1978 SC/ exhaust,muffler, header,etc....SSIversusGHL

[kaotik]

amigos

thinking about upgrading my 1978 911 sc exhaust/header to get some extra power

doubting between ssi and ghl
what is the main difference between both quality manufacturers

any sc's out there that have felt a real power increase after installing ?
15-20 bhp?

thx for the info

kaotik | Belgium

[mb911]

For the sc's the ssis are the best choice. Very very hi quality Better IMHO then GHL and you can expest a 15-20 hp gain with this conversion

[Henry Schmidt]

Add an M&K muffler and you'll finish the project off in style. I have use a couple of these top quality mufflers on my engines and I'm sold. I am recommending them on all my performance street engines. They are even suitable for MFI engines.