Cooper813 catless dp review

Jackis

Member
Contributor
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Mazda 3 MPS
Hi all!
Last september I bought cooper813's downpipe (which is also known as SpeedAction). I was quite a bit frightened at first because of no reviews, but the price was quite sweet and they did handle international shipping.
So I got it, installed and drove until now w/o any CEL or problems so far. Boost response improved significantly, and overall impression made me happy for about a month or so (until it began to snow hardly here :) Installation was not so easy because of sensors were very hard to remove from stock DP, I had to heat them and only so I succeeded.
Then, after I got it, seller removed this item from listing (may be, he was out of stock), but now it is back and the price is even more sweet than it was (219$ and free US shipping). Don't want to post a link here as it is not an adv or smth like that (if you wish, you can easily find it youself on sellers store).
I remember, there were some discussions around about cooper813's items. Just my 2 pennies - I can confirm that my item was just as described and I had no problems with it.
 
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Thats great to hear, I have heard Cooper's test pipe is pretty legit too. There is a sound clip on youtube of a resonator and test pipe mod, sounds bad ass. I believe it was from a member from here, chief wiggum.
 
Good luck bro, I heard DP's are what's causing most of the turbo smokes problem, something about the difference in pressure before and after the bearings.
 
Thanks, Speedy Junkie! :) I was already smoking, PTP pill + turbo reassembling helped me :)
 
Hi all!
Last september I bought cooper813's downpipe (which is also known as SpeedAction). I was quite a bit frightened at first because of no reviews, but the price was quite sweet and they did handle international shipping.
So I got it, installed and drove until now w/o any CEL or problems so far. Boost response improved significantly, and overall impression made me happy for about a month or so (until it began to snow hardly here :) Installation was not so easy because of sensors were very hard to remove from stock DP, I had to heat them and only so I succeeded.
Then, after I got it, seller removed this item from listing (may be, he was out of stock), but now it is back and the price is even more sweet than it was (219$ and free US shipping). Don't want to post a link here as it is not an adv or smth like that (if you wish, you can easily find it youself on sellers store).
I remember, there were some discussions around about cooper813's items. Just my 2 pennies - I can confirm that my item was just as described and I had no problems with it.


I really wanted to purchase one of that cooper. I like its price. I am really interested with that item. You did a good deal! (nana)
 
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