The factory over axle pipes on the naturally aspirated 718 4.0L cars contain restrictive particulate filters that significantly mute the sound and character of the engine. SOUL Resonated Over Axle Pipes replace these restrictive factory sections with a free-flowing, full 2.25-inch stainless steel design to improve exhaust flow, reduce weight, and let more of the flat-six character come through.
Compared with SOUL Competition Over Axle Pipes, the integrated straight-through resonators take the edge off the additional volume while helping control rasp, low-RPM resonance, and cabin drone. This makes the Resonated OAPs an excellent choice for a street-driven GT4, Spyder, or GTS 4.0—especially when paired with aftermarket headers or a more aggressive rear exhaust.
The result is a more refined exhaust upgrade that removes one of the major restrictions in the factory system without making the car excessively loud. For owners looking for more sound and performance while retaining excellent street manners, the Resonated OAPs offer a great balance.
DETAILS:
Fits North American Porsche 718 Cayman GT4, 718 Spyder, Cayman GTS 4.0, and Boxster GTS 4.0 models (2020+)
Full 2.25-inch one-piece exhaust path with large-radius mandrel bends
Integrated straight-through resonators help reduce rasp, drone, and low-RPM resonance
Compatible with factory or upgraded headers and rear exhaust systems
No check engine light on North American vehicles
Weighs approximately 13.8 lbs / 6.3 kg compared with 23.2 lbs / 10.5 kg for the factory components
Saves approximately 9.4 lbs / 4.2 kg versus the factory over axle pipes
Constructed from durable .065-inch-wall T304L stainless steel tubing
Back-purged TIG welded for strength, consistency, and long-term durability
Precision-fit brackets and fixtured construction for bolt-on fitment
New high-grade installation hardware included
Optional embossed 321 stainless steel heat shielding available for additional thermal management
Backed by SOUL Performance Products' Lifetime Warranty for both street and track use
Designed and manufactured in-house at SOUL Performance Products in Willow Grove, Pennsylvania
NOTE: Most European-market vehicles use additional monitored ports on the factory over axle pipes. European customers should confirm compatibility before ordering.
The factory over axle pipes on the naturally aspirated 718 4.0L cars contain restrictive particulate filters that significantly mute the sound and character of the engine. SOUL Resonated Over Axle Pipes replace these restrictive factory sections with a free-flowing, full 2.25-inch stainless steel design to improve exhaust flow, reduce weight, and let more of the flat-six character come through.
Compared with SOUL Competition Over Axle Pipes, the integrated straight-through resonators take the edge off the additional volume while helping control rasp, low-RPM resonance, and cabin drone. This makes the Resonated OAPs an excellent choice for a street-driven GT4, Spyder, or GTS 4.0—especially when paired with aftermarket headers or a more aggressive rear exhaust.
The result is a more refined exhaust upgrade that removes one of the major restrictions in the factory system without making the car excessively loud. For owners looking for more sound and performance while retaining excellent street manners, the Resonated OAPs offer a great balance.
DETAILS:
Fits North American Porsche 718 Cayman GT4, 718 Spyder, Cayman GTS 4.0, and Boxster GTS 4.0 models (2020+)
Full 2.25-inch one-piece exhaust path with large-radius mandrel bends
Integrated straight-through resonators help reduce rasp, drone, and low-RPM resonance
Compatible with factory or upgraded headers and rear exhaust systems
No check engine light on North American vehicles
Weighs approximately 13.8 lbs / 6.3 kg compared with 23.2 lbs / 10.5 kg for the factory components
Saves approximately 9.4 lbs / 4.2 kg versus the factory over axle pipes
Constructed from durable .065-inch-wall T304L stainless steel tubing
Back-purged TIG welded for strength, consistency, and long-term durability
Precision-fit brackets and fixtured construction for bolt-on fitment
New high-grade installation hardware included
Optional embossed 321 stainless steel heat shielding available for additional thermal management
Backed by SOUL Performance Products' Lifetime Warranty for both street and track use
Designed and manufactured in-house at SOUL Performance Products in Willow Grove, Pennsylvania
NOTE: Most European-market vehicles use additional monitored ports on the factory over axle pipes. European customers should confirm compatibility before ordering.
