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Fabspeed 718 Maxflo exhaust with sport cat and black tips

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718 Maxflo plus sport cat system, angled side view

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Hanger bracket on the 718 Maxflo plus sport cat pipe

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Carbon fiber tips on the 718 Maxflo plus sport cat exhaust

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Sport catalytic converter on the 718 Maxflo system

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Factory 718 exhaust compared with Maxflo plus sport cat

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Slip joint and clamp on the 718 Maxflo sport cat pipe

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718 sport cat downpipe with factory pipe for comparison

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718 Maxflo plus sport cat installed under the bumper

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718 sport cat downpipe installed beside the oil pan

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Fabspeed 718 Boxster/Cayman Maxflo + Sport Cat

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Brand: FabspeedSKU / Part #: FS.POR.718.MAXC

Regular price: $4,836.95
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Sale price: $4,836.95
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Subtotal: $4,836.95

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Fabspeed 718 Boxster/Cayman Maxflo + Sport Cat

Subtotal: $4,836.95

Not sure it fits? Text us your VINSee all fitment

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Overview

Fabspeed 718 Boxster/Cayman Maxflo + Sport Cat: a Maxflo cat-back exhaust and an HJS sport catalytic converter, for the 2017-2025 Porsche 718 Boxster / Cayman.

Sound

In Fabspeed's words: "The Maxflo Catback combined with the Sport Cat gives you a bit more volume than just the Maxflo Catback by itself, but it will still retain the refined Porsche tone."

Sound and power

The Maxflo cat-back paired with the sport cat is a little louder than the Maxflo alone but keeps a refined Porsche tone with no drone. Fabspeed quotes peak gains of 5+ hp and 15+ lb-ft.

Sport catalytic converter

The sport cat uses a German-made 200-cell HJS HD catalyst. It flows better than the factory converter and helps the turbo spool faster. Fabspeed guarantees no catalyst-related check engine light. Check your state emissions rules before you buy.

Installation

Plan for a professional install. The part bolts to the factory mounting points, and the factory gaskets can be reused if they are in good condition. Re-torque the fasteners after the first heat cycle.

What's Included

Fabspeed Maxflo cat-back exhaust
Fabspeed HJS sport catalytic converter

Features

Maxflo cat-back is 18 lbs (8.2 kg) lighter than the factory rear muffler
2.5 in, .065 in wall T304L stainless piping
200-cell German HJS HD catalyst
Carbon fiber, brushed or polished tips
No drone
Backed by the Fabspeed Lifetime Warranty
Fabspeed Lifetime Warranty

Fitment note

Fits US 718 Boxster, Boxster S, Cayman and Cayman S (2017-2025) and the turbo 2.5L 718 Boxster GTS / Cayman GTS (2018-2019). Not for 4.0L GTS, GT4 or Spyder models.

Specifications

Brand	Fabspeed
Part numbers	FS.POR.718.MAXC, FS.POR.718.MAXBR, FS.POR.718.MAXP
Type	Exhaust Package
Material	T304L stainless
Warranty	Fabspeed Lifetime Warranty

Fitment

Year	Make	Model	Chassis	Engine
2017-2025	Porsche	Boxster / Boxster S	718 (982)	2.0L / 2.5L turbo flat-four
2017-2025	Porsche	Cayman / Cayman S	718 (982)	2.0L / 2.5L turbo flat-four
2018-2019	Porsche	Boxster GTS / Cayman GTS	718 (982)	2.5L turbo flat-four

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.

Fitment

Year	Make	Model

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

Reviews & questions