My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Pypes Performance Exhaust SGF70 2.5" Crossflow Exhaust System with X-Pipe and Race Pro Muffler

Manufacturer

Pypes Performance exhaust

<h3>About Pypes Performance Exhaust</h3><p>Based in Hatfield, Pennsylvania, <strong>Pypes Performance Exhaust</strong> has built a devoted following among American muscle car and performance truck enthusiasts by doing one thing exceptionally well: engineering high-quality, stainless steel exhaust systems that deliver the right sound, fit, and flow for vehicles spanning the 1950s all the way to the present day. Whether you are restoring a classic A-Body Mopar, building a late-model Mustang, or upgrading a popular American pickup truck, Pypes has a solution engineered specifically for your application.</p><h3>The Mandrel-Bent Difference</h3><p>At the heart of every Pypes system is mandrel-bent tubing. Unlike factory compression-bent exhaust systems, which can restrict flow at every curve, mandrel bending maintains a consistent diameter through every bend. The result is dramatically improved exhaust scavenging and overall flow efficiency — a key ingredient in unlocking an engine's true power potential. This commitment to proper tube geometry is one of the primary reasons performance enthusiasts trust Pypes when building a serious street or strip machine.</p><h3>Stainless Steel Construction &amp; Lifetime Warranty</h3><p>Pypes fabricates its systems and accessories using stainless steel, available in both 409 SS with a natural finish and 304 SS with a polished finish. Compared to aluminized steel, stainless offers superior corrosion resistance and significantly longer service life. Backing up that durability, Pypes supports its products with a limited lifetime warranty — a testament to the confidence the company has in its own craftsmanship.</p><h3>A Complete Exhaust Ecosystem</h3><p>What sets Pypes apart from many competitors is that they engineer complete exhaust ecosystems rather than isolated components. A typical complete system includes an X-pipe or H-pipe, a pair of performance-matched mufflers, tailpipes, and all of the necessary clamps and hardware. For builders who are starting from the factory manifolds, Pypes offers a comprehensive lineup of <a href="/561-pypes-performance-exhaust-exhaust-manifold-down-pipe-19000">exhaust manifold downpipes</a> that connect factory iron manifolds to the rest of an aftermarket system — the critical first link in any performance exhaust build. Enthusiasts who want everything in one box can explore Pypes <a href="/561-pypes-performance-exhaust-exhaust-system-kit-10727">exhaust system kits</a>, which bundle all the key components together for a streamlined installation. And to keep a completed system properly supported and rattle-free, Pypes also produces stainless steel <a href="/561-pypes-performance-exhaust-exhaust-system-hanger-kit-11114">exhaust system hanger kits</a> designed to last as long as the exhaust itself.</p><h3>Built for American Performance Vehicles</h3><p>Pypes' catalog focuses squarely on American iron — from iconic muscle cars like the Chevelle, Camaro, and Mustang to modern performance trucks and Jeep platforms. Their vehicle-specific fitment approach means each system is designed around the unique routing requirements of a given year, make, and model, minimizing guesswork at installation time. Whether you're chasing a deep, throaty idle or an aggressive high-RPM bark, Pypes offers multiple muffler options so builders can tune the sound of their system to match their personal preference and build goals.</p>

Part Number

SGF70
09/11/2036 11:09 PM
Sale Price

$766.79

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Pypes SGF70 is a complete header-back or crossmember-back exhaust system designed for 1967-1981 GM F-Body and X-Body vehicles. This innovative system features a unique crossflow design that delivers maximum performance and ground clearance while maintaining an OEM appearance.

Revolutionary Crossflow Design:

The SGF70 features the first crossflow muffler system with a true straight-through flow path. Unlike traditional systems where exhaust gases mix and create turbulence, this design maintains two completely separate flow paths for each side of the exhaust through a single muffler body, resulting in zero flow restriction and maximum performance.

Key Features:

  • 2.5-inch diameter mandrel-bent 409 stainless steel tubing for optimal flow and durability
  • Driveshaft tunnel X-pipe crossover design for maximum ground clearance on lowered vehicles
  • Race Pro mufflers with straight-through perforated core, stainless mesh, and basalt insulation
  • 16-gauge stainless steel construction throughout
  • Suitable for high-performance applications up to 600 horsepower
  • Slip-fit connections for straightforward installation
  • Includes hangers, clamps, and complete hardware
  • Throaty, aggressive sound under acceleration with civilized cruising tone

Installation Notes:

This system is designed for header-equipped vehicles. Manifold downpipes are available separately for non-header applications. Some modifications may be required when connecting to aftermarket headers due to variations in collector angles. Exhaust tips are sold separately. Convertible models require an additional mounting bracket.

Constructed from corrosion-resistant 409 stainless steel with mandrel bending technology to eliminate kinks and restrictions, the SGF70 delivers the performance, sound, and durability that muscle car enthusiasts demand.

Products specifications

Exhaust Tip Exit

Two

Exhaust Type

Dual in/Dual out

Exit Location

Split rear

Inlet Quantity

Dual

Intermediate Pipe Dia.

2.500 in.

Intermediate Pipe Diameter (in)

2.500 in.

Material

409 SS

Muffler Configuration

Dual inlet/Dual outlet

Muffler Included

Yes

Muffler Quantity

One

Muffler Series

Race Pro

Muffler Style

Turbo

Notes

Tips not included.

Quantity

Sold as a kit.

System Finish

Natural

System Material

Stainless steel

System Style

Header-back

Tailpipe Dia.

2.500 in.

Tailpipe Diameter (in)

2.500 in.

Tip Included

No

Awaiting Delivery

Have used Autoplicity before and always satisfied. Will use again

shipping longer than expected

Very efficient and pleasant..just hope the items get here before the next snow storm !!

Good stock

So far so good!!!

I received original factory parts and paid less than the bobo brand carquest, O'Reilly, autozone, and advanced auto sell. Being factory original everything simply unplugged and went Right back together! Very pleased!!! Not to mention I saved $200 on just the one item!! Yea I'll be a regular customer from now on thanks guys.

thanks

Found what I needed at price that is OK.

This system is a nice alternative to many on the market. It is reasonably complete for a factory F-body and the pipes actually fit the contour of the frame, rear axle, and exits.It installed with a nice fit as well. A couple of issues with Pypes kit in general: Parts markings on individual components do NOT match diagrams (A-F is inconsistent between the two) The muffler hangers are weak-after a week of holding the rear system up, tears are present. Flanges for down pipes were pushed out too far, requiring triming in order to fit into the flange receptacle on the OEM exhaust manifold. Pypes provides conventional (cheap) exhaust clamps in lieu of stainless band clamps for this stainless system....guess they presume most will TIG the joints and toss the clamps - not for everybody. For the Pontiac F-body, you are required to buy additional extensions to add on the factory splitter tips. There is no description or diagram to address what part of the existing over the axle pipe should be retained or be removed in order to add the exhaust tip extensions and tips themselves. Pictures or an illustration would be immensely helpful. Overall, this set is better than most, but could easily be improved upon by the folks at Pypes with a little more attention to detail.

Quick shipping on my order. Thanks

First time buying at this wed site and was pretty simple

Great prices and item shipped quick!

I placed the order on Monday, and the package was delivered two days later, on Wednesday...and that was with FREE SHIPPING!!! It was also at the best price I could find. What more can you ask?

This is the best price that I found on the AEM methanol injection kit! I and searched all over! Fast shipping and processing! I would buy from again!!

Lowest price of anyone, including shipping. Arrived quickly. What more can you ask for.

Good prices and quick shipping. Thanks!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy