I had an email from SFS yesterday regarding the thread, content below
I have read the 6 pages of posts with interest and would just like to issue a reply. We were approached back in June to develop a 1 piece 80mm TIP as some people didn't want the version currently on the market due to the fact it was made from several parts and people not wanting the alloy intake section. We fitted the 1st prototype in July and road tested for 3000 miles, in meantime we also sent one to several companies for dyno testing. Just after this the V2 version came out, SFS have never intended to berate the B5 TIP. All we have done is forward the dyno results we received to dealers and sent to people who asked for the results. Our hose is a 4 ply with wire strengthening and we specialise in the hose design and manufacture, we are not dyno operators so rely on others to test for us, we have received dyno graphs and airflow tests figures which we published. I don't know where Bill buys his from so this isn't aimed at his but in response to the country of origin remark, unfortunately it does make a difference, they may 'look' the same but imported hose from the far east contains a far lower % of silicone and that loss is made up with fillers, ours are 100% pure silicone and not a 25% diluted version so retain all the technical qualities of silicone. This is not intended to mislead people or be playground tactics, Bill is happy with his design and we are happy with ours, it's up to you guys to choose which you want to buy.
As for copying then I don't see why people are getting so heated about this, if I wanted I could rant to maybe 12 companies for copying me, let me explain.. before joining SFS I worked at samco for 8 years and developed almost 1/2 the VAG products available including the 150/180/210/225 TIP's which were much better than OE. Then every man and his dog brought one out claiming to be better, no stress, that's just a way of life and the market. So apologies to anyone that thinks we have mislead them, we just acted upon requests and developed a product people wanted, choice isn't a bad thing.