One hour install but instant pep in the wheels. Turbos sound good regained the pep I lost with 3 inch lift and heavy wheels and tires.

Thank you it fixed perfectly I would love to see you develop more body style for the 2015 Nissan Altima

Ordering, customer service when ordering, shipping super quick, customer service before install, all 5 stars. Great people to work with. And if your looking for a little low growl at idle and coast, a nice louder growl under power, great balance for comfort but still get some sound and performance.

I love it so much just like they should have come our factory like that and would highly recommend to anyone who are also car enthusiasts!

Coming from a 2023 3.0 Premium Supra, my Hyundai Santa Cruz needed some serious response time improvement as well as some off the line Pep. Stillen helped with both. The Santa Cruz will never keep up with a Supra, but its at least tolerable thanks to a Stillen upgrade. Roll-on for passing is 100% better as is Towing with the added torque. Well worth the upgrade.

I had an issue with my truck getting warmer than I liked while sitting in traffic, this solved my problem

My wife was pleasantly surprised at acceleration! Lots more torque in normal driving situations. Great improvement for the money. I saw the prototype tests and glad it came to production. Awesome

Install was eazy to about 1 hour just loosened the two clips next to the headlights and the bolts that hold the of grille to the support pulled the grille back a little bit to remove and install the air diverters. You can really hear the turbos spool up and fell a difference in throttle response. Painted them to match the true controller

My G37x had a bad exhaust leak and I wanted to get a better sounding exhaust for the car. This catback fit perfectly and sounds good through the whole RPM range at any engine load. I’m happy I can hear myself think and enjoy my music while cruising but then also hear the engine notes when pressing hard to pass someone or when on backroads.

Easy to install and work good thinking of getting one for my wife jeep

A day into this and I’m very satisfied with this box and the results. I also have the K&N cold air intake and AWE 3” track exhaust. The spool of the boost is much faster and stronger. The A9 still knows exactly when to shift up and down on its own when not in manual mode and all the good turbo and exhaust noises are louder as well. The App loaded right up and I’m also a fan of the warm up timer that prevents you from doing too much while it’s cold. Turning traction control off seems to make a huge difference as well because the system will try to step in more now. Thanks Stillen!

worked perfect

I am so happy with my purchase and appreciate all that Will did to make it happen. The install (2017 Nissan Titan) was pretty straight forward (did it at home), and the sound is amazing; actually, the longer I've driven with it, the more refined the sound has become. I have noticed a little more mid-range umph in the truck as well. Great product and great experience.

My 3rd vehicle I purchased a stillen sway bar for
I appreciate the feel

Nice look easy to install, I haven't seen a tremendous performance boost, but I did notice more responsive throttle.