Got my ARH Headers X-pipe installed!

[M3Frank888]

Recently got my ARH Header X-pipe installed

ARH Headers Ceramic Coated
X-Pipe w/ High flow Cats and Resonators

Feel the car can really breathe a lot better especially during the power bands at any gear 4k-8.4k of m3 e92. Really feel and hear the exhaust gas pass thru fast freely. I also noticed with the swain tech ceramic coating I dont feel as much heat coming out of the engine compartment.

Dyno
I gained 19-20rwhp and about 10-12tq
M3 e92 Stock w/ afe intake.

Going to get car tuned and see what numbers I get.

- Frank

[Dave07997S]

Originally Posted by M3Frank888

Recently got my ARH Header X-pipe installed

ARH Headers Ceramic Coated
X-Pipe w/ High flow Cats and Resonators

Feel the car can really breathe a lot better especially during the power bands at any gear 4k-8.4k of m3 e92. Really feel and hear the exhaust gas pass thru fast freely. I also noticed with the swain tech ceramic coating I dont feel as much heat coming out of the engine compartment.

Dyno
I gained 19-20rwhp and about 10-12tq
M3 e92 Stock w/ afe intake.

Going to get car tuned and see what numbers I get.

- Frank

Thanks Frank for reporting in...

Those numbers are pretty much in line what the car would pick up with test pipes.

Dave

[8600RPM]

I think it's clear now if your not supercharged, headers only make sense if you just love the sound over a regular catless xpipe. Otherwise you are looking at 15 to 20 whp gain either route. Sadly to me headers, as in the v10 s85, take an exotic engine note and make it a more deep American v8 sound

[Hujan]

Originally Posted by Dave07997S

Thanks Frank for reporting in...

Those numbers are pretty much in line what the car would pick up with test pipes.

Dave

Originally Posted by 8600RPM

I think it's clear now if your not supercharged, headers only make sense if you just love the sound over a regular catless xpipe. Otherwise you are looking at 15 to 20 whp gain either route. Sadly to me headers, as in the v10 s85, take an exotic engine note and make it a more deep American v8 sound

The abrupt disappearance of ARH confirms to me that the proof was not in the pudding. It would have been very easy to dyno their system against, say, the Dinan midpipe to show their system's gains over an already-catless car. Their systems would have sold like hotcakes. That proof never came and ARH seems to have disappeared.

Anyone looking to replicate the gains, even supercharged people, could probably get there with an MRF-style x-pipe for much less money.

[cenix]

I was following all the ARH threads too, and don't recall ever seeing a straight honest to goodness dyno plot/graph on the headers for NA. Really didn't make sense to me that a manufacturer of any performance product wouldn't want to spend the relatively small amount of money to substantiate and validate their product. Sales would be brisk for sure.

[thgem72]

What I would have liked to have seen is area under the curve. Max HP is great, for example, part of the benefit of a stroker is where you live every day in addition to absolute power. Simplifying everything to one number is misleading. However, I agree that ARH has fallen short in not providing ANY real world support for their product.

[Dave07997S]

This issue is also.showing up in the Mustang world.as well. People.only dyno at best 10rwhp over cat deletes. Just isnt worth the money nor the effort.

[M3SQRD]

Originally Posted by cenix

I was following all the ARH threads too, and don't recall ever seeing a straight honest to goodness dyno plot/graph on the headers for NA. Really didn't make sense to me that a manufacturer of any performance product wouldn't want to spend the relatively small amount of money to substantiate and validate their product. Sales would be brisk for sure.

+1

Wasn't ARH 'guaranteeing' their (headers + x-pipe) system would produce 25-30 WHP over a 100% stock e9x M3?

[Nick ARH]

Didn't disappear guys. I've been tied up with multiple projects including two huge corvette shows.
Frank thanks for posting. I'd love if you posted your graphs to show forum members the results across the board. I expect, based on recent testing done at Powerhaus Performance that you'll be up around 30 wheel with tuning. Thanks so much for choosing ARH. Enjoy!

Nick

[8600RPM]

30 whp with tuning is the same as any catless setup so again, these headers add no extra power and once again reinforces why every header company over the years never make it with people buying product as factory e92 m3 headers are as good,as it gets for naturally aspirated, high rpm band power

[oolas3]

Get test pipes with a tune and call it done.

[squartus]

Yep same thing that has been said all along, get test pipes and a tune. Use the money you saved to buy some nice volk wheels or something.

[MFL]

Fuck it. Lol.

*drops mic*.

[ilikebmxbikes]

i do believe these headers provide additional over a standard NA fbo e9x. I am betting it is 5-10whp.

To some people 5-10whp would be a good gain and to others it wouldn't. Arguing worth is pointless. Some guys on here spend $8k on wheels while some buy cheap $1k gravity cast wheel sets... we all have different situations and priorities.

[Leonardo629]

So we learn the header is useless, again....

[whats77inaname]

Originally Posted by Leonardo629

So we learn the header is useless, again....

I would say that the gains are definitely more pronounced for s/c'ed cars vs n/a cars.

[8600RPM]

Originally Posted by ilikebmxbikes

i do believe these headers provide additional over a standard NA fbo e9x. I am betting it is 5-10whp.

To some people 5-10whp would be a good gain and to others it wouldn't. Arguing worth is pointless. Some guys on here spend $8k on wheels while some buy cheap $1k gravity cast wheel sets... we all have different situations and priorities.

Based on what? 20 whp is standard for catless xpipe gains.30 with a,tune.

[ilikebmxbikes]

Originally Posted by 8600RPM

Based on what? 20 whp is standard for catless xpipe gains.30 with a,tune.

based on bimmerworlds header/x pipe results

[8600RPM]

Which are compared to a catless xpipe or test pipe? Their headers also use a catless xpipe so again there is no data that exists out there to answer the question

[ilikebmxbikes]

Originally Posted by 8600RPM

Which are compared to a catless xpipe or test pipe? Their headers also use a catless xpipe so again there is no data that exists out there to answer the question

here you go.

http://store.bimmerworld.com/bimmerw...px?Thread=True

[_M3]

I'd like to see what gains these headers/xpipe are making between 4-7k rpm over test pipes with a tune.

[Dave07997S]

I'm not arguing that full length headers have some gain over just test pipes, I agree with this. Its just the cost of admission when you include the hassle of the install its not worth it IMHO, especially if you have to put the car back to stock to have it smogged every 2 years.

Dave