Hey guys, hope everybody had a great Christmas! My question is in relation to the brocks alienhead full system. I have a 2018 zx14r SE. Some guys on facebook groups said the alienhead 1 will fit on my gen 2 zx14r. Is this correct? Because I already have the alien 1 being shipped over. Also. Any major differences between both 1 & 2?

-Cheers, Nick.

I'm sure the Alienhead1 has smaller diameter headers since the Gen1 ZX-14 stock exhaust does. I'd send it back if possible. From a performance standpoint, if you reduce the flow of the headers, you'd probably be better off with slipons and the stock header.

I'd check with Brocks. I think they were telling me an Aliehead 2 would fit a Gen1 years back. A knowledgeable forum member told me the headpipes for an Alienhead 1 would probably be better for my Gen1. I do not think Brocks makes the Gen1 specific Alienhead anymore.

If you're interested in selling the Alienhead1, send me a PM. I have wheels to buy but if you have a good price on a used Alienhead in good shape, I might be interested.

Hey rook! Glad someone was able to provide some insight! I purchased the bike last year and with it came dual carbon two brothers slip ons. I then bought a 2013 oem header to remove the last cat in the headers for 14s because 2012-2015 that last stubborn cat was in the mind pipe rather then the headers. Then myself, never satisfied, bought a used alienhead when I saw a used but great condition full system coated in cerakote.Now I'm gunna have the alien head 1. And try to sell the dual carbon slip ons + headers as a package deal. Ideally if I sold the alien head full system around the same time as my Cans then I could afford the alienhead 2 instead of having gone my impulsive route.

-Nick

Good luck there. Brock should know if it will fit a Gen2. They always supported their products in the past even if bought secondhand.

I have a feeling it will not. Let us know what brock says about it