Best EL catless header?

[2much]

Originally Posted by AceHeader-MT

Sorry, gotta plug.

ACE 4-2-1 (even comes with gaskets and decals).

Sounds awesome and has pretty good welds
http://www.ft86club.com/forums/showthread.php?t=80609

Nameless and JDL are also very good options

Is the Ace header even in production yet? I havent seen any examples besides your r/d in your thread

[AceHeader-MT]

Originally Posted by 2much

can anyone even buy the Ace header yet?

Oder from our website, or talk to CSG

All headers are hand made to order. 4 weeks from date of purchase anywhere in the world.

Are headers are on cars in Europe, South America, Asia, Africa, and Australia. No one from the US has ever ordered from our website, guess guys were waiting for distributors?

[steve99]

Originally Posted by solidONE

Can I see the dyno graphs? I'm barely making 196hps with Tomei EL on a E85 tune and 181hps with 91 octane (stock headerback).

Just beware of "claims" by header makers/tuners, a lot of them "forget" to mention the full header back exhaust and/or drop in filter or intake added as well as the tune and header, probably on a nice cold morning or evening dyno run on 93 octane from a selected known good outlet to get the figures they claim.

[SpectreRT]

Originally Posted by solidONE

Can I see the dyno graphs? I'm barely making 196hps with Tomei EL on a E85 tune and 181hps with 91 octane (stock headerback).

To OP: The Tomei kit will probably be the most complete kit even if the performance gains are no as great as the others. You get gaskets, antiseize and heat shielding barrier to stick on your oil pan. You'd be lucky to even get gaskets with any other brand.

Dyno sheet attached Yes, a little torque dip but I honestly don't feel it. It's only there for ~ 1K RPMs (from ~3,500 to ~4,500). Even then, I'm only losing ~ 20 ftlb trq as compared to before the header/tune. It really made a massive difference. And, staying above the torque dip is super easy.

As @steve99 stated, here is full disclosure of my "power making" full list of mods:
- Tomei EL Exhaust Manifold (Header)
- Tomei Overpipe
- Invidia Catted FP
- Perrin Catback (Resonated)
- Stock Intake Box w/Drop-In Filter and Silicon Inlet

Amazing value on this header, but its not near the quality or potential of the PTuning header.

[wparsons]

Originally Posted by AceHeader-MT

Oder from our website, or talk to CSG

All headers are hand made to order. 4 weeks from date of purchase anywhere in the world.

Are headers are on cars in Europe, South America, Asia, Africa, and Australia. No one from the US has ever ordered from our website, guess guys were waiting for distributors?

Any chance either of your headers would be offered with a high flow cat? I can't picture if there would be room in the overpipe with the 4-2-1 or not.

[churchx]

My bet is that if it took greater efforts to prolong runners by running two pipes instead of stock one where overpipe is, then almost certainly cat won't fit there. Probably if two cats are must have, then it's easier to put both in front pipe + bung for O2 sensor + sensor wire harness extension.

[raven1231]

Guys he doesn't care how it drives, just that it makes 200 on some dyno

[wparsons]

Originally Posted by churchx

My bet is that if it took greater efforts to prolong runners by running two pipes instead of stock one where overpipe is, then almost certainly cat won't fit there. Probably if two cats are must have, then it's easier to put both in front pipe + bung for O2 sensor + sensor wire harness extension.

If you look at their 4-2-1, it goes past where the stock overpipe would mate to the stock header, and includes their own overpipe. I'm wondering if they could squeeze a cat into the overpipe or if it's too tight.

[churchx]

But that custom two pipe overpipe ends where stock one does, so to be able to bolt it to stock rest of exhaust, or to most aftermarket ones, that all are designed as stock replacements. So if in overpipe portion there is no more space, cat can be put only after it, where stock frontpipe starts. So you need custom frontpipe. And if so .. why not put whatever cats one needs in it?

[solidONE]

Originally Posted by wparsons

If you look at their 4-2-1, it goes past where the stock overpipe would mate to the stock header, and includes their own overpipe. I'm wondering if they could squeeze a cat into the overpipe or if it's too tight.

That overpipe area is really tight as it has to have that curvature to go over the front sway, I seriously doubt you can fit anything like a cat in there. catted front pipe is the only option.

[solidONE]

Originally Posted by SpectreRT

Dyno sheet attached Yes, a little torque dip but I honestly don't feel it. It's only there for ~ 1K RPMs (from ~3,500 to ~4,500). Even then, I'm only losing ~ 20 ftlb trq as compared to before the header/tune. It really made a massive difference. And, staying above the torque dip is super easy.

As @steve99 stated, here is full disclosure of my "power making" full list of mods:
- Tomei EL Exhaust Manifold (Header)
- Tomei Overpipe
- Invidia Catted FP
- Perrin Catback (Resonated)
- Stock Intake Box w/Drop-In Filter and Silicon Inlet

Amazing value on this header, but its not near the quality or potential of the PTuning header.

Is all that noise from the header back worth the extra 10 or so ponies? lol old man issues...

For efficiency (MPG) you really need to stay and cruise around 3000rpms in a lot of situations, and that when you'll notice the loss of power most. Again... old man issues haha

[SpectreRT]

Originally Posted by solidONE

Is all that noise from the header back worth the extra 10 or so ponies? lol old man issues...

For efficiency (MPG) you really need to stay and cruise around 3000rpms in a lot of situations, and that when you'll notice the loss of power most. Again... old man issues haha

I like the noise. And I'm also an old man. haha

My MPG went up after the header and tune. If i'm not driving like a jackass I get ~ 30mpg consistently.

[AceHeader-MT]

Originally Posted by raven1231

Guys he doesn't care how it drives, just that it makes 200 on some dyno

Hey Raven, you're 1/2 correct.

Yes, we aim for 200+ HP on a true dyno pull.

If we didn't care how it drove our cars wouldn't be so fast

[AceHeader-MT]

Originally Posted by wparsons

If you look at their 4-2-1, it goes past where the stock overpipe would mate to the stock header, and includes their own overpipe. I'm wondering if they could squeeze a cat into the overpipe or if it's too tight.

Also correct, unfortunately our design does not account for a cat in the OP section. Nameless with their "up and over" design may. We used the OP section to build long runners for increased torque which nameless did with their unique concept.

Post OP is possible but may require some creative thinking.

The right header is out there for everyone, maybe it's our, maybe not. We just love these cars and want development to keep improving.

Happy driving
Team ACE