Same thing here parts were junk and wouldn't replace also wanted to charge me to ship back.

Dealing with Ken is like dealing with a teenager. He knows nothing and everything all at the same time. Save yourself alot of money and buy your Alternators from a professional! read more

I ordered a starter from these Scumbags and they sent me a China distributor. When they were contacted, they said that it is past the return window and refused to send me the starter that I ordered. Unethical, dishonest, poor customer service - do not buy from these scumbags!!! read more

Received the package in perfect condition but the Converter was bent and damaged as if it was damaged before it was put in the box. I reached out to the seller to try and resolve the issue but was given generic go ask Amazon answers. Seller also refused to refund my return shipping despite the issue being their fault. Avoid this seller and avoid a headache if you have an issue. read more

Everything received week earlier than expected date. Could not ask for better service. And the Quality of the parts has by far past the higher cost Big branded competition. Thank You Ryan at KMJ Performance . I will be ordering a set of Performance Aluminum Heads for my .650 lift cam 350,71c10 read more

Forget trying to return something "used" after you find out it isn't compatible, they won't issue an RMA. Claim their policy is only new or unused can be returned, although NOTHING on their Terms & Conditions page states this. If you're dumb enough to buy something from them, pay with PayPal so at least you have some kind of recourse. And Terry is a clown. read more

Read all the other comments as I agree, they sell junk and do not stand behind it. I bought an intake manifold from them. The item was not what was advertised. This item was of very poor quality. It was either a very old left over item being liquidated or a counterfeit item. It does not represent the current product line at all. I took the item to a local Speed Shop who compared to current manufacture products and confirmed the item was more than likely a counterfeit item as it does not represent the current products from the company. Be aware this vendor will not pay return shipping. If you buy from them and there is an issue you are stuck shipping it back, if they will accept it at all. Took emails and phone calls to reach person who would not support the products they sell. They would only state the item is what it is, sorry... It is so obvious the item is of poor quality, yet they think it is fine to sell. Be aware of the stuff they sell as they will not stand behind its quality. I guess it is like an auto parts Harbor Freight, get what you pay for... Use a different vendor with good customer service. read more

This company should be put out of business - for the sake of everyone that has, will or may ever deal with these clowns. Complete scam artist. Still waiting on full refund from purchase, now over a month ago. Customer service flat out sucks. read more

It says in the description that you can use the stock cooperator cooperator but that's not true at all Because the guadrojet Hits the intake when it tries to open The doors So you have to use a 1" spacer And even worse The choke Will not hook up to the carburetor at all with this intake. Very disappointed. And the only help I got from Them is we are sorry. Very bad business. Do not order from them Unless you want to get screwed And love waste and time and money. read more

This business is a complete joke. 13 friends including myself came to town and had two days of dyno time booked. They called 3 DAYS in advance to cancel on us and tell everyone they are shit out of luck. It is my professional recommendation that KMJ Performance go chug a bag of dicks and get fucked. Big shout out to JRTuned and Off the Line Performance for still getting the tuning arranged elsewhere for us. #OffTheLinePerformance #JRtuned read more

Absolute trash. I tried to buy a 727 transmission pan and seal and they declined my card for some reason. So i decided itndeclinde id just go to summitracing. Well this pos charged my account three more times at 43.18 a peace ! Then when i call them they cant fo anything and i just gotta wait. They took over 150 bucks and just want me to wait for it fuck them. Shouldnt have taken the money out of my account in the first place i didnt buy the item ! read more

I have been in the motorsports industry many years in my life. We all want less cost, and added performance. KMJ has been committed to providing that for many many years. I know this company and their employees work hard to provide the best product available. The awesome thing about KMJ is you can pay for the brand name or get equal performance with their own productline. If you go to their store you will see they sell thousands of parts and process hundreds of orders a day. When someone reads a review they want honest review not the one customer out of 5,000 that didn't like his product. I'm confident if you have an issue, KMJ will take care of you. Not many companies give back to the racer and consumer like KMJ. Enjoy your good deal! read more

This company makes the worst quality products. I bought several of their products to do a budget build and none of the products fit correctly. Not only that some of the products don't even work right out of the box. Electric water pump wouldn't turn on right out of the box and they expected me to pay shipping to send the bad one back and pay shipping for the replacement. For their shitty product. The ignition set I ordered has the worst wiring schematic and the wire color codes do not match the wires coming out of the ignition box itself. The harmonic balancer is not balanced properly and cause a ton of issues with my engine costing lots of money to have fixed. It's all cheap and for a reason... It's all cheap shit! It's a major ripoff and will cost you more money in the end then buying a good quality product to begin with. Don't waste your time or money with them. read more

This place sells import junk and does not stand behind the crap they sell. They should not be in the business they are in as they don't know anything about the products they sell. I've been building small block chevy motors since the 1970's, nothing but problems with KMJ Performance parts and no hope for a refund, buyer beware! read more