Stainless Turbo-Back Exhaust System for Porsche 718 Cayman & Boxster (2.0L / 2.5L)

$ 2,680.00 USD
No items found.

Unleash Maximum Power for Your Porsche 718

Upgrade your Porsche 718 Cayman or Boxster with the RaggDoll Motorsports Stainless Turbo-Back Exhaust System — a race-bred solution built for serious performance. Designed from the turbocharger back, this system eliminates OEM bottlenecks with massive 3.5-inch piping, precision craftsmanship, and aggressive sound.

Engineered for Performance

Starting at the turbo outlet, our system features a true 3.5-inch downpipe that maintains diameter through the most critical sections. Unlike systems that retain factory Y-pipes or neck down to smaller diameters, we maintain flow where it matters — maximizing velocity and reducing backpressure.

Depending on your build:

  • Choose a 30” mid-pipe (for builds under ~500 HP)
  • Or maintain 3.5” all the way through for max output

All configurations exit through dual 4.0” stainless slash-cut tips for high-flow, aggressive aesthetics.

Why Exhaust Diameter Matters

In turbo systems, the narrowest point dictates total system performance. At identical boost pressures, our testing proves the impact of a properly-sized exhaust:

Test Results @ 24 PSI:

  • 3.0” Downpipe + 3.0” Exhaust = 513 WHP
  • 3.0” Downpipe + 3.5” Exhaust = 533 WHP
  • 3.5” Downpipe + 3.0” Exhaust = 548 WHP
  • 3.5” Downpipe + 3.5” Exhaust = 569 WHP

Bigger piping = higher flow, quicker spool, and better thermal management.

Key Features

  • True 3.5” turbo outlet to first V-band — no reducers
  • Stainless construction — precision-built, race-proven
  • Sheds 40+ lbs vs. OEM (stainless version)
  • Optional 3.0” or 3.5” mid-pipe with resonator
  • Dual 4.0” slash-cut stainless tips
  • Raw motorsport tone with no drone
  • Direct bolt-on fitment for all Porsche 718 models
  • Custom cat/resonator configurations available

Performance Benefits

This turbo-back system removes all factory restrictions — including the turbo flange, crushed downpipe, Y-pipe, and muffler — for total transformation:

  • Quicker boost response
  • More power throughout the rev range
  • Drastically improved exhaust velocity
  • Reduced EGTs
  • Aggressive sound, no compromise
  • No tuning required (unless desired)

What’s Included

  • 3.5” stainless downpipe (cat or catless)
  • 3.0” or 3.5” mid-pipe with optional resonator
  • Dual 4.0” stainless tips
  • All V-band clamps, hardware, and install accessories

Final Word

Whether you’re carving canyons or chasing podiums, the RaggDoll Stainless Turbo-Back Exhaust unlocks the true potential of your 718’s 2.0L or 2.5L engine. Built to order, track-tested, and backed by real 718 owners like you.

Fitment:

Porsche 718 Cayman & Boxster
Porsche 718 GTS, T, S, and Base (2.0L / 2.5L Turbo)

Disclaimer:

RaggDoll Motorsports does not condone or support the removal or disabling of any emissions equipment for street use. This product is intended for track/off-road use only where legal.

Trusted by Porsche 718 Owners

Testimonial Image
Star IconStar IconStar IconStar IconStar Icon

Liza & most of the time Vince is amazing...lol. Nah, kidding, these guys are awesome folks to deal with. I purchased their Stage 2 turbo, turbo inlet, intercooler, engine tune, and high pressure fuel pump for my 2018 2.5L Boxster GTS and they're products and service have been top notch throughout the entire process.

Chris Rademacher
Testimonial Image
Star IconStar IconStar IconStar IconStar Icon

Raggdoll Motorsports set up two dyno sessions for my Porsche Turbo S. The Porsche touts a 4.0-liter built engine and head work facilitated by Sam at ByDesign. Also has the XR ByDesign turbo kit with all the supporting mods. The first session the PDK kept transitioning out of manual mode. During the second session a boost leak at the throttle body boot ended the session early. We managed 812 hp on a Mustang dyno at only 20 psi of boost.

Michael Vigil
Testimonial Image
Star IconStar IconStar IconStar IconStar Icon

The people behind RaggDoll Motorsports have been in the game for a very long time and really know their stuff. They have a passion for modifying cars and are enthusiasts before anything else.

Adam Aggour
Testimonial Image
Star IconStar IconStar IconStar IconStar Icon

I purchased a RENNEN turbocharger for my 718 T. I had a special request, which was to get the turbine housing coated with Swain Tech white lightning thermal barrier coating and RaggDoll accommodated without hesitation even though it was something new for their team.

Khiem Dinh
Testimonial Image
Star IconStar IconStar IconStar IconStar Icon

Hey All! Shout out to Liza and @Raggdolls718. Amazing customer service, product knowledge and a top quality product. Liza went out her way to accommodate my tight timeframe and the level communication and level of detail shared was amazing.

Steven Van Blarcom
Testimonial Image
Star IconStar IconStar IconStar IconStar Icon

I purchased the Raggdoll Series One turbocharger upgrade and the turbo inlet upgrade from RMS for my Porsche 718 Cayman GTS and was very pleased with both the products and the customer service from RMS!

TNStories
Arrow
Arrow