They are universally considered to be the one of the best ways of increasing power on the K11. A full janspeed system, and a K&N filter and your more than likely going to increase the power of a 1.3 or 1.0 K11 by around 25%. If you want a price on a system let me know lol
Ed,
I am interested in a Janspeed exhaust as detailed above. Had a look on your site. Would have sent a pm but wouldn't let me. Is there anywhere around Swindon that could do the fitting for me? Thnx
I have the janspeed cat back system ans is a very good exhaust had no problem at all with it, gives out a nice sound not jst loud with the induction sound very nice ( as i have bmc induction kit)
If you are prepared to travell to Oxford I could supply and fit you a Janspeed system. We have them in stock, give me a ring if you are interested 01865 748000 just ask for Matt