Quote:
Originally Posted by spdrcrgtr
Right now I have catless downpipes + single mid-pipe ... volume is a bit louder than I want and would like to reduce/eliminate the smell, but curious how the catted downpipes compare against catless from a power/hp standpoint.
I'm sure they produce less power, but how much and any noticeable spool/turbo response differences?
Has anyone tested this and will it help with smell/volume reduction?
Thanks!
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I got the AA catted downpipes with GESI UHO Gen 2 cats from Mike @ x-ph over the weekend.
These are the only downpipes that don't lose horsepower when tuned as EACH cat is rated for 850 hp.