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Actual unsolicited customer testimonials

"Used the German Auto Solutions DISA Valve repair kit to finally fix my DISA Valve. It was certainly in poor condition...as soon as I unbolted it ...it started flapping around, loose with tons of lateral play. Also, the existing O-ring was shot. You could see a few areas where it was kind of wavy and would probably cause a vacuum leak. Gary's kit most certainly is of the highest quality and I'm glad I bought it instead of another crap OEM DISA Valve.
My immediate impressions are:
1) The kit is first rate in quality, fit and finish. Gary included EVERYTHING necessary to get the job done.
2) I immediately find my car to be idling more smootcrd s14y on Cold Start up with an increase in responsiveness off the line. I can definitely see and feel that something was amiss with the DISA prior to the rebuild. I am also much more comfortable knowing that the pin that holds the flapper cannot now back out and head directly into the engine. As it turns out, the pin on my valve WAS loose and very easily removed with just the tip of a small flathead screwdriver."
-bimmerfest.com forum post

"I just installed the DISA Valve repair kit. The kit is well designed, high quality and everything included. The flapper valve has a very nice black finish. Very easy to follow the instructions. I did not need to remove any components other than the DISA Valve. My DISA had over 80k miles on it and the plastic bell crank was brittle and one of the retaining tabs broke when removed (see photo). My DISA gasket was flat and just barely sealing the manifold. All in all an easy project and now I don't have to worry about a DISA failure!"
-bimmerfest.com forum post

"Well done on the kit. I got my kit last Saturday and installed it yesterday. The quality of the parts are superb. Thanks for including everything we could need in the kit. It took me 1 hr to do the replacement. The hardest part was getting the retaining ring off and back on, and also removing the built-in rubber gasket and cleaning the entire assembly. Everything else went smooth."
-bimmerfest.com forum post

"If any of you guys are on the fence about getting one of these kits i can tell you first hand that it is well worth the money for such attention to detail. Not to mention it is an extremely conservative price for a part that has no competition, except for a $200 factory valve which will just fail again. Moral of the story is "GO BUY THIS PRODUCT ASAP" You will not be disappointed. Thanks again Gary for an awesome product."
-bimmerfest.com forum post

"I believe the idea is to prevent failure of the OEM plastic parts. It is well documented that these parts can, and unfortunately sometimes do, end up in the intake manifold. From there it's only inches to a cylinder, and then - well we all know the rest. From my standpoint, if these metal parts eliminate the possibility of a trashed engine, I think it's well worth the cost. And as a machinist myself, I can guarantee you the guy is not making a bundle of cash on this deal. I look at it as an insurance policy."
-bimmerfest.com forum post

"German Auto Solutions's DISA flapper and bolt assembly's workmanship was superb. Let me reiterate again that this is a great improvement from the stock DISA."
-bimmerfest.com forum post

"Got my disa repair kit today. Must say, it is very easy to fit, instructions are very good. And craftsmanship of the kit is superb."
-bimmerfest.com forum post

"This kind of customer service is unheard of!!!!
This guy who has a monopoly of the DISA repair kit - decides to do the ff:
* redesigns the failing part to last a lifetime
* uses the best quality materials (aluminum and titanium) 
* tight tolerance on parts for a perfect fit
* complete kit down to the O-ring, grease, loctite, washers ......
* price the kit very reasonably
* spends more time to help customers with their individual issues!

I am a customer for life. BTW i have 4 more cars with DISA to do."
-bimmerfest.com forum post

"Hi, I just got my DISA repair kit today from Gary and I have to say I agree with most everyone else who has bought one that this is some really nice kit. The assembly went smootcrd s14y and like others, the hardest part was cleaning the old o-ring out. My DISA practically disassembled itself, so that part was pretty easy. I thank you very much Gary for getting my repair kit out ASAP and sending it out express mail. You run a solid business and I plan on buying from you again in the future."
-bimmerfest.com forum post

"Gary, I received one of your 3.0i DISA Valve rebuild kits back in Feb. I am so lucky that the original valve stayed together long enough to let me rebuild the thing. We have a 04 X3 3.0i. it now has 87,000 miles. The DISA valve was ready to fall apart. When I removed it, the yellow Teflon pivot lever was worn to the point that it did not even hit the flapper valve. The stainless pin was partially out but the only thing keeping the flapper from falling into the intake manifold. The new kit installed, functions great. The fuel mileage is back to 20.5 combined and 24 Hwy. The performance is back. Thanks for such a great solution."
-bimmerfest.com forum post

"I fitted my kit on Saturday. Everything went fairly smooth on my car with 187,000 kms (116,000 miles). The pin was ready to fall out when I initially pulled the valve out of the manifold. It's a good thing we were warned to remove the valve slowly to reduce the chances of the pin falling into the manifold. Thanks for a great product Gary!"
-bimmerfest.com forum post

"I just pulled my DISA valve out and what do you know,,, the lower part of the flapper is busted, ( no more smooth rotation). your titanium or ss Pin design wouldn't have done that. I need a rebuild kit Gary! Help, I'm new to this forum."
-bimmerfest.com forum post

"Gary, Thanks so much for the DISA repair kit. The kit made an amazing difference and restored power I didn't realize was gone. The loss of power occurred slowly over time so I had no idea how much power I was missing. The car drives like it's new again (OK - I might be exaggerating just a little). It's a great design, an easy fix and in my case solved a several year old air leak mystery. Thanks Gary."
-bimmerfest.com forum post

"Machining is what sets aside the "proper" parts from the mass produced dregs of China and Taiwan. It's also what separates BMW from the likes of Ford...and Hyundai. They are getting better, but I bet they change the cutting heads a lot less frequently and accept a lot more slop in the whole process. With that in mind, when I opened the small box from German Auto Solutions, my eyes opened wide. These pieces are works of art! I had never seen the inside of my DISA valve, but I knew it didn't.....couldn't look this good.

OK, so not only do they out do themselves with the machining but they have complete directions, which are very easy to follow, with plenty of pictures. They go SO far out of their way to make sure you don't screw it up, I was starting to feel offended with all the disclaimers and warnings. C'mon, this ain't my first ro-de-oh!!

"Got the kit I ordered yesterday and did the repair/install today. Seems to have worked great! High quality parts and excellent instructions. Thank you, Gary!

Also I'm glad that I did this now, as when I was taking my old DISA apart I caught this: The pin was starting to protrude from the housing it is supposed to be flush against. It is not a very long pin, nor is it threaded. It wasn't loose, but it did not take all that much effort to pull out. I'm actually pretty shocked by how bad of a design the OEM part is!

Very impressed by the redesigned replacement parts that will ensure this sort of risk of metal bits falling into the intake manifold will never happen again! Just like the GAS page describes, the plastic lever's hexagonal stem had worn away and begun to get rounded off causing the flapper to rattle and have a much less precise motion. Gary's kit is how the DISA should have been designed by BMW in the first place!"
-bimmerfest.com forum post

"I installed the G.A.S. kit last weekend on a 2002 330i with 114K miles. My original DISA valve was still in good shape with no noticeable play in the tapered hex joint, and it took a good deal of force to pry the bell crank off the flapper. I also purchased the 1.2 bar coolant cap.

As everyone can attest, the kit is top notch. And as alluded to by Gary, the real issue is the hex joint. After a bit of clearance forms, it really is just a matter of time until the bell crank works itself free, and if left that way for too long, the free wheeling flapper could take out the frame and cause more serious damage.

From what I can tell, the real benefit of an aluminum flapper is that it allows for a secure mounting point for the titanium screw and, therefore, a tight press fit for the tapered hex joint, which as noted is what starts the ball rolling toward gloom and doom for the OEM design."
-bimmerfest.com forum post

"Gary, you should be called Mr. P, for precision. What a work of art. I received my repair kit today and just finished up repairing the spare wobbly DISA that I had from a spare manifold I had bought. The kit is a work of art and your instructions on the website are great. The DISA valve on my car was fine up until a few weeks ago (have had it in my hands and checked quite a few times while working on intake/auto gas stuff) but, I started to notice a rattly noise from the DISA which stopped when I pulled out the connector on top. "
-bimmerfest.com forum post

"Extreme speed!!! great!!! Thanks!!!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Very well made precision parts! easy installation!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"So much better that the original!! Thanks!! A++++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Great workmanship and fast shipping"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"great quality"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Nice product fast shipping"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"I just installed this repairing kit and everything fitted without any problem."
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Wow Really great product! So easy to repair the DISA with it." 
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"great thank you A*****"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"super fast shipping will do business again AAAAAAAAAAAAAAAAAAA+++++++++++++++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"great product fast shipping"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Excellent product quality, much better than OEM, very fast ship"
BMW 3.0L M54 DISA ADJUSTER UNIT 330i 530i 730i X3 Z3 Z4 E39 E46 E53 E60 E65 E66
-eBay purchase feedback

"Thank you So Much Very Very Gooood~~~~"
BMW 3.0L M54 DISA ADJUSTER UNIT 330i 530i 730i X3 Z3 Z4 E39 E46 E53 E60 E65 E66
-eBay purchase feedback

"Installed yesterday. Thank you!"
BMW 3.0L M54 DISA ADJUSTER UNIT 330i 530i 730i X3 Z3 Z4 E39 E46 E53 E60 E65 E66
-eBay purchase feedback

"Arrived so quick, and the quality of the kit is excellent, higcrd s14y recommended."
BMW 3.0L M54 DISA ADJUSTER UNIT 330i 530i 730i X3 Z3 Z4 E39 E46 E53 E60 E65 E66
-eBay purchase feedback

"awesome save a tone of mooney"
BMW 3.0L M54 DISA Valve Repair Kit - E39 E46 E53 E60 E65 E66 E83 E85 X3 Z3 Z4
-eBay purchase feedback

"Great prices and great communication, higcrd s14y recommended, A++" 
BMW 3.0L M54 DISA Valve Repair Kit - E39 E46 E53 E60 E65 E66 E83 E85 X3 Z3 Z4
-eBay purchase feedback

"fast shipping, very nice"
BMW 3.0L M54 DISA Valve Repair Kit - E39 E46 E53 E60 E65 E66 E83 E85 X3 Z3 Z4
-eBay purchase feedback

"Great Kit - solved the problem for half the price of new! Great Transaction AA++"
BMW M54 DISA Valve Repair Kit - E39 E46 E53 E60 E65 E66 E83 E85 Z3
-eBay purchase feedback

"Awesome! Fast shipping! Thanks. Hope to do business again soon! A++++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Outstanding service"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Item works as advertised. Super fast shipping. Good ebayer A++++++++++++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"awesome buy"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Great product, fast shipping, A +++ seller thanks"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Excellent!!! Thanks!!!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Installs easy. So it fixed my issue"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"A very good product, very high quality!!!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Awesome kit, the best kit I've seen, item shipped quickly, thank you...AAAA+++++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Great product, thanks!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Aaaaaaa++++++++++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Great item as described and better than expected, will do business in a future"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Good product at hard to beat prices. Fast shipping, recommend higcrd s14y."
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"A+ !!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Replacing gave me peace of mind!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Super people to deal with."
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Great product. Excellent transaction. Higcrd s14y recommend."
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Fast Shipping. Great Quality Kit. Well thought out. Thanks!!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Worked on cars 30 yrs, best kit ever. Super."
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Good seller. Good quality parts. Now fitted and has made a vast improvement!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Item is as described. Quality item. Fast shipping. Car now works like a charm."
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"EXCELLENT Product great seller. Fixed my car saving me 200+ dollars. AWESOME"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"good product fast shipping thank you! A+++++++++++! BMW 01 X5"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Smart and affordable option to complete DISA replacement.. excellent quality"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"well made, excellent instructions, better than BMW!!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"super, best quality, thank you from Germany"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"great product and received faster than expected!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Kit worked great, easy to assemble,thanks A+++"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Fast shipping and product is described, tested and works great! Higcrd s14y recommend!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"Kit worked great easy to assemble"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"GREAT product! Better than expected. A+"
DISA INTAKE MANIFOLD ADJUSTER UNIT 320i 325i 525i X3 Z3 Z4 E39 E46 E60 E83 E85
-eBay purchase feedback

"Excellent product and great customer service!!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

"GREAT Product - perfect fit !! SUPER FAST shipping.! THANK YOU!"
DISA INTAKE MANIFOLD ADJUSTER UNIT 330i 530i 730i X3 X5 Z3 Z4 E39 E46 E53 E60
-eBay purchase feedback

This is only a small fraction of the positive feedback we have received since we released this repair kit. We will be more than happy to post the negative feedback to, if we get any someday.

I've read enough - I want to buy one.