Dundon Motorsports Street Header & Mega Crack Pipe Exhaust for Porsche 718 Cayman GT4 RS / Spyder RS (2022-2025)
Dundon Motorsports Street Header & Mega Crack Pipe Exhaust for Porsche 718 Cayman GT4 RS / Spyder RS (2022-2025)
TAG Motorsports is pleased to offer the Dundon Motorsports Street Header & Mega Crack Pipe Exhaust for the Porsche 718 Cayman GT4 RS / Spyder RS (2022-2025).
The loudest, most powerful exhaust for your GT4RS!
This system deletes valves and the muffler for the ultimate in power and performance.
BE WARNED! This is LOUD and drones. Not recommended for sensitive drivers, passengers or neighbors!
Makes 32whp at 8000rpm and 37lbft at 4500rpm in additional power over the car stock!
Technical Description
We spent TWO YEARS building, testing, iterating and improving this design. Using the latest technology in additive manufacturing, the Mega Crack Pipe is made with 347SS 3D-printed internals that keep the pathways as short as possible while still merging the waveforms of both banks for the great flat six symphony we're all wanting.
Choice of tips: keep your OEM tips, Dundon polished "935-style" tips, or Dundon polished "Megaphone-style" tips in 3D-printed 316 stainless steel.
Makes 32whp at 8000rpm and 37lbft at 4500rpm over stock with our Street Headers.
Dundon Motorsports part number: 100-30428
Fits: Porsche 718 Cayman GT4 RS / Spyder RS (2022-2025)
***FOR OFF ROAD USE ONLY - TAG IS NOT LIABLE FOR ANY CITY/STATE/FEDERAL ISSUES CAUSED BY PURCHASING OR INSTALLING THIS PRODUCT***
EMISSIONS NOTICE - NOT CARB LEGAL
This product does not have a California Air Resources Board (CARB) Executive Order (EO) number. Not legal for sale or use in California, or in any state that has adopted California emissions standards, and not legal for use on any pollution-controlled motor vehicle operated on public roads.
Note: For off-road / competition use only, not intended for use on public highways. It is the buyer's responsibility to know and follow the emissions and noise laws where the vehicle is registered and driven.
| SKU | DUNDON-100-30428 |
|---|---|
| Brand | Dundon Motorsports |
| Exhaust Tip Size | 90mm |
PROP65 WARNING

PROP 65 WARNING – Products sold by TMS such as lead acid batteries contain lead, which is known to the
state of California to cause cancer and birth defect or other reproductive harm. Safety Data Sheets for
products sold by TMS are available upon request.
For more information go to:
www.p65warnings.ca.gov/fact-sheets/lead-and-lead-compounds
| Many Items Are In-Stock & Ready-To-Ship. Typically Up-to 3-6 Weeks for Items Not In-Stock. |
