AQ Motorsports Downpipe
05-28-2012, 04:20 PM
#1
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AQ Motorsports Downpipe
I'm considering a Catted Downpipe for my '04 STi
Has anyone here used a AQ Motorsports / Harman Motive Downpipe?
Looks like a clone of the Cobb setup. The AQ is about $100 cheaper and I'm trying to figure out why.
I don't mind paying a few bucks to get quality parts. I really like the cast bellmouth design as it's stealthy and I can hide it under the factory shielding
Invidia or MadDadd kinda scream "I'm not stock or smog legal"
Thoughts and opinions welcome
Has anyone here used a AQ Motorsports / Harman Motive Downpipe?
Looks like a clone of the Cobb setup. The AQ is about $100 cheaper and I'm trying to figure out why.
I don't mind paying a few bucks to get quality parts. I really like the cast bellmouth design as it's stealthy and I can hide it under the factory shielding
Invidia or MadDadd kinda scream "I'm not stock or smog legal"
Thoughts and opinions welcome
05-28-2012, 04:22 PM
#2
Yeah I really want the mad dad set up but it's spendy.
I've been curious about the cast set up. How durable are they? Don't most companies put a logo on them anyways? Are they efficient? I don't really know the difference.
I've been pretty set on the divorced set up from maddad... the v2, since it came out.
I've been curious about the cast set up. How durable are they? Don't most companies put a logo on them anyways? Are they efficient? I don't really know the difference.
I've been pretty set on the divorced set up from maddad... the v2, since it came out.
05-28-2012, 04:37 PM
#5
Yeah I really want the mad dad set up but it's spendy.
I've been curious about the cast set up. How durable are they? Don't most companies put a logo on them anyways? Are they efficient? I don't really know the difference.
I've been pretty set on the divorced set up from maddad... the v2, since it came out.
I've been curious about the cast set up. How durable are they? Don't most companies put a logo on them anyways? Are they efficient? I don't really know the difference.
I've been pretty set on the divorced set up from maddad... the v2, since it came out.
-- Ed
05-28-2012, 04:38 PM
#6
I used to be all about the divorced wastegate design as well, but the more tuning I did, the less benefits i've seen. A well designed bell mouth generally works as well or better than most divorced pipes. The theory behind divorced pipes makes sense but in practice it doesn't seem to make any significant difference.
-- Ed
-- Ed
Since I'm planning to try and slide an EJ257 long block passed smog I'd like to keep it as lowprofile as possible. (thx for the input on that question before. I let that mess slide)
05-28-2012, 04:40 PM
#7
The cast pipes are usually a little heavier. In terms of sturdiness, I don't think I've ever seen any downpipe break up there, so there's no difference there. I think the cast pieces are cheaper these days than fabricating a sheet bell mouth so most companies are going that route. The important part is the design of the bell mouth.
-- Ed
-- Ed
05-28-2012, 05:33 PM
#9
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i have the harmen motive catted dp and it works great.. no problems with it. very similar to the cobb but i think the cobb tapers down to a 2.5, where the harmen motive one is full 3'' correct me if im wrong
05-28-2012, 07:56 PM
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So Ed let me ask this: money is no object, what's the best catted down-pipe?
I image flow and power is pretty consistent, what fits and doesn't leak?
I image flow and power is pretty consistent, what fits and doesn't leak?
05-28-2012, 09:20 PM
#12
-- Ed
05-28-2012, 10:19 PM
#13
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Hmm - it looks like Invidia only offers a true bellmouth on the non-catted version of their Downpipe.
The Cobb flange looks a hell of a lot cleaner than AQ Motorsports in photos. I plan to run my stock cat back, so after buying an adaptor the cost is within $60.
Probably gonna go with Cobb and do it right the 1st time
The Cobb flange looks a hell of a lot cleaner than AQ Motorsports in photos. I plan to run my stock cat back, so after buying an adaptor the cost is within $60.
Probably gonna go with Cobb and do it right the 1st time
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