Name: J&S Performance and Tuning
Item: J&S Performance and Tuning
Rating: 5
Author: Henry Culp

Henry Culp

Rating

I had my 2007 SS Trailblazer tuned by J&S. I only had a CAI, long tube headers, off road y pipe and a cat back. I cannot tell you how pleased I am with the results. And the smoother running of the engine and the HP gain. And the throttle being supper snappy. Great work and worth every penny. I recommend them to anyone! A+++
4 years ago
Amoreena Jones

Rating

Latest update… just shy of six months and piston rings are done. Bottom line here – J&S did a poor tune, no dyno (claiming wheel setup and bags prevented it yet CAP, RPM, BAILEYS HYPERFORMANCE will do it) & no TCM flash. I don’t care on bit for the lack of accountability, attitude or deflection. You guys know you did a poor job and you should be reimbursing money back to me. But it’s ok, I will continue to spread the word through every social media outlet, through all the car groups in Colorado because no one should go to you guys for a tune. Additionally, one of the cornballs you had do a review for you doesn’t even have his vehicle running properly after you all touched it. The guys cars stay broken down… so his review is a lie. Don’t even come back with some defensive reply guys… I’ll be spreading the truth around to all my followers. Trust and believe that I am thankful you all won’t be touching my new car.
4 months ago

Speed Shop Source

J&S Performance and Tuning