04-27-2015, 01:25 PM
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#28
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Drives: 2000 Camaro SS
Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,179
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Quote:
Originally Posted by '14-ELLIE
Is it true that the SW retro chambered (ZL1) can actually hurt the dyno numbers when used with a TT?? I ordered the 3" catback to improve the flow over my 2.5" NPP on my 1LE, but now I am nervous it may actually hurt me. Any insight?
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No, not at all. If anything going to a 3 inch system will help.
Quote:
Originally Posted by Burt
You'll be fine running a full 3" system, particularly since the larger exhaust should give you less backpressure, and let the turbos spool a little quicker. Older motors couldn't compensate for changes in backpressure, so if you dropped backpressure without tuning for it, it could hurt performance, but a modern car will automatically compensate.
There is a group of guys who have a YouTube channel called The Smoking Tire, and they have an accompanying podcast on a website called ShoutEngine. Recently, they had a guest on who has worked as an engineer at Magnaflow, and that was one of the things he pointed out. That episode in particular is a good listen.
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