1150/1100 Header compatibility

[Vmass]

Will a 4/1 header from an 1150 fit the 1100E?

[posplayr]

Yes........,.......

[Katarat]

So obviously the 1100E will fit my 85 1150 then ?

[posplayr]

So obviously the 1100E will fit my 85 1150 then ?

The main (essentially only) difference you will find is in the location of the rear hanger. There is about a 3" difference. I don't recall which is longer but have modified 1150 Yoshi race headers (large down tube with underbelly design) for my 1100 by alone moving the rear mount.

[Buffalo Bill]

Just something similar I'd like to know; will headers for the later SACS oil-cooled 1100 engines fit the GS1100 engines?
I'm talking about the GSXR1100, Bandit 1200, Katana GSX1100F, and all of the SACS engines.

[posplayr]

Yes but fit will vary

[rapidray]

The header is the same. The difference is where the rear, muffler hanger bracket is located. All of the 16 valve, NON Katana, 1100s will swap around with no issues. The 1150 & early Katanas have the same rear hanger bracket location. Therefore, the 1150 & Katana exhausts swap directly & all the 1100E (including the 1100ES) exhausts swap directly. I hope that isn't confusing.
Ray.

[John Kat]

Just something similar I'd like to know; will headers for the later SACS oil-cooled 1100 engines fit the GS1100 engines?
I'm talking about the GSXR1100, Bandit 1200, Katana GSX1100F, and all of the SACS engines.

I don't know to what extent the GSXR 1100 headers differ from the GSXR 750's but the latter will fit the GS 1000 in terms of exhaut spacing.
The diameter of the tubes is slightly smaller but can be adapted...
Be ware that there is zero clearance to the lower crankcase cover.
The exhaust on the picture comes from a GSXR 750 from 1991 I believe?

[posplayr]

The best fitting GSXR pipes for a GS1100E are the 1st gen GSXR1100 pipes. I had a collection of them.

[Buffalo Bill]

I was looking at some Bandit 1200 headers and wondered if I could fit those on my GS1100G. Many nice headers for the SACS engines.