Modifying a stock muffler

[trd_st184]

Hey all,
I've got a new motor and exhaust going in my car in about 3-4 months so I didn't really want to spend any money on the current engine/exhaust system.

I have a little AE92 4afc corolla and want a bit of a note when driving.

I was wondering if anyone had some good ideas to make it a bit more straight through?

I was thinking of peeling the top part of the muffler open, cutting out some of the baffles and then closing it up but I can't weld.

The other option was to use a hole saw into the tail pipe hole and make some of the baffles straight through. Only issue is having metal shards in the exhaust (not sure if the engine had the ability to suck them up or whether the exhaust would eventually blow any bits out with a good rev.

[horse]

if you can't weld then just leave it as is and wait for the new system in 3-4 months. don't waste time and money for pretty much a pointless exercise

[trd_st184]

if you can't weld then just leave it as is and wait for the new system in 3-4 months. don't waste time and money for pretty much a pointless exercise

I'm just not used to having a quiet as car for the whole of summer, especially that I spent all of summer without a car last year when my transmission went. This summer I want to be out as much as possible in my own car. It'd just be nice to have a bit more of a note till I build up all the bits I need for the 4age conversion. I'm sure a few drilled holes through the centre could make it a bit louder

EDIT: Maybe its a good opportunity that I can learn to weld maybe?

[SmokinSquirrel]

I'm sure a few drilled holes through the centre could make it a bit louder

EDIT: Maybe its a good opportunity that I can learn to weld maybe?

Its a waste of effort if you ask me, but If you want it loud now, cut the rear muffler off, find a pipe to sleeve over the existing exhaust (if you have a mate with a wreck, hit them up for some old exhaust tube), then weld that on.
I cut a muffler open in my younger foolish days and it made not much difference.

[trd_st184]

Oh neat thanks for the info.

I think I might just get a cat back system done with a decent muffler. I will be getting the front exhaust section done later down the track anyway.

[Hen]

Drill some calibrated holes in the exhaust pipe just before your muffler. Keep adding holes until you get to the optimum volume where the ladies will come running in their bikinis (you did say summer after all).

And total cost is $0.

[trd_st184]

Drill some calibrated holes in the exhaust pipe just before your muffler. Keep adding holes until you get to the optimum volume where the ladies will come running in their bikinis (you did say summer after all).

And total cost is $0.

Hahaha great idea. The only issue I would have would be the fumes seeping into the car lol.

[maj]

I think people need to remember that exhaust noise is a by-product of power, not the other way around.

I'll gladly show you my stock exhaust that's nice and quiet and isn't the limiting factor in my daily producing 150kW at all four.

[litldv8]

Hahaha great idea. The only issue I would have would be the fumes seeping into the car lol.

drill the holes on the bottom side

[king-szeitszam]

You'll want to be careful with this, given the new legislation.

http://www.police.qld.gov.au/Resourc...L_Brochure.pdf

A loud exhaust is a great way to make a traffic officer's job very easy, for absolutely zero practical gain.
My advice would be to enjoy your 3-4 months of not being a cop-magnet and wait to get a proper exhaust done on your new ride.

[trd_st184]

You'll want to be careful with this, given the new legislation.

http://www.police.qld.gov.au/Resourc...L_Brochure.pdf

A loud exhaust is a great way to make a traffic officer's job very easy, for absolutely zero practical gain.
My advice would be to enjoy your 3-4 months of not being a cop-magnet and wait to get a proper exhaust done on your new ride.

Interesting article. Good to see they are concentrating on the most important things.

Edit: Found that the Type 1 offenses are related to Speed Racing (not just accelerating to overtake etc).

Thanks for the comments, I might just hold off till I get the new motor in.