SprogTech ST-X K4M Enclosed Intake Kit - Twingo RS

SprogTech ST-X K4M Enclosed Motorsport Specification Intake Kit for the Renault Twingo RS 1.6
 
Please allow 1-4 weeks for dispatch. 
 
What's Included?
 
SprogTech STX K4M motorsport enclosed airbox, including Ramair filter
Front inlet scoop
Throttle body silicone elbow
Silicone breather pipe
Airbox rubber mount & hardware
2x V Band clamps
3x Stainless jubilee clips
 
Key Features
 
Motorsport specification enclosed intake, designed for optimal performance on the race track
Dyno proven performance gains of up to 11.5bhp / 9% over stock and 8.5bhp / 7.5% over a performance panel filter
Choice of fibre-reinforced plastic or carbon composite construction (please note, carbon composite looks as pictured, not like traditional woven carbon fibre)
Retains factory battery position, no modifications are required to fit this kit, and it is completely reversible!
Huge reduction in intake air temperatures over an open air / 'heat shield' intake
Integral velocity stack optimising airflow
Ramair air filter element that is easy and cost-effective to replace
Enhanced intake noise
Designed and manufactured in-house, here in the UK
 
STX K4M 
 
Our SprogTech STX K4M Enclosed Intake kit has been designed specifically for the Twingo RS1.6 16v. The airbox kit is completely unique to the Twingo RS, making the best use of the space available. A great effort and attention to detail has gone into every aspect of this kit, to ensure it performs as intended, even in extreme environments on the race track.
 
As we have developed enclosed intake kits for various cars over the years, we have found that on revvy naturally-aspirated cars such as the Twingos, intake air temperatures can be as important, if not more important, than improving airflow and restrictions. The entire airbox is completely enclosed, drawing cool air through our flow-formed inlet scoop which sits in front of the radiator.

For the STX K4M kit, we were able to use our tried and tested STX Airbox, which we have had great success with on similar cars to the Twingo. The Ramair foam air filter is mounted to our integral velocity stack profile that we use across our airbox range. Air passing through the air filter is smoothly compressed into our throttle body pipe. 
 
Following in the steps of our F4R kit for the Clios, we have utilised V bands to connect the airbox to the inlet scoop. This in turn, creates a perfectly smooth join that will not disrupt the airflow as it passes through our flow-formed inlet scoop and into the airbox. Small details like this all add up to a fantastic result. As with all our Airbox kits, they will not go to market until we have thoroughly dyno tested the kit and can provide the customer with real world, dyno proven gains. Something that cant be said for other products on the market!
 
DYNO RESULTS
 
Each intake was run 3 times back to back, before the car was allowed to cool down thoroughly. All of the testing was done at Wayside Performance, with the same car, on the same day. The complete results and figures are in the pictures, but the noteworthy figures were as follows.
 
STX K4M average gain over stock airbox with OE panel filter - 11.4bhp (9%)
STX K4M average gain over stock airbox with performance panel filter - 8.5bhp (7.5%)
 
FITMENT
 
The scoop includes an integral mount which utilises a rubber bung, as used on our STX EA8 Airbox for the VW Golfs. By doing so, it will dampen any harsh vibrations from the engine and allow the scoop to move around with the engine, just as the OEM airbox would. 
 
MATERIALS
 
Our STX F4R kit can come in 2 materials; our new Fibre-Reinforced ABS plastic or Carbon Composite. While the Fibre Reinforced ABS plastic is perfectly up to the job for the majority of applications, the Carbon will be the choice for those who regularly track or race their car. In addition to the carbon being very very strong, it can also reflect temperatures up to 200*C, around 80*C more than the ABS plastic. Heat soak is simply not an issue.
 
MADE IN THE UK
 
We pride ourselves on being completely self-sufficient when it comes to our products. The SprogTech STX K4M is designed and manufactured entirely in-house, by us in the UK. Apart from the Ramair Proram filter element, no part of the STX K4M is made elsewhere, or bought in.
 
NOTES
 
If you need any assistance or have further questions regarding the product, please feel free to contact us.
 
Dimensions & Specification
 
Inlet size - 90mm
Outlet size - 70mm
Tub Diameter - 153mm
Material - FR ABS plastic or Carbon composite
Filter Element - Ramair foam air filter (replaceable)
 
Vehicle Fitment
 
Renault Twingo RS