Ace 4-2-1 Header

[Kodename47]

Originally Posted by AceHeader-MT

Mark and his team have been working for 2 years with both the 250 and the CS400. In fact, Abbey received CS400 "Prototype 0001" because of their strong due diligence and close relationship with Harrop.

I've got pics of Prototype 0001 (I believe I posted them a while back)..... work of art.

Originally Posted by AceHeader-MT

Those in the know, know Abbey

I wouldn't go anywhere else

[TruthfulDeception]

Any dyno's yet?

[Ginosaur]

Worth every cent this CS400 thing and the sound it makes is insane.

[ame="https://www.youtube.com/watch?v=IH4rc3Zq_LQ"]Toyota 86 ACE CS400 Headers and OP | K&N Filter | Invidia FP and Q300 CB - YouTube[/ame]

[tracerit]

Checking out headers again now that I've gotten Subaru to fix my leaking timing cover.

I'm looking for the quietest header. Would it be a catted UEL or an ACE CS400 (uncatted of course)? I'm not sure how much noise is suppressed by a cat.

I looove this sound here (stock EVERYTHING): [ame="https://www.youtube.com/watch?v=2Iw02bH7lfk"]Ace Header ClubSport 400 In-car Test - YouTube[/ame]

but not a fan of the loud sound here (Ace front pipe): [ame="https://www.youtube.com/watch?v=LGxhLPWOBhs"]ACE Header ClubSport 400 Drive-by 11's - YouTube[/ame]

I'm ready to go back to my stock exhaust (have a Perrin 2.5" resonated now) if it's too loud . But from what i hear, the best sound suppression is all stock parts. I think someone tried some dual resonated front pipes and it didn't help much with reducing noise.

[Dr. BRZ]

Originally Posted by tracerit

Checking out headers again now that I've gotten Subaru to fix my leaking timing cover.

I'm looking for the quietest header. Would it be a catted UEL or an ACE CS400 (uncatted of course)? I'm not sure how much noise is suppressed by a cat.

I looove this sound here (stock EVERYTHING):

but not a fan of the loud sound here (Ace front pipe):

I'm ready to go back to my stock exhaust (have a Perrin 2.5" resonated now) if it's too loud . But from what i hear, the best sound suppression is all stock parts. I think someone tried some dual resonated front pipes and it didn't help much with reducing noise.

bro, be smart. you want a quiet header, what makes you think a catless would be a good choice for that, huh? any aftermarket catless header is going to be loud. you want quiet, pick a CATTED header. simple as that.

[Calum]

Originally Posted by Dr. BRZ

bro, be smart. you want a quiet header, what makes you think a catless would be a good choice for that, huh? any aftermarket catless header is going to be loud. you want quiet, pick a CATTED header. simple as that.

Honestly, my CS400 and otherwise stock exhaust is pretty quiet. Start up is a little loud, but after that, you can barely tell from the inside of the car.

[tracerit]

Originally Posted by Dr. BRZ

bro, be smart. you want a quiet header, what makes you think a catless would be a good choice for that, huh? any aftermarket catless header is going to be loud. you want quiet, pick a CATTED header. simple as that.

that's why i mentioned i'm not sure how much noise is suppressed with a cat. also which is the quietest of the two. obviously none are quieter than stock. I'm asking for a comparison of uncatted EL to catted UEL as well.

[Reamer]

Originally Posted by tracerit

that's why i mentioned i'm not sure how much noise is suppressed with a cat. also which is the quietest of the two. obviously none are quieter than stock. I'm asking for a comparison of uncatted EL to catted UEL as well.

If you want a quiet exhaust but still sound good, from what I've read a good combo would be a catted header + JDL ultra quiet front pipe + invidia q300. This will reduce the restrictions with stock but be quiet and still have a good tone. I currently have the ACE B350 with a JDL ultra quiet front pipe with a stock cat back and while it isn't loud, I hate the sound of the stock exhaust with the front bits being more free flowing. I'm waiting for my Corsa to come in where I expect it to be borderline too loud.

Sent from my HTC 10 using Tapatalk

[weederr33]

I think I need to save up, so come Christmas, I can get one of these headers to compliment my Cosworth supercharger.

[Lantana frs]

Catted header with an otherwise stock exhaust will be nice and quiet. An uncatted header with stock front pipe back will be reasonably quiet with a stinkier smell from the tail pipe. There are so many combinations of exhaust pieces to go with but I would copy someone else's setup if I liked the sound rather than roll my own, so to speak, to avoid regrets.

[Ginosaur]

Did any of you guys have any CS400 issues with a rattling sound near the engine? I seem to get it at 2-3k rpm and it sounds like tin.

[Tart]

Originally Posted by Reamer

If you want a quiet exhaust but still sound good, from what I've read a good combo would be a catted header + JDL ultra quiet front pipe + invidia q300. This will reduce the restrictions with stock but be quiet and still have a good tone. I currently have the ACE B350 with a JDL ultra quiet front pipe with a stock cat back and while it isn't loud, I hate the sound of the stock exhaust with the front bits being more free flowing. I'm waiting for my Corsa to come in where I expect it to be borderline too loud.

Sent from my HTC 10 using Tapatalk

I'm interested to know how loud your set up will be with the Corsa. I'm considering something similar, if you can please update once you have it installed!

Sent from my Nexus 6P using Tapatalk

[Reamer]

Originally Posted by Tart

I'm interested to know how loud your set up will be with the Corsa. I'm considering something similar, if you can please update once you have it installed!

Sent from my Nexus 6P using Tapatalk

Sure thing, I'll get some video of it and post up when I do. I think it'll be delivered around October 4th so hopefully it won't be too much longer after that when it is installed and recorded.

Sent from my HTC 10 using Tapatalk

[CounterSpace Garage]

Originally Posted by weederr33

I think I need to save up, so come Christmas, I can get one of these headers to compliment my Cosworth supercharger.

Let us know your goals and we're sure we can help you out with your decision.

Originally Posted by Ginosaur

Did any of you guys have any CS400 issues with a rattling sound near the engine? I seem to get it at 2-3k rpm and it sounds like tin.

Check your skid plate.

Originally Posted by Lantana frs

Catted header with an otherwise stock exhaust will be nice and quiet. An uncatted header with stock front pipe back will be reasonably quiet with a stinkier smell from the tail pipe. There are so many combinations of exhaust pieces to go with but I would copy someone else's setup if I liked the sound rather than roll my own, so to speak, to avoid regrets.

People going with the ACE are looking for the best powerband available and are not worried about smell or sound production. If you have questions on what may work well for your vehicle, send us a PM and we can help you out.