Author: SPELAB Mechanical Engineer (focusing on car modification for 10 years)

SPELAB Exhaust Cutout Kit installed on Dodge Charger 392:

Exhaust Cutout Blog starts:

First of all, in terms of automobile exhaust, exhaust cutout plays the role of the best of both worlds.

The louder and higher-pitched exhaust sound makes us more excited. When you need a louder exhaust sound, you only need to press the switch, and the exhaust cutout can be done. And when you need to pass quietly and low-key, the same switch will be pressed, and the exhaust cutout will bring you the quietness and lowness you need at any time.

The significance of the existence of exhaust cutout : You will need a louder exhaust sound for some time.

 As a feature of automobile exhaust emission device and installed under the car, exhaust cutout is necessary for its durability. Except for the installation of about three hours for the first time, we do not want to spend time on maintaining and repairing the exhaust cutout, so the material and quality of the exhaust cutout must be reliable.

SPELAB Exhaust Cutout  Quality Assurance:
1. The material of the exhaust pipe is 304 stainless steel
2. The material of the exhaust elbow is carbon steel surface plating
3. The material of the exhaust unit valve is 304 stainless steel + aluminum alloy
4. The single internal motor gear is made of powder alchemy
5. Thickened exhaust port
6. Reinforcement of valve bolts

 

Here is a video that perfectly reflects the quality of SPELAB products and how individual parts are assembled into an exhaust cutout as a whole.

Exhaust Cutout System - SPELAB Customer Installation Example:Nissan 350Z

SPELAB exhaust cutout1

 

The exhaust cutout is installed between the header and the muffler in the exhaust system. When the electronic shut-off valve is closed, the exhaust gas of the vehicle is discharged from the exhaust pipe through the muffler. But when you open the exhaust cutout valve, most of the exhaust and exhaust noise will bypass the muffler and be exhausted through the Y-tube, bringing a loud sound.

There are two ways to install the exhaust cutout : welding and clamp fixing. Choose your own installation method according to the type of exhaust cutout. This SPELAB customer uses welding.

 

Spelab exhaust cutout 2

 

 

 Here, you can see the amount of space required for all components. The flapper valve and the motor are connected to the Y-shaped pipe by a three-bolt flange. The valve itself has some built-in swing space in the bolt hole to make some fine adjustments to the angle after installation.

 

exhaust cutout 3

 

 

 Whether the chassis can be installed at a very low height is also a problem that many people worry about. This SPELAB customer’s car is a 350Z, and the chassis height is lower than that of a family car, which proves that the general height chassis can be equipped with exhaust cutout. Because the elbow of the SPELAB exhaust cutout is very short, this issue was taken into consideration in the design.

 

Spelab Exhaust cutout kit4-1

 

 

 The control module of the exhaust cutout motor can be placed anywhere in the vehicle, and the power supply of the controller can be directly connected to the cigarette lighter of the vehicle. (Note: The fuse in the plug of the SPELAB integrated exhaust cutout cigarette lighter needs 10A)

From the perspective of under the chassis, the visual effect is very shocking when looking at the underside of the vehicle where the exhaust cutout is installed.
This exhaust cutout, which plays the role of the best of both worlds, seems to have no sense of violation in the chassis exhaust pipe. It feels that the exhaust system equipped with SPELAB exhaust cutout is like a complete exhaust system.

 

SPELAB Exhaust cutout kit5-1

 

 

SPELAB Exhaust Cutout Kit installed on Mustang GT

 

SPELAB Exhaust Cutout Kit installed on 1948 Chevrolet 3800

 

 

SPELAB Exhaust Cutout Kit installed on Camaro SS

 

 SPELAB Exhaust Cutout Kit installed on 2022 Honda Civic

 

Youtube network celebrity  unboxing + installation + use  SPELAB exhaust cutout whole process video:

SPELAB Exhaust Cutout Kit :: Product Details

5 comments

  • Jeff Armstrong

    Is the price per pair?

  • Brian gant

    What would be the part number for a 2016 charger rt 5.7L ?
    Thank you, looks like a great product !

  • Mike Toland

    I ordered the cut outs a year and a half ago there was some confusion initially with the order being shipped once that was worked out they arrived were installed and made a very noticeable difference immediately with the horse power.

    I installed them on a 2007 LS2 corvette . The resulting sound or the resulting rumble was awesome.

    I HIGHLY RECOMMEND THIS PRODUCT TO ANYONE WANTING MORE PERFORMANCE AND SERIOUS RUMBLE

  • RICHARD BETTERS

    what would be the exhaust cut-out kit for 2008 C6 corvette base model LS3 eng, 6-spd. trans.

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