[RickRay]

Originally Posted by Brownhornitt

Listen to The Camaro Dreamer. This explanation is spot on.



See above. And I'll add that the JBA shorties sometimes have a seal issue at the flange, which is why they sometimes throw a CEL. The DT shorties are welded there, and therefore don't have that same issue.

Thanks

Originally Posted by CamaroDreams07

The shorties are typically not throwing CELs because they don't screw up the rear o2 sensor readings. The Doug Thorley shorties I think are the only ones so far that have had zero CELs.

To the op: you have to first decide on long tubes or short tubes.

Long: more power, but will throw a CEL and you will need a tune probably to get rid of it, emissions problems.

Short: Less power, awesome sound, no CEL, no need for a tune, emissions legal

Once you pick long vs short, then you can debate which brand you want to go with within that category.

Thanks and I will be getting the Shorties ...maybe the DT...