1 cat with long tubes
But worst of all it'd choke the engine. It would totally negate having done any work on the exhaust at all and even with headers you would probably have a worse performing exhaust setup than stock.
2 Cats, one per banj is the way to go. Cammed/bolt on LS1's are fine with Mahanflow Carsound £2 core CATS.
More extreme setups would want Metal Matrix 3" core setups from Random Technology or Magnaflow.
If you're in CA it's a different story however, as LT's aren't legal.
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Standard UK layout QWERTY keyboard

This is totally user Error! I meant 3" which is the nummber 3 key and shift number 2 key for the " inch symbol. However I must have held shift down when I pressed the number 3 key which gave me the pounds Sterling £ symbol.

I didn't know if you went and found that on a character map or if it was indeed on your keyboard. Cool fact.







