5 Reviews for GAS BMW M54 2.5L DISA Kit - Coolant Cap Combo

• DISA refurbish 2004 BMW 325xiT - Tuesday, January 30, 2024
  I have used this kit probably 6 times now on various E39 and E46 M54. The directions are clear, and this is an easy refurbish to do. After checking the competency of the vacuum, I suggest scraping out the molded o-ring first as this takes the longest to do. From my perspective, this is a permanent rebuild. It's that good.
• Great customer service, and high-quality products - Tuesday, August 15, 2023
  After 20 years and 160,000 miles, the DISA on my 325i was still in good shape except for a bit of oily varnish. But an ounce of prevention is worth a ton of of cure, and this DISA Rebuild Kit looked like the way to go.
  
  I called Gary and he helped me work out a couple of questions and we got the thing coming my way. Referring to the instructions here on the G.A.S. website, the kit was an easy install and I had no trouble at all with it. I figured there wouldn’t be any noticeable performance improvement but I was wrong!
  
  I got this Rebuild Kit and Coolant Cap combo for some added peace of mind and this purchase is well worth the small time and dollar investment. It’s really a no-brainer so just do it!
  
  Sure the products are great quality, but I am particularly impressed with the excellent customer service I received. Thanks Gary!
• Outstanding quality - Tuesday, April 18, 2023
  Outstanding customer communication. Top notch products
• Consistent Quality and a Recommendation - 2001 BMW 325xi - Sunday, November 13, 2022
  This was my second DISA rebuild kit (different car), and it was of the same high quality and installed easily like the last one. This time I got the low pressure coolant cap too, and it has performed flawlessly. I have a recommendation though. The vac port would not hold the DISA flap, and taking the vac port apart I found a small tear in the diaphragm. Options included a GAS gold DISA valve or an OEM one (without rebuild kit) for about the same price, a replacement diaphragm for less than $20, or get a DISA at a junkyard and rebuild that one. I chose to put a dab of silicone sealant on the diaphragm to repair it, and this has worked so far. In the meantime I will likely try to find a DISA at the junkyard and put a new diaphragm in that one. Could the great folks at GAS include a diaphragm in the kit? A junkyard DISA is going to be old and potentially damaged as well, and the only other options are going to cost you over $400. The diaphragm replacement is a bit risky since the cap is meant to snap on once and may break, but with some good instructions perhaps the risk can be reduced. At least it would give customers an option for something to try before putting out a lot of money for a new DISA. Just an idea. Keep up the great work.
• Two great products. - Sunday, July 14, 2019
  I love both products and I saved money. Keep up the good work. I'm looking forward to what's coming in the future.