to connect to our systems or other systems if you have the slightly unfortunate experience of purchasing another brand system that doesn't offer downpipes.
62-67 Ram Horn Small Block: DGU15S
68-74 Small Block: DGU14S
Systems: Pypes Exhaust offers multiple variations of our Cross-member back exhaust systems. We offer 2.5” and 3” systems as well as 3.5" kits that dump before the rear. We offer them with an x-pipe or our X-change x-pipe that has integrated dump flanges so you can run open exhaust or use with electric cutouts.
1st and 2nd Gen 1962-67:
2.5”: (SGN10 - x-pipe with dual muffler setup)
3rd Gen 1968-74:
2.5”: (SGF11 - x-pipe with dual muffler setup); (SGF70 – x-pipe with a true dual single transverse muffler); (SGF70S – 304SS polished, x-pipe with a true dual single transverse muffler)
3”: (SGF13 – x-pipe with dual muffler setup)

We'll be monitoring this forum and from time to time should be able to contribute helpful information to help solve your exhaust problems in the future. Thanks for giving us this opportunity.
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