09 Viper.
Looking at removing oem cats and installing high flow cats to reduce side sill heat.
Do the oem cats have 2 oxygen sensors installed on each side, or is there just 1 installed in each of the oem cats per side?
Looks like the Bellanger high flow cats are manufactured to accommodate 1 oxygen sensor for each side.
If the oem cats have 2 per side, what do you guys do with the wiring for the second oxygen sensor?
Any benefit in upgrading to the cats with metal substrate for an unmodified street driven car?
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