The Kline Innovation valve controller for the Ferrari 488 GTB and Spider is designed to give the driver more control over the exhaust sound, allowing the car to produce a louder, more aggressive V8 note when desired.
One important distinction: Kline offers its own wireless “Inconel Button” valve-control kit, designed to work with its exhaust system. This is different from replacing the entire exhaust system or installing a separate electronic valve controller.
Product overview
Kline Innovation Inconel Button
* Purpose: Allows the exhaust valves to be commanded open for a louder exhaust note.
* Sound: More pronounced V8 character and less reliance on the factory valve-opening strategy.
* Compatibility: Intended for use with Kline’s valved exhaust setup; confirm compatibility if the Ferrari still has its factory exhaust.
* Best for: Owners who want more control over exhaust sound without necessarily replacing the entire exhaust again.
Manufacturer information: Kline Innovation Ferrari 488 exhaust
Installation difficulty
Difficulty: Easy to moderate
For a technician familiar with exotic-car accessories
The Kline wireless button is designed to fit into the 12V cigarette-lighter socket, with a wireless receiver installed in the engine bay. The button itself is simple to use, and the installation is intended to avoid permanent interior modifications.
* Estimated shop time: Approximately 30–90 minutes as a planning estimate, assuming straightforward access and compatible hardware. This is not a published Kline labour time.
* Main work involved: Positioning and securing the receiver, routing any required wiring, and testing valve operation.
* Special tools: Standard workshop tools should generally suffice; the exact requirements depend on the installed exhaust.
MSRP and current pricing
The exact manufacturer MSRP was not available in the sources I found, but these advertised prices provide a useful reference.
Product Advertised price
Kline wireless Inconel Button — Bulletproof Automotive US$598
Kline wireless Button Kit — Vivid Racing US$753.30 sale price
Used/new listing advertised on Canadian eBay C$850
For a Canadian customer, I would use approximately C$800–$1,100 for the controller kit alone as a preliminary budget, before tax, shipping and installation. This is an estimate converted from the advertised US pricing, not a confirmed Canadian MSRP.
For reference, the complete Kline 488 valved exhaust system is a separate purchase, with advertised pricing varying considerably by material and configuration.
My recommendation: If the car already has a compatible Kline valved exhaust, the wireless button is a clean, relatively simple way to gain direct valve control. If the car still has the factory Ferrari exhaust, verify fitment before ordering—the Kline button is not necessarily a universal plug-and-play controller for the OEM system.
One question that would help me narrow down the correct part and price: Is this for a 488 GTB, 488 Spider, or 488 Pista—and does it have the factory exhaust or a Kline exhaust?