Is a custom exhaust worth it?

A custom exhaust system can improve your engine’s performance by making it more efficient.
2. With a custom exhaust system, your engine will be able to burn more fuel and provide more power.
3. The horsepower and torque of your engine will also improve, helping it perform better than before.

Is it better to run 93 instead of 87?

Standard 87 or 89 grade gasoline is recommended for most cars on the road.
2. It is perfectly okay to use premium 90-93 gasoline in a standard vehicle with no risk of damage to the car, according to car experts.
3. However, using a higher grade of gasoline than what is recommended for your car may provide no benefit.

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Can I run 87 on a 91 tune?

You should NEVER run lower octane gas than what your tune requires. It can definitely result in pre-ignition/detonation. If you can, I would reflash back. Make sure you run that tank completely dry. Then fill up 91 and reflash again. 23 May 2008.

Can you mix 93 octane and 87 octane?

Mixing regular or mid-grade gasoline with premium gasoline will not damage cars that are designed to run on regular gasoline. However, if you mix these gasoline types in a car that requires premium gasoline, it could cause engine knocking or damage to the fuel system.
2. It is safe to mix regular or mid-grade gasoline with premium gasoline in cars that are designed to run on regular gasoline. However, if you mix these gasoline types in a car that is designed to run on premium gasoline, it could cause engine knocking or damage to the fuel system.
3. Mixing regular or mid-grade gasoline with premium gasoline will not harm cars that are designed to use regular gasoline. However, if these gasoline types are mixed in a car that is designed for premium gasoline, it could cause engine knocking or damage the fuel system.

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How much HP can an ECU tune add?

A ‘tune’ is a device that updates your car’s ECU or computer, giving it different instructions on how to deliver power to the engine.

2. This tune will unlock your engine’s full potential, adding 15-30 horsepower and 20-30 lb-ft of torque on most basic cars.