2009-13 Infiniti G37 Sedan Stainless Cat-Back Exhaust
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STILLEN

2009-2013 Infiniti G37 Sedan, 2015 Q40 - STILLEN Stainless Steel Cat-Back Exhaust System - 504377

504377

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Product Features

  • 304 Stainless Steel Construction
  • Fits RWD & AWD Models
  • Polished 304SS Dual Wall Tips
  • Authoratative Tone Under Throttle

BENEFITS

  • 19 WHP Increase (horsepower to the wheels)*
  • Gain Torque*
  • Mild note at idle; Cruising- Aggressive note under throttle
  • Compliments the factory exhaust cut out nicely
  • Perfect solution for those who value a more luxurious and quiet cabin feel along with enhanced sound.
  • Delivers an aggressive look that matches the enhanced exhaust note.

*Results May Vary!

2009-2013 Infiniti G37 Sedan, 2015 Q40 Stainless Steel Cat-Back Exhaust System - 504377

Increase performance with the STILLEN Cat Back Exhaust for Infiniti G37 and Infiniti Q40. This exhaust features a Dual split rear exit. This STILLEN Infiniti G37 Exhaust has dual polished tips. The G37 Exhaust improves the sound and increases the performance of the vehicle.

STILLEN's Cat-Back Exhaust System helps drum up substantial horsepower and torque, giving your G37 the extra edge of performance. This Cat-Back Exhaust System is a true Cat-Back System, and is crafted of Mandrel-bent Stainless Steel for a long service life. At idle the STILLEN Exhaust is unobtrusive, and at higher speeds or under throttle, STILLEN's recognizable, performance sound is evident. This is a pleasing tone, authoritative and yet responsible. Not only does this exhaust system have a sharp, show ready look, but it also offers impressive horsepower and torque gains as well as a lifetime warranty and is easy to install.

STILLEN's Cat-Back Exhaust for the Infiniti G37 is built for power. Power that you can feel across the power band with a big gain on top. Mileage gains during highway travel can be expected as you cruise at steady speeds. The free flowing performance mufflers and tips are made out of polished stainless steel for long life. The Stillen fit and finish is second to none. The improved airflow created by the addition of the exhaust is verified by the significant dyno HP increase.

Customer Reviews

Based on 6 reviews Write a review

Customer Reviews

Based on 8 reviews
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(6)
25%
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J
Jake
Fit perfectly and sounds great!

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.

K
Kevin K
Great Sounding Exhaust

Fairly quite below 1.7k rpm with a low tone rumble but you could really start to hear it above 3k or if you step on the gas. I have an hour commute and it is not too loud for it to be an annoyance. Welds all look very good. Parts fit together well. I put rustoleum high heat primer and spray paint to hopefully avoid corrosion for a few extra years. Very happy with the purchase for the price.

C
Chris
G37x exhaust

I got the cat-back exhaust. It isn’t obnoxious at all, great quality and easy to put on! Very good sounding exhaust!

t
tony white
good replacement

factory exhaust rotted out so I replaced it with this to pass state inspections. Really happy with the quality and fitment. Looks great after multiple winters.

s
steve taylor
good fitment

well manufactured and good fitment, I just wanted something louder so I'm going to remove the resonators. I like loud exhausts!