I have an 81 SC (204bhp) with SSIs, and they were one of the first and best mods I did. To address your two concerns:
a. I enjoy the greater torque, response and sound.
b. mine still has autoheat. SSI are free- flowing heat exchangers in the style of the earlier factory exhaust, not race-style headers, so cabin heat is unaffected. Actually not quite true, mine made MORE heat with SSIs.
Quote:
Originally Posted by Vereeken
I have a very original SC with auto-heat (that works!) SSI is a nifty piece of kit but :
a it hangs under the car so only a mechanic gets to enjoy it
b it would mean killing off the auto-heat....
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