Exhaust System upgrade

[Duncan271 Member Find all posts View Profile Close Duncan271]

Breathing a lot easier now..!

My previous pacemaker headers lasted about 5 years, but recently had a catastrophic failure in the parent metal just before the flange on the drivers side.

So, got the new system fitted yesterday, Pacemaker headers once again, with King Brown 2 1/2 stainless pipes.

The cats, just after the headers, were in good condition so they were re-used, saved about $380 each.

One of the photos of the rear end shows the old exhaust tip, copped some battle damage out and about crawling up some rocks..!

[Duncan271 Member Find all posts View Profile Close Duncan271]

Cracked header, drivers side.

[Tonz Member Find all posts View Profile Close Tonz]

what did the system cost you Duncan? I got quoted the other day a system no stainless not pacemakers for around $2500 . on my 90 series 3.4ltr.

[Duncan271 Member Find all posts View Profile Close Duncan271]

Hi Tonz, all up including labour was $2242

it was about $560 in labour

[Tonz Member Find all posts View Profile Close Tonz]

Thanks for the reply Duncan ,i saw online on ebay pacemakers for around $600 , i was wondering if i can save a few dollars , and also buy the muflers/silencers and just buy the tubing and take it in to get the bends done and bolt it on .,.. From your quote parts were $ 1682 . i may experiment and see how i go . youve given me a good start place .I wonder if i can escape with $1000 . its a lot to ask for a grand , but ya never know till ya give it a go....

i see on yours besides the converter ,you have a silencer behind the extractors , and another smaller one at the end . . or is that a muffler sitting there about the middle and a smaller one at the end.
what size are they . are they strait though mufflers or off set ? . Is it very loud now compared to before.?

[Duncan271 Member Find all posts View Profile Close Duncan271]

Hi Tonz, the headers (extractors) go straight into the catalytic converters on each side, they then join together where you see them going 2 into 1, then into the large muffler, then into the small round muffler prior to the end of the exhaust pipe.

[Tonz Member Find all posts View Profile Close Tonz]

oh i see now duncan the muffler is offset and a smaller silencer at the end . how did you go with the sound , did it alter much with all the change . if it is slightly louder than before i may copy yours. by using the offset muffler i would imagine its not toooooo much louder than before.

as its not a v8 and im not 18 anymore i would hate if i turned it into a droney fart on the high way just to be hounded by the miss"s saying things like"" its sounds like a tractor now , why didnt you just by a tractor"" , you know the kind of remarks you get from people that dont appreciate engineering /racing/or boys with toys or just cuz you simply like it .
in reality its me who doesn't want to sound like a drone.

[Duncan271 Member Find all posts View Profile Close Duncan271]

Hi Tonz, it doesn’t drone at all which is great.

This system sounds a lot crisper and cleaner than the previous system, which also wasn’t stock.

The headers do alleviate the ticker - lifter type sound from the stock ones, so that’s also a bonus.

[nkostaki Lurker Find all posts View Profile Close nkostaki]

Hello, apologies for hopping onto your wagon but this apparently is the only post in the 120 series forum that contains the word "catalytic". I wonder if I could ask for your help regarding the location of the (I assume two) catalytic converters on the GRJ120L Prado' on the 1GR-FE? Are they part of the exhaust manifold (iright next to the engine block), or a further back (visible on the underside of the car, protected by semi-cylindrical meta covers)?

I'm trying to find out through Google and eBay but am getting confusing info.

Thanks!

[Duncan271 Member Find all posts View Profile Close Duncan271]

Hello, apologies for hopping onto your wagon but this apparently is the only post in the 120 series forum that contains the word "catalytic". I wonder if I could ask for your help regarding the location of the (I assume two) catalytic converters on the GRJ120L Prado' on the 1GR-FE? Are they part of the exhaust manifold (iright next to the engine block), or a further back (visible on the underside of the car, protected by semi-cylindrical meta covers)?

I'm trying to find out through Google and eBay but am getting confusing info.

Thanks!

Catalytic converters are on each side, directly after headers/extractors.

See attached photo. Blue section is the header, brown section is the exhaust, cat in the middle.