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XForce's Varex valved cat-back exhaust for the Audi S3 sedan, replacing the factory exhaust from the catalytic converter back. It is built from high-grade 304 stainless steel, with 3" mandrel-bent tubing in a brushed finish, a drone canister tube, a Varex valved rear muffler, and quad 4" double-wall tips in a polished stainless finish. Varex SmartBox Bluetooth control is included, giving wireless control of the exhaust valve through the XForce app. Installation is direct bolt-on, with all hardware included.
The mandrel-bent 3" tubing is the foundation: forming the pipe over a mandrel holds the full 3" cross-section through each bend rather than pinching it, so the gas sees that diameter the whole way back. From there the system treats noise in two separate ways - the drone canister tube works on the low-frequency resonance that turns into cabin boom, while the Varex valved rear muffler sets the character of the sound, from a quiet near-stock tone to a bold sport growl. With SmartBox included, choosing between the two is done wirelessly from the XForce app. It suits an owner who wants the car civil on an early start or a commute and loud when they ask for it, with the quad polished tips carrying the look through at the back.
Features
- 3" mandrel-bent 304 stainless steel tubing in a brushed finish
- Drone canister tube to reduce cabin drone
- Varex valved rear muffler - switch between a quiet, near-stock tone and a bold sport growl
- Varex SmartBox Bluetooth control included, valve operated from the XForce app
- Quad 4" double-wall tips in a polished stainless finish
- Direct bolt-on installation with all hardware included
Fitment
Fits the Audi S3 sedan, 8V and 8Y. If you are not sure whether your car is covered, message us with your year, trim and engine and we will confirm the fit before you order.
Does not fit: Sedan only - this system is not for other S3 body styles.
Please note: A valved exhaust is loud with the valve open. Check your local noise regulations before using it that way on the road.
Let customers speak for us
Solid shipping ,good communication ,great product 5stars all the way
First let's preface I have tried three other tuners. Not bad mounting or name dropping as they all were solid tunes. But Daniel just has that magic touch when tuning the 1.6 platform.
The car has a buttery smooth power band making the car feel like a larger displacement six cylinder over a turbo charged car. Plenty of fun to be had at any speed or RPM range.
He will take the time to get you dialed in perfectly for your car. No canned tunes here folks. And if you are a EK1 user three tunes for the price of one simply can't be neat.
I received the Stage 2 tune. Here are my thoughts:
- The shifts are buttery smooth
- I love the auto shift @2000rpm when cruising around town; saves me an extra 2-3mpg overall
- Driving in traffic is a dream now, much better than stock. I don't even hear that annoying shifting fork anymore, lol
- Any and all DCT slips are gone
- The increase in torque limit! This opened up my N75 Stage 3 ECU tune; I can feel the difference. The last time I dynoed, I got 289 lb-ft of torque. But it feels much more substantial than that!
- The clamping force is unreal. I did a run from a dig, and it hooked and slammed through the gears all the way to 7k rpm in each gear. Amazing.
Conclusion: This TCU tune is a must-have. If you have an N75 ECU tune, it is an absolute game-changer! Especially with the Redline MT-LV fluid that I'm running. I can't wait to get my retune with water meth injection. Daniel and the rest of the N75 team are the best!
Works like suppose to be fast delivery after installation 5 minutes drive TPMS sensors lights off everything is normal like from factory 👍👍👍
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Product was very easy to install and what a difference in shifting also n75 was super awesome to deal with will shop here again
After using the N75 tune for a couple of months, I can confidently say that it offers the best value for your money on the market. I've tried SXTH and LAP3 tunes before, but since switching to N75, I won't look back. With top-notch customer support, it ensures your car performs better, turning heads at every car meet.
Been running stage 2 off that bat and had some problems here and their regarding fueling. Daniel has been with me the whole way, answering questions and adjusting tunes while adding revisions whenever asked. He answers every question I ask even when they don’t relate to tuning.
Highly highly recommend N75!
Daniel's tuning and customer service makes this product a 10 out of 10. I'm new to tuning and he made the process a breeze. I literally laughed out loud when I first drove the car after installing the stage 2 tune. I still can't believe the difference.
Love the intake, fitment is superb, instal was easy and best of all n75’s customer support is stellar and way above average!
M45IL Kia Stinger GT 3.3TT Spark Plugs
Hands down best bov I’ve had, I got the part 5207 for trumpet sound and man. You won’t be disappointed. Shipping was fast & easy.
Looks great!
Fast shipping, easy to install, quality built.
Waiting for some more parts then dyno time!
Awesome
Perfect size and great location for the WMI port.
