Best LS performance shop around! I truthfully only trust my car in the hands of Bob. This shop is amazing! You wanna go fast? Bring your car here. Tell Bob what you want and let him build you a wicked fast beast. Seriously! Driven my 1100rwhp big turbo SS for 2-3 years reliably now!!! Couldn’t ask for a better build! You will not be even remotely disappointed ever with Next Gen! Love my 🍊🏁

Bob put together, installed and tuned an LSA package on ‘14 Caprice PPV. It rips, absolutely rips. Also installed 4-pot Brembos, King Springs, Monroe shortened struts, Stainless Works headers and other upgrades. Clean work and couldn’t be happier, can’t take out car without someone offering to buy it. Five stars, thanks Bob!

LS Whisperer! Next Gen will turn your car into a reliable rocket ship! They have a dyno in-house which is amazing!

They dont make them like Bob anymore. Honest, straight up, and all around great guy. You wont be disappointed. Thanks Bob. Keep up the great work.

Theres very little about cars Bob does not know. Great team and great people. They will do a great job, or none.

I found this shop after having a terrible experience with another so called top performance shop in the area. Bob, the owner, had to fix all of the problems from the prior shop, and add some things that were necessary for my build to work properly. To make a long story short, we eventually had to replace the short block due to the negligence of the other shop. The entire time during this process, Bob was great at staying in communication with me, letting me know what was going on with my truck. He is extremely knowledgeable and very talented with his tuning abilities. He will be honest about the the parts you need and is upfront about costs. The guys he has there, Andrew and Nick are very good mechanics. I will never go anywhere else for anything I need with my truck. Thanks again guys!!!

First off let me say . I have a 2004 Chevy Tahoe Z71 Flex Fuel. I swapped out the 5.3 for a 6.0 and had a well known shop tune it for me. The well known shop did do quality work( I upgraded a couple of things)but the truck never really felt right. I got tired of throwing $$$$ at it only to have the same results. I felt the well known shop was avoiding retuning my truck. Because they said it was fine . I knew better because of the spark knock I was experiencing. Anyway I started calling up a bunch of shops and decided to go with Next Gen. Im glad I did! What a difference there tune has made. My truck feels amazing for a naturally aspirated overweight fat pig 🐖 and no more spark knock! Im definitely going back for Next Gens turbo kit( More power!). The quality of the stainless steel materials they use combined with the welding skills and talent of there fabricator + a very capable tuner = Great results! If you live near by Next Gen and are considering getting work done stop in and see for yourself! You wont be disappointed! Keep up the good work Next Gen ! Thanks for the excellent work on the tune! See you soon for a turbo kit!

Thank again brother. As another shop owner great to find other guys I can rely on to send work to. Great tuner who knows how get it done.

Hands down one of the best performance shops in the Chicago area. They provide top notch service and their customer service and dedication to the customer is one of the best I have ever experienced. They are the only people I will have work on my car. Awesome staff. I highly recommend without reservation.

These guys are awesome! I had an intake and cat back system installed here and could not be more happy. Customer service, is in my opinion, top notch. Their knowledge was also extremely vast. When picking up my car, one technician offered to put my old parts in my other car without asking. As I was leaving, I had questions about future work Id like to get done and I was amazed to see that multiple technicians came out to give there opinion on options. They actually seem to be more interested in cars than the money which is amazing! Thank you guys very much! My C5 and myself will be seeing you shortly!

These guys have been more than helpful during my LSA supercharger install. I wasnt even having them do it, but any questions I had they were very quick to reply and treated me as their own. They gave me great prices on the parts I did buy from them and are very knowledgeable They will be tuning my car once its ready.

Bob and his team are the most honest and straightforward mechanics I have ever met. Hes been taking care of my 2 (old) cars for many years and writing this review is the best way I can think of to repay him (outside of cold hard cash, of course). I highly recommend this place.

Awesome people. Great work. Fair pricing. Ill be back whenever I have any meds for my muscle cars.

Reasonable prices great work and a good environment! They sat me down talked about what I wanted to get done, they planned it out right there with me couldn’t be happier with the build! I’ll deffinitly be comming back!

Used to work there this place is awesome! nothing but honest hard working guys there quality work at affordable prices!

I was having some issues with my car so I brought it here to get it all sorted out, all I can say that’s they did a really good job and that was everyone I spoke to was extremely helpful

Absolutely the BEST !! these kids are wonderful, they know exactly what they are doing . Bobby the owner is as HONEST as they come . I would not trust my vehicle with any other place. He sure knows how to fix a car. I would give him a 10 out of 10 .

Havnt been through enough work to confirm there the best but damn near it. Worked on my camaro SS pre built by another shop and was running terrible. Took it to next gen with the recommendations of many others and could not be anymore grateful for making it push more power through a great tune and a few simple fixes along through the car. Good price Great timing and great work. Highly recommended

Great work and great place. I would recommend to anyone.

Best performance shop in the area nowhere else like it

Bob. Thats all you need to know. Nobody else Id rather have put his hands on, or in, my vehicle.

Only bad thing is i dont live closer to them.I have no problem travelling the two hours to have them work on my vehicle.

Great guys and great work and rates

Experienced and knowledgable technicians

Top notch!

Bob is the best

Place and people are good.