Yeah, not really impressed.

 

damn...evo owners are stingier and hate more than what i respectfully come from (the srt crowd).

AMS is doing nothiing but showing their results. jesus.

goodjob AMS on the results, and thanks for sharing.

 

haha no kidding. i had an ichira test pipe with the hks catback. so it was apples to apples really. added a 02housing dp and ams exhaust. sounds the way i want and ADDED POWER. meth injection might be next....

 

I have this turbo back but why not make it a full 3''inch

 

I think what these guys are saying is that any TBE would result in about the same gains...the brand seems pretty irrelevant. It comes down to volume levels, looks, etc. from what I can see. You can go with a $750 system or the $2k+ (like I did since it is 'pretty').

 

I don't think I've ever seen a true 3" inner diameter exahust. They're pretty much all 3" with a 0.05" wall thickness, which I assume is because that's what the tube stock is typically available in. Most of the systems I see just quote the 3" outer diameter and make no mention of wall thickness, and I was surprised to see AMS went into that much detail on their specs.

In any case, it is 3" all the way through, according to their page.

 

Well..... you take one 3" tube and replace it with another 3" tube, there's not going to be much difference in power. On a turbo car, there's really not anything in the way of pulse tuning like for a NA header.

There is some power to be gained in systems where the exhaust splits into two mufflers; i.e. how well the split is done. But for the most part, the price comes down to fitment, quality, materials used, sound, etc. Not as much performance. There is performance to be gained in the small details... but not a ton.

 

No hating at all. I spent enough to have an opinion.
$35 HKS Drop-In + Tune $500= 70WHP
$2,500 in Bolt-on's = 9WHP

I feel an FP Red $1199 + Injectors $399 + Pump $75 = $1673 would have made more sense and more power. That's all.

 

That would be very odd to pick up only 9hp from those modificaitons. What type of dyno was it done on?

-Chris

 

This thread is a tiny bit misleading. It makes the HKS exhaust look like an inferior part compared to the AMS exhaust. But, the comparison wasn't equal. If you throw the DP/test pipe on the HKS exhaust, you would have seen the same results (within a couple hp). So, this thread isn't about "truth in results" when it comes to HKS vs. AMS. This is really a test showing that you can get some nice gains from a DP/test pipe. And we all know this already.

 

geez why the negativity?? this is an awesome post that shows more than most on the subject. Being someone without a baller's budget this really helps, the only thing i would of liked to see would be the difference between a downpipe by itself then the test pipe or vece versa. Just so someone who has to buy parts slowly over time can make the best choice for the money. But hey awesome post anyway.

 

Guys before this spins farther out of control as the customer said in post number 18....the car had an ichira test pipe on before the swap.

So the car went from:

Stock downpipe and O2 housing
Ichira test pipe
HKS catback

to:

AMS Widemouth downpipe
AMS test pipe
AMS Catback.

I say knowing that 30WHP is a HUGE jump!!!!!

Eric

 

something certainly isnt right here.

same dyno both times?
Was boost altered at all?
wast the car tuned following those parts being installed?

Eric

 

Misleading.

It was the DP that made the difference and we are not sure if the AMS is better than any others because it wasnt a complete name brand setup switched to another complete name brand setup.

 

These results look about right.

There is nothing odd about these results.

As one of the largest users of AMS parts I can tell you the parts work even better when used in combination.

Sometimes using them with outside parts doesn't provide the desired result. :-)

Sean