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Chevy C7 Corvette Down Pipes (Off-Road Use Only!)

C7 Corvette Down Pipes (5)

Chevy C7 Corvette Down Pipes (Off-Road Use Only!)

When it comes to adding power and a little more grunt to your C7 Corvette, replacing your stock catalytic converters with aftermarket off-road only use C7 Corvette Down Pipes, aka “test pipes” or a “cat delete” is an option worth exploring. Although the primary function of the cat is to remove harmful toxins from the exhaust gas, the process through which this happens is very restrictive and robs the car of vital power. The cats on many stock production vehicles represent a great potential point of improvement if you are in a racing situation where the Federal emissions regulations are no longer required.

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (1)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (2)

As you can see above, catalytic converters on most vehicles are restrictive and inefficient when compared to test pipes. Many factory converters were created with total production cost being the biggest limiting factor in design. Meaning a more restrictive design may be the most economical for a manufacturer to produce. On most vehicles, replacing the stock cat with these C7 Corvette Down Pipes will remove flow restrictions inherent in the standard system and really help remove much more exhaust gas from the engine. Even without further modification to the exhaust system, test pipes are a good way to add decent power to a stock engine.

Have a look at the images below to see the overall design and construction of our straight through C7 Cat-Deletes

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (3)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (4)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (5)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (6)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (7)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (8)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (9)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (10)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (11)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (12)

Everything is hand tig welded and fabricated in house here at Fluid MotorUnion so there is no cutting corners during production.

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (13)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (15)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (16)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (17)

Chevrolet Corvette C7 Cat Delete Pipe Fabrication (18)

Deletion of the catalytic converters has long been a very popular aftermarket modification to any vehicle. Removing the cats frees up this horsepower and also removes the greatest point of restriction in the exhaust system. Although there are gains to be had when these cat deletes are the sole modification to the vehicle, just like cold air intakes and cat-back exhausts, test pipes work best on vehicles that have other performance add-ons. Simply put, aftermarket cat deletes are power multipliers. The more performance equipment you have on your vehicle, the more power a set of test pipes can add. If your vehicle already features several other modifications, such as an intake, cat-back exhaust, ECU tune, forced induction or a nitrous system, then headers have a lot more to bring to the table. It actually makes a lot of sense; if the less restricted air from the headers encounters something restrictive such as a catalytic converter, then the gains won’t be nearly as apparent.

Sometimes cat deletes are included with headers, and sometimes they are standalone pieces of replacement pipe, similar to what we developed for the C7 corvette; it all depends on the model of vehicle. On this C7 Stingray, the cat deletes added a much more aggressive tone to the exhaust note.

7 Comments
  • Phil McKraken
    Posted at 07:45h, 27 May

    So now this Corvette is ready to go off-road?

  • fluidmotorunion
    Posted at 14:06h, 07 June

    It is Off-Road ready!

  • Victor B Morris
    Posted at 13:03h, 06 August

    I have a 2015 Z06 with a Corsa X pipe. I want to run main cat delete system. Does your pipe have a sensor so that my car won’t throw any codes?
    Thanks
    Vic

  • fluidmotorunion
    Posted at 16:40h, 08 August

    If the Corsa system is a direct bolt-on then this should match to the flanges we use (OEM style). As of now the only way to turn the CEL off is via a tune or you can try an O2 spacer. We’ve used these in the past but we haven’t tried them on the C7’s yet. (Off-Road use only!)

  • Mark
    Posted at 14:25h, 27 January

    i lost bottom end TorQ ,adding a borla X pipe and mufflers to my c7 z06 the X pipe deletd the secondary cats/resonators , i am disapointed, car does sound better though, but now car lost take off torQ.

  • fluidmotorunion
    Posted at 17:22h, 31 January

    Testing with our downpipes done on both cars with and without secondary cats, saw gains in hp and torque. Even more when coupled with our tune!

  • Ryan
    Posted at 07:26h, 17 May

    Would love to find a set of these that fit my 2012 Z06; I might even run a Corsa catted cross pipe if I could find an off-road downpipe.

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