Stainless Turbo-Back Exhaust System

Upgrade your Porsche 718 Cayman or Boxster with the RaggDoll Motorsports Stainless Turbo-Back Exhaust System —

A purpose-built, race-inspired system engineered to deliver unmatched performance, lightweight construction, and aggressive tone.

Starting right at the turbocharger outlet, every RaggDoll system kicks things off with a massive 3.5-inch downpipe—built to maximize exhaust velocity and slash backpressure where it matters most. We maintain a full 3.5” diameter through the critical section, our system completely eliminates the factory Y-pipe still found in many aftermarket set ups that create a choke point. We do this for uninterrupted flow and uncompromising performance.

From there, configurations transition to either:

• 30” mid-pipe for builds under ~500 HP

• Or remain 3.5” all the way back for max power and flow potential

Every system exits through dual 4.0-inch stainless slash-cut tips, eliminating the factory’s restrictive Y-section.

‍

Why Bigger Matters: Exhaust Flow Explained

When it comes to maximizing horsepower and turbo efficiency, exhaust diameter plays a critical role — and the narrowest point in the system always dictates overall flow.

Below is testing @24psi on our RaggDoLL Series Two and supporting mods

Setup / Results:

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

Even with identical boost pressure, the larger and more consistent the piping, the higher the power output. That’s why our exhaust starts big — ensuring maximum airflow, quicker turbo spool, and reduced EGTs.‍

‍

Key Features

• True 3.5” turbo outlet to first V-band – no reducers, no bottlenecks

• Stainless or stainless construction – precision-built and race-proven

• Sheds 40+ lbs over factory exhaust (stainless)

• Optional 3.0” or 3.5” resonator

• Dual 4” stainless tips for aggressive aesthetics and flow

• Raw, motorsport-grade exhaust tone

• Direct bolt-on fitment for Porsche 718 models

• Custom resonator configurations and cat options available

‍

Performance Benefits

This full turbo-back system is designed to maximize horsepower and torque by removing all OEM restrictions — including the turbo outlet flange, pinched downpipe, Y-pipe, and muffler. The result?

• Faster boost response

• Increased power throughout the rev range

• Unmatched exhaust velocity and turbine efficiency

• Significant weight savings (stainless of 40+ lbs)

• Direct fitment with no modifications required‍

‍

What’s Included

• 3.5” stainless or stainless downpipe (cat or catless)

• 3.0” or 3.5” mid-pipe with optional resonator

• Dual 4.0” stainless tips

• V-band clamps, hardware, and install accessories‍

‍

Summary

For Porsche 718 owners chasing the highest levels of performance, the RaggDoll Motorsports Stainless Turbo-Back Exhaust delivers where it counts: power, sound, weight, and fitment. Whether you’re daily driving or track dominating, this system unlocks the true potential of your 2.0L or 2.5L engine with uncompromising flow and motorsport tone.

‍

Built to order. 100% OEM-fit. Designed, tested, and loved by real 718 enthusiasts.

PURCHASE DISCLAIMER: Raggdoll Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Raggdoll Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.