8 Products
Collection: Cat-Back Exhaust
SPELAB Cat-Back Exhaust
A cat-back exhaust system is an aftermarket exhaust system that replaces the components of the exhaust system from the catalytic converter to the exhaust tips. The term "cat-back" stands for "catalytic converter back."A cat-back exhaust system typically includes the following components:
Mid-Pipes | These are the sections of the exhaust system that connect the catalytic converter or resonator to the muffler. |
Muffler(s) | The cat-back system may include one or multiple mufflers, which help reduce exhaust noise and improve exhaust flow. |
Tailpipes | These are the sections of the exhaust system that extend from the muffler to the exhaust tips, providing the exit path for the exhaust gases. |
The main purpose of a cat-back exhaust system is to improve the performance and sound characteristics of a vehicle. A cat-back system can offer benefits such as:
Increased Exhaust Flow | Aftermarket cat-back systems are often designed with larger-diameter pipes and less restrictive mufflers, allowing for better exhaust gas flow. This can potentially lead to improved engine performance by reducing backpressure. |
Enhanced Sound | Cat-back exhaust systems can provide a more aggressive and sporty exhaust note compared to the stock exhaust. |
Aesthetic Upgrades | Cat-back systems often come with larger or differently styled exhaust tips, which can enhance the visual appearance of the vehicle's rear end. |
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POWERSTROKE
- EGR Delete Kit
- CCV PCV Reroute Kit
- DPF Delete Exhaust
- DPF Delete Dual Exhaust
- Muffler
- Tuner
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- Downpipe
- Air Intake Kit
- Intercooler
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- Fuel Tank Sump Kit
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- External Fuel Pump
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DURAMAX
- Tuner
- EGR Delete Kit
- DPF Delete Exhaust
- DPF Delete Dual Exhaust
- Muffler
- CCV Reroute/delete kit
- Intercooler
- Intercooler Pipe Kit
- Radiator
- Downpipe
- Up-Pipe
- Intake Elbow Bridge Kit
- Cooler Line Kit
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- Oil Pan
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- Fuel Filter Adapter
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FOR CUMMINS
- EGR Delete Kit
- EGT Relocation Kit
- DPF Delete Exhaust
- CCV Reroute/delete kit
- Tuner
- Intercooler
- Intercooler Pipe Kit
- Radiator
- Valve Cover
- Intake Manifold
- Coolant Bypass Kit
- Coolant Leak Repair Kit
- Fuel Rail Plug
- Race Fuel Rail
- Fuel Tank Sump Kit
- External Fuel Pump
- Muffler
- Oil Catch Can
- Turbo
- Air Intake Kit
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Let customers speak for us
from 2273 reviews
Fit like crap. As did the down pipe. I got ppe ones and no refund from spelab

Fits very well and is really well constructed. Also looks really good installed in the truck!

Fit, "Like a glove!"

Didn’t have an issue with the install. Instructions weren’t real clear but overall the install was easy. Parts seemed to be good quality.

Fit nice and looks great!

I love it wish I had a tuner for my truck now, but I love it thank you

Perfect fit! I love your products!

I love this intake manifold and heater delete all in one kit, I would put one on every cummins. I got the horn style without the EGR parts and it puts me at ease knowing I'm not going to be getting vaccum leaks at all the block off plates and have to deal with that pesky butterfly valve. This kit really woke up my truck, I wasn't expecting a whole lot of gains but they are definitely there. I run an aftermarket turbo setup, bigger injectors, fully deleted, straight piped (4" but want the 5"), custom tuned, cold air and manual swapped, so like I said I didn't feel it would make a difference but I felt the difference. Love this companies products and am looking to go with there sick valve cover and maybe there 5" exhaust before long.

Great price and works amazing. For the price I thought it would be cheap but it's not its great quality perfect fitment and looks amazing id recommend to anyone thinking about getting rid of the stock one. Worth every dollar

Comes with everything needed. I bought the intake so there was no need for some of this kit so if your buying a intake as well save some money and get the one without the valve delete. Quality parts id buy it again

Worked out amazing with great fitment. With the stock 4 inch downpipe this makes it a complete 4 inch straught exhaust so saves money from having to buy a full 4 inch and sounds the same and ships alot faster

very awesome good fit easy install

Everything worked perfect, the gaskets and caps were all easy to install and sealed great. The pipe was a direct fit. I opted out of the muffler and super happy. Not much drone at all on the highway. And with my tune I went from 16mpg to 22mpg very well priced kit and easy to install

Love it
EASY TO INSTALL
GAVE MY Truck the power that I was looking for .
💯 Recommended 😁👍

Fantastic build quality, easy access fill and drain plugs and, easy to see sight glass.