AMS Downpipe!
AMS Downpipe!
Looks like I need to get my credit card out again... Damn it
http://www.amsperformance.com/cart/A...-Downpipe.html
http://www.amsperformance.com/cart/A...-Downpipe.html
It looks like a nice peice but $450 is kinda steep for an o2 housing dp. I'm complaining but I'll probably buy it. I would like to see these downpipes tested in various situations against the o2 downpipe with dump.
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Does AMS kick butt or what!

I have a question though...
If I install this AMS DP to my stock cat pipe, is Stage 2 as simple as a pill change / or removal and a reflash to the Cobb Stage 2 map?

I'd like to keep my stock cat pipe for the "appearance" of staying within emmisions rules for my State as well as to minimize noise.
I have a question though...
If I install this AMS DP to my stock cat pipe, is Stage 2 as simple as a pill change / or removal and a reflash to the Cobb Stage 2 map?

I'd like to keep my stock cat pipe for the "appearance" of staying within emmisions rules for my State as well as to minimize noise.
I do not see why the replacement of the OEM downpipe with AMS' will alter your current emissions. If the Cobb tune leaned out the A/F's, then adding a better flow with the new downpipe but keeping the OEM Cat should be similar to what you already have i.e., passing emission testing ... but I am speculating here.
Later, Ken
Later, Ken
I do not see why the replacement of the OEM downpipe with AMS' will alter your current emissions. If the Cobb tune leaned out the A/F's, then adding a better flow with the new downpipe but keeping the OEM Cat should be similar to what you already have i.e., passing emission testing ... but I am speculating here.
Later, Ken
Later, Ken
I know just changing the DP won't alter emissions, and I want to keep my stock cat pipe for emissions "appearance" and to minimize exhaust noise.
I'm currently at Stage 1 (Perrin tune, HKS drop-in and Perrin CBE), so I was asking if I were to install this new AMS DP (keeping my stock cat pipe), how easy would it then be to go to Stage 2...just a pill change or removal and a reflash to an off the shelf AccessPort Stage 2 map that supports a drop-in filter?
At least I'm hoping it's that easy.
Being cast, you do not have to worry (well, not nearly as much) about cracking; so I think this is the only logical choice for a DD car.
This combined with the Garrett turbo and Full-Race manifold would be one insane combination.
Last edited by spdracerut; Apr 2, 2009 at 03:00 PM.




