When I first got my 2013 Kia Optima, the first place I had to find was a store that had after market parts, but more importantly had Korean Spec parts. I came from the JDM scene and love getting JDM parts to set my ride apart from the USDM specs. So when I found K5optima store, it was a no brainer. After some research I realized that the store was in the city just over the hill from my Parents house (Simi Valley) and where I grew up. So I hit David up to visit his store while I was in town for work and visiting my parents (I now live in Las Vegas). David was nice and more than welcoming and we set some time for me to visit. Well when I got there I was very impressed with the shop. The store was very clean and not some Micky Mouse shop. I have visited many shops before and most of them are just warehouses with a glass display up front with smalls and everything else had to be ordered or not available. This was not the case here, the shop had all the goodies you see online on display. Head lights, visors, emblems, spoilers etc... He even has a set up, so if you want to see how some new fogs will look or a headlight brightness... he presses a button behind his desk and whola, lights are on and in full display. For a Kia owner it was paradise to be able to see all the parts up front and in person. As for customer service, David was very nice and answered all my annoying questions, and trust me I had a lot. If you ever have the opportunity to check out the shop, please do not hesitate to head out and say hello and maybe pick up a few parts you have been eying. I bought lots of stuff that day and will be posting all my mods in separate threads. I know I have an older Kia, but always helpful for other n00bs like me out there. Thanks David and Im sure I will be stopping by for more purchases in the future... - Pete read more

I sent the store a real simple email about my dissatisfaction with the steering wheel emblem in which I called it junk. I got an immediate email response from the owner Dave telling me I had tone in my email. I should have known then what type of person I was dealing with. In the end he asked for my number and called me. He was IMMEDIATELY condensing and every time I wanted to talk about my complaint he wanted to talk about his 1k, 5 star, reviews on the stores website that he owns and runs... Of course you have perfect reviews if you can hand pick and choose what stays and what goes. He then cussed at me and that's when the true Dave came out. He was very ignorant and wouldn't let me speak. He then got very ignorant with my wife and accused me of being a wife beater. Buddy you stepped over a line. I have never placed a hand on any female in my life. So here we are. I made a yelp account just to post this. I am sure he will have some response to this, like he does with all of his 1 star reviews, but it's ok. We have disputed the charges on our card. I will be happy to send him his product back if he wants it and if he will refund ALL of my money. He got his feelings hurt because I called an emblem, he made, junk. I would imagine you don't talk like that to people in person so that's why you talk to people like that on the phone. I have heard and seen more professionalism out of a 12 year old. Dave if you want to try this again you have my phone number. Except this time you are polite to me and my wife. And like I said earlier. I'd be happy to send your products back to you for a full refund and yes, for the steering wheel emblem that you, yourself said was only 9 dollars. read more

I've been scoping this website out for awhile. I've always been skeptical about 5 star ratings because the cynical side of me thinks its always an inside job; friends giving great ratings to help promote the business. Well I'm glad to say I was wrong on this one. David knows how to run a business because customer service is obviously his priority. I've had nothing but good experiences dealing with his online store and himself. He really makes sure what you order is what you really want. My first order was a coilover system for my k5. Immediately I receive a phone call from him to verify my purchase. I tell you, there's nothing better than being acknowledged when you place an order. The product I received was top notch quality. This of course enticed me to place a second order, in which David immediate calls me again to verify my order and gave me some tips about the product I ordered. This definitely was not a fluke. David definitely knows how to take care of his customers. I am now a loyal customer for all my k5 needs. read more

I'm writing this review for the K5 Optima Store and it its sister site K8 Stinger Store. I've only dealt with David, and there is a reason he's doing well. He will always try to help you out and give you great information with any question you may have. He definitely knows his stuff! On top of it, he is down to earth and understands business needs as well. I am the Parts Manager at Gerald Kia of North Aurora in Illinois. Shipping is always quick & the parts are always good quality or OEM from Korea. My customers have us install the K5/K8 Products to add the nice finishing touches that truly enhance & add features of the car. Let me put it this way. The way David does business is a dying breed, and that's a shame. So I'm happy to write this review. He's a professional, caring, and respectful individual who is passionate for what he does. Whether you're an individual or a business, just message or call him. He will take care of you. read more

Today David from the K5 Optima store, demonstrated why he is a class above all when it comes to customer service and care! This summer I had ordered the New Face Shifter for my 2012 Optima SX Turbo. Unfortunately it was discontinued. David went out of his way to try and get one for me. Unfortunately all of the older style of the shifter were discontinued. I was devastated. 4 months later, and I got the call of a lifetime.David took it upon himself to personally notify me by phone that there was a shifter available for me if i was still interested. I responded with a big "yes"!! I have purchased many items from the K5 store, and I plan on being even more loyal to this store. The products are one of a kind! The customer service, from David is amazing, If anyone out ther owns a Optima, make sure you go on the K5 Optima Store, Discovering this site has changed my life in a positive way. read more

Dear David(K5 Optima Store), I just wanted to say a very big thank you for the service you provided it worked absolutely like clockwork. I was really impressed even before I have placed my order(has been convinced by other customers), that you arranged and shipped to Toronto immediately everything was absolutely immaculate as it was packed(All parts matched description and pictures from the website). I've been able to simply unpack and install all parts- no need to look for "broken or scattered pieces". I will always mention your service to anyone it would serve well. I really can't thank you enough for your help when we needed it the most(regarding courier shipping delay ) If you are a car enthusiast or just regular customer looking for top notch service,please contact K5 Optima Store - I could guarantee you won't be disappointed Kindest regards, George Karagyaurov read more

Only 5 stars ? - this is where products and customer service combine to make a need for a larger scale. There are many "look good" tuning and aftermarket parts out there, that really don't do well from behind the steering wheel. David does the best job of weeding through, finding, and offering his customers great quality products that perform as advertised......and look great.........couple that with a beyond wow factor of product support.......bottom line - the service and pricing is always very competitive,.....but K5Optima outperforms a call center drop set up. I don't even shop around anymore for my Optima tuning parts when he offers something in that class. I know it will be of best quality...... Take note of how many people here call reference to David by name - shows how much he values his customer's and his customer's value him....... read more

I think the store is great and the products as well. The problem I have with them is their product reviews being totally biased. I bought numerous products from them a few months ago and posted reviews on their site; a few reviews at 5 stars and a few at 3. None of them got published because they were not all 5 stars. However, multiple reviews on various products have been published since then from other buyers. It is not very business like to only allow positive reviews. The first 10+ pages are only 5 star reviews. With that being done, the customer cannot make a good buy. All they see is the positive reviews and nothing else. Even if you aren't going to publish the bad reviews, do you think it's a bad idea to at least contact the person and try to fix the problem? End result: Nice products overall, bad business ethics. read more

I have met David personally and he's by far the best vendor I've ever worked with in the automotive industry. He is extremely knowledgeable and more than happy to educate you about his products and their functions. David was always available to answer any of my questions and he will go above and beyond to make sure you are satisfied with your product. Recently purchased both his UTUNE performance tune and the LED DRL's and I couldn't be more pleased with either of them. David has great prices and does not put profits ahead of his customers, unlike many of the other companies I have encountered during my customization process. I highly recommend purchasing your next modifications from David! read more

Before ordering my products I spoke to David. He has great customer service and really cares about the customer. David answered all my questions promptly and had lots of knowledge. I received the products and they were great. Unfortunately, one of my products got messed up (my fault), so I wrote David an email. He promptly contacted me and explained why it happen and what I should do to avoid it happening again. He even offered to replace my part, even though it was my fault. K5 Optima Store (David) always puts the customer first and their products are great; most importantly, they stand by them. I would recommend them and their products, and I'm definitely going to be a returning customer. read more

I don't make a point of leaving feedback for people online unless it is warranted. David at the K5 Optima Store has been nothing but Spectacular in all of our dealings. I have never ordered or installed mods on my car before. My wife ordered me some things for my Optima as a Christmas gift. When I opened it up and one piece was missing there was a note on the invoice letting me know that the one piece was out of stock and it would ship the minute it was back in stock. A few days later it arrived in the mail. David has been more than generous answering all of my newbie technical questions as well. If I need anything for my Optima down the road he is the guy I will be going to. read more

If I could leave a review higher then 5 stars I would. David and the crew at K5OS are awesome. They always have exactly what I'm looking for, I'm on my 5th kia in 4 years and always get quality products without the hassle of an Ebay or a fake china part. Everything I have ever ordered has arrived faster then expected, and been perfectly accurate to its description on the web site. The diy links on the site save me hours of forum searches, and they are always down to help on the phone whenever I have questions. I am a customer for life. Im not sure how you could have a negative post about this store, or the crew. I am extremely satisfied with everything from them. read more

I just found my new favorite place to spend my checks! I went in and spoke with David today and he was really enthusiastic and knowledgeable about all the products he has. I really liked that about him and if I wasn't on the clock I could have easily stayed longer to talk about all the future upgrades I'll be putting on my 2015 optima ex! I walked out with a full set of black and chrome emblems as well as a set of k5 valve stem covers... both products are high quality! As long as K5 Optima Store is around, it's the only place I'll be shopping for my car upgrades! I highly recommend checking out this shop! Thanks again David! read more

I've ordered a few items from K5 and have always had great experiences dealing with them. But recently I ordered the carbon fiber spoiler and it showed up damaged. Which was in no way the K5stores fault because it had clearly happened while being shipped. David the owner literally did everything he possibly could to cater to me, and make sure this wrong was righted. He went above and beyond to make sure I was happy and got me a new spoiler ASAP. I can't say enough about how well David took care of me. I will continue to order from this company and am very happy to support their business. read more

David the owner is just fantastic to deal with. I wanted to get all new interior lights for my car, and he took it upon himself to research what bulbs i would need, and created a custom package deal just for me. Any time I try to get a hold of him I get an almost instant response. Hard to believe since this is his side job. Don't know how he does it. Also got a chance to meet him in person, and I firmly believe that he would win salesman of the year if he enter such a competition. Great guy to deal with. Thanks for the aftermarket support K5 Optima Store!!!! read more

I would like to start off by saying that David at KiaOptimaStore is a great person to deal with. He helped me with a situation that I had with my initial order, and made my experience a pleasant one. He was very honest, polite and professional. It is a rare thing nowadays to find honest good people online that are willing to make lifelong customers instead of just making a quick buck. I will deal with David again, and look forward to future upgrades. Thank you again, and look forward to buying from your store again. read more

I installed the LED foglights that David sells, and loved how they looked. After a few months one of the bulbs stopped working, which happens. After contacting David he quickly sent out a new bulb. He answered my emails immediately after I sent them, and sent me the tracking info when it was shipped. Excellent customer service is so important, (and unfortunately so rare these days,) but one could not ask for better support than what I have experienced with David. Will definitely order from him in the future! read more

By far the best optima parts store Ive had the pleasure of doing business with. Their customer service is top notch as well as the quality of their products and packaging. I ordered the wrong part on their site and they replaced it with the correct one and shipped my items in a matter of hours and kept me fully up to date with tracking and shipping info. Customer service doesnt get any better than that! I will definitely be a returning customer and I fully recommend this company for all your optima parts. read more

I ordered some black 3.0 badges from here and i must say the customer service I received from David was awesome. There was a slight miscommunication with my order so i emailed upon receiving my order and he got back to me in amazing time and gave me a few fair options to try and resolve the said miscommunication. The products themselves are also very nice quality. I strongly urge anyone who is thinking about purchasing from here to do so. I will be buying from here again. read more