If you want the noise from a dumpvalve i would recommend the new split-r valve from FORGE. Have had one put on myself and sounds really great. If you are not bothered or dont like the dumpvalve noise fit either a FORGE recirc or a BAILEY one both are very good and choice is down to you.
If you have your car remapped then you need to change the spring depending on application as mentioned abouve. Not to sure how we go on with the split r though.
Hope this helps.
A forum community dedicated to all SEAT owners and enthusiasts including the Arosa, Ibiza, Cupra R, Leon, Cordoba, Alhambra, Toledo, Altea and Exeo. Come join the discussion about modifications, classifieds, troubleshooting, maintenance, and more!