What causes Subaru exhaust sound?
The Subaru boxer is of the horizontally-opposed flat design. That’s only part of what gives it that unique sound, however, as it’s more about the design of the headers. The 2.5-liter Subaru engine makes use of something called unequal length headers, which are exactly what they sound like.
Do you need tune after Catback exhaust STI?
Cat-back exhaust systems affect the region of exhaust after the catalytic converters. They may let more sound flow through, but CB systems do not affect the aspiration of the engine. As a result, Cat-Back exhaust systems do not require an updated tune.
Is the STI worth it over the WRX?
The STI is clearly the better performer, but it can cost over $14,000 more than the WRX. The base WRX is an excellent performance car at a great price. If you need a few more comfort and convenience features, upgrading to Premium or even Limited trim won’t break your wallet.
Why is my Subaru engine loud?
A failing or dirty sensor can send incorrect data, resulting in too much or too little fuel going to the engine. This can result in a rough running engine that is louder than normal. Bad or Dirty Spark Plugs: Bad spark plugs can cause the vehicle to misfire which will make it run louder.
Why are STIS so loud?
Jason Fenske of Engineering Explained says the reason the WRX STI sounds so unique is due to the unequal length headers in the 2.5-liter Boxer flat-four. It’s a love affair with WRX/STI owners who won’t be letting go of the iconic sound anytime soon. It’s part of the Subie culture.
Does a cat back exhaust improve performance?
An Increased Horsepower The cat-back exhaust system provides a vital boost to ensure the vehicle produces maximum horsepower and torque. The cat-back system has a larger diameter than a standard muffler; the wide opening creates more space for the free flow of air.
Should you tune your car after cold air intake?
But should you? For a quick answer – no, you don’t need to tune your car after installing a cold air intake. Tuning your car is expensive and for doing it only to optimize a cold air intake is not worth the money. A cold air intake is a cheap and easy upgrade that does not require tuning.