TSL Pulse Extraction Exhaust System - 15% SAVING!!!
10 February 2009, 11:59 AM
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TSL Pulse Extraction Exhaust System - 15% SAVING!!!
TSL Subaru Impreza Pulse Extraction Exhaust System
Fits All Impreza 1993-2007 Classic and Newage including Dual Scroll Turbo
Hand-fabricated from 304 stainless steel, complete with motorsport quality anti-lag catalyst. Designed and based on the homologated international Gp. N full system, this pulsed extraction system is lightweight with motorsport-quality push-fit joints. Runs straight down the car, which reduces the overall length of the system to improve gas flow. Exclusive to TSL in the UK.
RRP: £1144.25
NOW: £995inc VAT Saving of 15%
Delivery £19.95
Compliance
The system is complete with rear silencer and catalyst which complies with current MOT requirements.
The noise level is similar to our Group N system, with a meaningful burble whilst remaining unobtrusive enough not to attract unwanted attention or become wearing on long journeys.
Description
The system contains three parts which must all be installed together for the system to function properly.
No gaskets or bolts are required - the installation method uses “slip joints” for leak-free connection under all driving conditions. Mounting springs ensure that all parts remain attached while enabling thermal expansion.
The total weight of the system is 14 kg, less than 50% of the weight of the original system. This lightweight construction is less sensitive to vibration and cracking.
How does it work?
The exhaust valve opening produces a strong pulse (wave) that propagates through the exhaust system until it reaches the free (outside) air. Any change in the cross section of the exhaust pipe creates a wave with opposite characteristics – a positive (pressure) wave is reflected as a negative (suction) wave. It is this phenomenon that is utilised for the pulse tuning of exhaust (and intake) systems.
The design of the exhaust system is such that the exhaust wave is reflected in the first cone assembly to create a low pressure zone that eases the evacuation of the exhaust gas after the exhaust valve fully opens. The cone also creates a high pressure reflection that prevents fresh mixture from escaping during valve overlap. Length, cross section area and angles of all system components are selected such that the right wave reaches the exhaust port at the right time. The waves also help evacuate the turbine exit chamber the moment the waste gate opens.
Quality aspects
The system is made entirely from stainless steel (304) and will last for the life of the car under normal driving conditions. It is TIG-welded to ensure excellent quality, contamination-free welding and prevent premature cracking. The catalyst is high quality, giving greatly reduced back pressure compared to a standard catalyst core. The rear silencer is an absorption type to resist burn-out and the pressure pulses that occur in the silencer, to ensure continuous absorption and vibration-free operation.
Fits All Impreza 1993-2007 Classic and Newage including Dual Scroll Turbo
Hand-fabricated from 304 stainless steel, complete with motorsport quality anti-lag catalyst. Designed and based on the homologated international Gp. N full system, this pulsed extraction system is lightweight with motorsport-quality push-fit joints. Runs straight down the car, which reduces the overall length of the system to improve gas flow. Exclusive to TSL in the UK.
RRP: £1144.25
NOW: £995inc VAT Saving of 15%
Delivery £19.95
Compliance
The system is complete with rear silencer and catalyst which complies with current MOT requirements.
The noise level is similar to our Group N system, with a meaningful burble whilst remaining unobtrusive enough not to attract unwanted attention or become wearing on long journeys.
Description
The system contains three parts which must all be installed together for the system to function properly.
No gaskets or bolts are required - the installation method uses “slip joints” for leak-free connection under all driving conditions. Mounting springs ensure that all parts remain attached while enabling thermal expansion.
The total weight of the system is 14 kg, less than 50% of the weight of the original system. This lightweight construction is less sensitive to vibration and cracking.
How does it work?
The exhaust valve opening produces a strong pulse (wave) that propagates through the exhaust system until it reaches the free (outside) air. Any change in the cross section of the exhaust pipe creates a wave with opposite characteristics – a positive (pressure) wave is reflected as a negative (suction) wave. It is this phenomenon that is utilised for the pulse tuning of exhaust (and intake) systems.
The design of the exhaust system is such that the exhaust wave is reflected in the first cone assembly to create a low pressure zone that eases the evacuation of the exhaust gas after the exhaust valve fully opens. The cone also creates a high pressure reflection that prevents fresh mixture from escaping during valve overlap. Length, cross section area and angles of all system components are selected such that the right wave reaches the exhaust port at the right time. The waves also help evacuate the turbine exit chamber the moment the waste gate opens.
Quality aspects
The system is made entirely from stainless steel (304) and will last for the life of the car under normal driving conditions. It is TIG-welded to ensure excellent quality, contamination-free welding and prevent premature cracking. The catalyst is high quality, giving greatly reduced back pressure compared to a standard catalyst core. The rear silencer is an absorption type to resist burn-out and the pressure pulses that occur in the silencer, to ensure continuous absorption and vibration-free operation.
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