Heat exchanger sets 41 mm, Stainless steel. Porsche 911

Heat exchanger sets, Stainless Steel.

Improve exhaust gas flow using these "big bore" SSi heat exchangers.
Made using Ø41 mm outside tubing for a better flow and performance these AISI 321/EN4531 titanium stabilized stainless steel heat exchangers offer long life, increased power output and a quality fit.

Fits:
Porsche 911 (carb.) Europe 2.0ltr 01/63-07/73
Porsche 911 (carb.) USA 2.0ltr -2.4ltr 08/65-07/71
Porsche 911 (inj.) Europe 2.0ltr - 2.4ltr 08/68-07/71
Porsche 911 (inj.) USA 2.0ltr -2.4ltr 08/68-07/71
Porsche 911 Europe 2.7ltr 08/73-07/75
Porsche 911 Europe 3.0ltr 08/77-07/83
Porsche 911 USA Federal 2.7ltr 08/74-07/75
Porsche 911 USA Federal 3.0ltr 08/77-07/78

Price is for a SET OF 2

LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel  the expected life in the severest road conditions (salt) is 20-30 years.

HIGHER POWER OUTPUT
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.

CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91133091911SSI41

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