[Dascal101]

hey gang, i turn to the people who will be able to answer me best. I want to make my exhaust louder and deeper. I have a straight through muffler and thats it. I was thinking about removing the resonator. And also can anybody answer what resonator deletes and exhaust deletes are. Can anyone suggest what i should get done? I have a 93 nova

[ae92rolla91]

the best way to make it louder is to install a 2inch press bent catback system onto your car
i have done this to my 94 rolla and although it is just over legal volume it sounds great

[Dascal101]

do you know roughly how much that would be? Would i have to get headers as well or would it be pointless to get a 2 inch upgrade and not them?

[Twincam Corolla]

Dascal101, on 24 November 2010 - 11:54 PM, said:

do you know roughly how much that would be? Would i have to get headers as well or would it be pointless to get a 2 inch upgrade and not them?

Yes, it's pointless to upgrade your exhaust system without upgrading to a header. The factory exhaust manifold would be the weak link in the chain. Same goes for the factory catalytic converter. You can get the header cheap off eBay US and you can also buy a high flow cat. As for the exhaust piping, don't go any bigger than 2.25" and try to get mandrel bent piping if possible. At the end of the day it depends on if you want an obnoxiously loud exhaust system, or something stealthy which also provides extra power. I spent a lot of time on my exhaust system, mainly experimenting with different length resonators to get the correct tone/noise level I was after, but in the end I finally got it right.

This is what it sounds like (two previous videos with different resonators installed are also available by clicking my YouTube channel) -

[choicesx]

Lol about the header being the weak link in the chain....

Unless you are making serious powah, then factory headers are fine.

[ae92rolla91]

i guess it goes to how much power your looking at

[Stewbie]

good aftermarket headers add a max of 3kw... that works out at about $125.00 a kw... i guess at the end of the day its a 7A-FE and really not worth the effort in my opinion, but each to his own... i'm happy with a nice note and induction noise from a short ram air intake and pod filter...

[Twincam Corolla]

choicesx, on 26 January 2011 - 06:58 AM, said:

Lol about the header being the weak link in the chain....

Unless you are making serious powah, then factory headers are fine.

Wrong. There is no such thing as a factory header on the 4A-FE and 7A-FE engines. They have a factory exhaust manifold, which is very restrictive. It would be plain idiotic to upgrade the whole exhaust system but neglect fitting a 4-2-1 or 4-1 header. Regardless of the power the car is making, the factory exhaust manifold is always going to be the weak link in the chain. It's the same as upgrading the exhaust system and leaving the stock muffler on the end. Either one of those ways is a waste of time and money....

Stewbie, on 04 March 2011 - 07:20 AM, said:

good aftermarket headers add a max of 3kw... that works out at about $125.00 a kw... i guess at the end of the day its a 7A-FE and really not worth the effort in my opinion, but each to his own... i'm happy with a nice note and induction noise from a short ram air intake and pod filter...

You can get aftermarket headers for much cheaper than $375. The ones on eBay for example are $219 AUD delivered. The actual price of the header and front pipe is only $34 AUD, and the rest is just shipping costs. Don't be fooled by the price, they're actually really good products and flow a hell of a lot better than the factory exhaust manifold. Not only that, but the factory exhaust manifold on the 4A-FE and 7A-FE engines are prone to cracking through the middle over time, so going for an aftermarket header is typically a much more sensible choice, in terms of both reliability and performance. Since you're only after the sound, then you may as well leave things the way they are. However, for someone looking for more performance they'd get rid of the short ram intake straight away and go for a cold air intake and they'd upgrade the entire exhaust system to piping no larger than 2.25 inch.

[Dascal101]

I was looking at these guys

http://cgi.ebay.com....=item2561923190

http://cgi.ebay.com....=item3a63535997

The second is much cheaper and isn't named, will it be that much worse?

Quick responses would be awesome, thanks guys

[Twincam Corolla]

Dascal101, on 07 March 2011 - 09:48 AM, said:

I was looking at these guys

http://cgi.ebay.com....=item2561923190

http://cgi.ebay.com....=item3a63535997

The second is much cheaper and isn't named, will it be that much worse?

Quick responses would be awesome, thanks guys

It's much cheaper to buy a header from the US. Even when you factor in the price of the header, the shipping and the 5% PayPal fee, it works out to be around $100 less than the one on eBay Australia.

I'd recommend going for this one. It will only cost $160 AUD shipped and they're very high quality (you can also get them in chrome if you like) -

http://cgi.ebay.com/...sQ5fAccessories

This post has been edited by Twincam Corolla: 07 March 2011 - 11:07 AM

[Dascal101]

have you used them previously?

[Dascal101]

also, will all that stuff fit on my nova?

[Twincam Corolla]

Dascal101, on 08 March 2011 - 08:28 AM, said:

have you used them previously?

Yes, I've got one on my Corolla. I know dozens and dozens of Corolla owners who also use the exact same header and not one of them has ever had a single problem.

Dascal101, on 08 March 2011 - 08:40 AM, said:

also, will all that stuff fit on my nova?

Yes, it will bolt straight on without any modification necessary. If you have a 4A-FE in your Nova then get the 1.6L header, and if you have a 7A-FE in your Nova then get the 1.8L header. The actual header is exactly the same, but the flexi-pipe is a tad longer on the 7A-FE version since the 7A-FE has a larger oil pan.

Check your current exhaust manifold to see if your oxygen sensor is a 2-bolt flange type or a screw-in type. You'll be able to tell just by looking at it. There are two types available on eBay (exactly the same aside from the oxygen sensor mounting hole). If yours is the 2-bolt type then go for the header I gave you the link to. If it's the screw-in type, then let me know and I'll give you another link.

This post has been edited by Twincam Corolla: 08 March 2011 - 09:17 AM

[Dascal101]

and this exhaust system will be ok?

http://cgi.ebay.com/...sQ5fAccessories

[Twincam Corolla]

Dascal101, on 09 March 2011 - 08:39 AM, said:

and this exhaust system will be ok?

http://cgi.ebay.com/...sQ5fAccessories

Yes, that will fit perfectly. Although 2.5" is a bit too large in my opinion. I wouldn't go for anything bigger than 2.25" on a 4A-FE. For the cost of getting it sent over, it might be cheaper to go to your local exhaust shop and get one made from scratch.

[Dascal101]

the headers will still be worth it but?

[Twincam Corolla]

Dascal101, on 09 March 2011 - 02:18 PM, said:

the headers will still be worth it but?

Yep, definitely worth getting the headers. If you plan on upgrading your whole exhaust system don't forget to get a high-flow catalytic converter.

[bobjane26]

will the wild cat extractors also fit onto the 4age 16v in an ae92 rolla?

also will this cat fit a with the 2 1/4 inch custom cat back exhaust i have installed?
http://www.ebay.com....=item2564092ad4
or
http://www.ebay.com....=item483b35c9c7

This post has been edited by bobjane26: 28 May 2011 - 12:54 PM

[choicesx]

Twincam Corolla, on 04 March 2011 - 08:11 AM, said:

Wrong. There is no such thing as a factory header on the 4A-FE and 7A-FE engines. They have a factory exhaust manifold, which is very restrictive. It would be plain idiotic to upgrade the whole exhaust system but neglect fitting a 4-2-1 or 4-1 header. Regardless of the power the car is making, the factory exhaust manifold is always going to be the weak link in the chain. It's the same as upgrading the exhaust system and leaving the stock muffler on the end. Either one of those ways is a waste of time and money....

hahaha you make me laugh.... Maybe in nz you do things differently , especially with those wollen 4 legged animals...

Seriously, factory headers aren't the weak point in the chain.... Throw a car on the dyno, send it down the 1/4 and unless the motor is modified , higher comp, bigger cams etc. after market headers will make SFA difference.

[Dascal101]

Hey twincam, have got a new link for that eBay header?

[Twincam Corolla]

Dascal101, on 14 August 2011 - 12:14 PM, said:

Hey twincam, have got a new link for that eBay header?

For the 1.6L or 1.8L?

[Dascal101]

Sorry, 1.6 the item ended

Sorry, 1.6 the item ended

[Twincam Corolla]

No problem. Here's a couple for the 1.6L:

http://cgi.ebay.com/...#ht_2816wt_1165

http://cgi.ebay.com/...a#ht_4446wt_939

[Dascal101]

And these fit first gen (88-92) as well? Thanks heaps twin

[Twincam Corolla]

Dascal101, on 14 August 2011 - 01:00 PM, said:

And these fit first gen (88-92) as well? Thanks heaps twin

Yep, the header itself will fit, but you may need to modify the flexi-pipe a bit. This thread is worth a read:

http://www.toyotanat...ad.php?t=255288

[Dascal101]

Update: went to exhaust shops around near me and none do mandrel (closest is about 100k's away). A guy I was talking to was really helpful and said getting about 2.5 to 3" will be almost as effective as a 2.25" mandrel and said that I wouldn't even really notice much of a difference between the two. So as soon as my header arrives I'll be going back to him as he was the only one who didn't seem like a jerk when I asked.

What do you guys recon? Will the 2.5" press be around the same as 2.25" mandrel?

Cheers