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Custom fabricated performance exhaust systems
CUSTOM EXHAUST SPORTS EXHAUST SYSTEM
 
 
Stainless steel sports exhaust systems using Kustom Bitz exhaust products custom fitted to your chassis or car. Here are some examples or our work, we pride ourselves on using properly constructed exhaust hangers that won't break, twist and rattle.  Kustom Bitz keeps the exhaust up tight and close to the chassis and floor pan to maximise ground clearance. We mainly work on the older cars that need a tailored well thought out exhaust and where the customer wants a quality job and not something that is just slapped together. All joints are tig welded fused together or when needed we use stainless steel filler rod so that no part of your exhaust system can rust.
 

 

 

 

 
Kustom Bitz has two options to construct your exhaust system.
  1. If cost is more important to you we can use our bend pack exhaust tube bender to construct the exhaust system, as it saves us much time in labour by reducing the welds required and allowing us to customise the bends and length of tail pipe as we go. This is the same sort of bender that regular exhaust shops use with the difference being our attention to detail to get it right and not just get it done. The only draw back with the exhaust pipe bender is that it does leave a lot of tool marks in the pipe and some ripples and creases which is not as good looking and no good for polishing however this is a perfect solution for streeters that are driven alot and where the owners are not that worried about little imperfections in the exhaust pipe under the car that you cannot see.
  2. For those fussy fellas that want a show quality exhaust system we use polished stainless steel mandrel bends and we can dress the welds and polish the whole exhaust system in our workshop as we build it and fit it to the car.  These systems look great but they are labour intesive so be prepared if that is what you want.
 

 
 
Here is an example of the exhaust hanger brackets Kustom Bitz designed and uses on all our exhaust systems, click on the pics to see larger. If we dont have a suitable bracket to hold up your exhaust properly we will design one.  We use a common available Holden Commodore mounting rubber and a range of different laser cut brackets we developed to secure the exhaust and stop it from twisting over and prevent rattles but still allowing some movement.
 

 
We have designed the brackets to be weld on so they are mild steel on the chassis side and stainless steel on the exhaust tube side.  Of course they can be drilled and bent to make them bolt on. All these pictures show weld on as the chassis were at the construction stage before paint.
 

 
2.5 inch exhaust tube held from the side above and held from the top below.
The chassis side brackets are just cut and trimmed to suit.
 

 

 
The picture below is of our side hanger exhaust brackets for our T bucket side pipes and are shaped to allow you to weld them directly to the outer case of a 4 inch round hot dog muffler.
 

Custom made performance exhaust systems

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Custom Header heat Shields - Custom fitted so it doesn't look like sheilds
All custom made headers are at an hourly rate, we need your car/chassis and engine in our workshop. prices start from approx.
$950.00
Custom Headers - Custom made extractors in polished stainless steel
All custom made headers are at an hourly rate, we need your car/chassis and engine in our workshop. prices start from approx.
$3,300.00
Custom Performance Exhaust ~ 2 1/2 inch Stainless Steel Exhaust System with mufflers and resonators - custom fitted
All exhaust systems are done at an hourly rate, we need your car/chassis and engine in our workshop. Prices start from approx.
$2,200.00
Exhaust hanger - Top Drop - Top pipe attach - 4 Bolt design - for 2 1/2
Exhaust hanger bracket kit includes 4 plates, a rubber and 4 bolts
$65.00
Exhaust hanger - Side Drop - Top pipe attach - 4 Bolt design - for 2 1/2
Exhaust hanger bracket kit includes 4 plates, a rubber and 4 bolts
$65.00
Exhaust hanger - Side Drop - Side pipe attach - 4 Bolt design - for 2 1/2
Exhaust hanger bracket kit includes 4 plates, a rubber and 4 bolts
$65.00
Exhaust hanger - Side Drop - Side pipe attach - 4 Bolt design - for 4
Exhaust hanger bracket kit includes 4 plates, a rubber and 4 bolts
$65.00


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    Kustom Bitz news

    LS Engine swap and custom air bag IFS

    by kustombitz on 19 Feb 2020
    '67 Toyota Crown ute chassis build is going well. Got the LS engine and 6 speed manual box in place and we can use all the orginal serpentine pulleys, brackets etc. The narrow wheel track on the Toyota called for a tailored solution when it came to the front end.  These old Toyotas dont have service parts available any more so the front end had to be changed, so that made a brake upgrade alot easier too. We run R6 air bags from Air Ride sitting at a ride height of 6" for the air bag so got plenty of air volume in them for a good ride quality and a full length travel shock absorber so we get proper rebound tuning, along with a power steering rack.  So at the sill [belly of the car] we get a 5" ride hieght with a 4 inch drop, this thing will look great.

    Double shear brackets - rear coil overs Hot Rod Chassis

    by kustombitz on 30 May 2019
    Recently in Victoria some engineers have called for the upper and lower mounts for the rear coil over shockers to be a double shear bracket.  The thoery is that the bolt has too much twisting force on it and it will break. Well thats why on Hot Rods we use a 5/8" grade 8 bolt in a single shear bracket application to over engineer it so it does not break. A typical OEM application uses a 1/2" bolt in a double shear bracket. However to please the engineer we have thought out a simple plate kit that can be welded in on the upper mounts as you see here to satisfy their requirements and should fit into most applications without too much effort or rework.  We have a lower mount bracket nutted out as well.

    Diff bump stops custom made

    by kustombitz on 08 Mar 2019
    So many hot rod shops don't install proper bump stops.  In this instance we had to rebuild the shocker mounts on the diff as the rear end was bottoming out on the shocker travel becasue it had no properly designed bump stops in place. So the shock absorber mounting bracket was absorbing every bump when the suspension bottomed out, easy to see why both mounts broke. While we were repairing the diff I made a simple yet effective progressive bump stop that is held in place via the U bolts that hold the diff to the leaf springs. It turned out a very successful set up. This is yet another example how Kustom Bitz can sort out problems on your custom car or hot rod, its what we do.

    Torana A9X custom made rear pan hard bar 9" Diff

    by kustombitz on 08 Mar 2019
    Back in the day Group C racing one of the tricks to get the Holden Torana to handle nice and be more predictable in corners was to fit a rear pan hard bar to give much better diff locating than the OEM triangulated 4 bars offered.  However the body, subframe and floor pan at the rear is no where near strong enoungh to concentrate the loads of pan hard bar in any one spot, so it has to be carefully planned and constructed, especially so in a street car like this that we cannot put a full roll cage in. You see in a race car I can place the roll cage in a position to pick up such loads placed on the pan hard bar brackets, but in this situaton we couldn't. The picture above is with the unit installed, keep in mind the car was just a shell so no weight was in it and the rear is sitting high. Once the full wieght of the car is on, it will sit fairly level.  It retains the original triangulated 4 bars however we run PU bushes in the bottom arms and ordinary rubber in the top arms. So the lower arms and pan hard bar do the locating and the top arms have some give so they don't bind with the pan hard bar.

    Hot Rod 38 Plymouth custom panel fabrication

    by kustombitz on 04 Dec 2018
    We have put a lot of time and effort into this 38 Plymouth.  The whole rear lower panel and floor right through to under the seat has been completely hand fabricated and replaced.  The front and rear mud guards have been widened and the shape reworked for cleaner lines, the guard edge now follows the wheel's shape and shall feature a straight edge running board.to clean up those ugly Plymouth bits but still retain some typically Plymouth features like the swage lines. We have basically just fattened it up and made it more curvey.

    Our first wheels up Launch in Vintage Gas drag racing

    by kustombitz on 27 Aug 2018
    First pass for the day in Q1 in Vintage Gas [V/Gas] and we did our first wheels up launch in "Angas" and later in the day ran our best time so far with this combo with an 8.80s for the 1/8th mile track with an ET of 79mph.  The venue was Sunset Dragway which is just outside Mildura in country VIC. It was a 20deg sunny spring day with little wind, an all but perfect day for this time of year.  Great facilities at this venue for grass roots racers like us and they really looked after all of us racers, so its well worth the trip we had a blast. As far as our little 105e Anglia Gasser goes there is still heaps in it yet when a few tech issues get sorted out, but totally stoked at the moment. woo whooo .....

    Custom made fuel tanks

    by kustombitz on 14 Aug 2018
    Kustom Bitz has made a number of fuel tanks in mild steel and then we line them with KBS Coatings fuel tank liner which seals the inside off from rusting.  The beauty of mild steel is we can design it in such a way that it does not need strapps becasue it doesn't fatigue in a way like alloy or stainless steel with similar brackets.  It does not have to be perfectly square either, most of the tanks we have made are odd shapes to maximise the available space to gain maximum fuel capacity. The other advantage of mild steel is that in an accident it is less likely to split, even along the welds becuse we hand make them from cold rolled steel which will deform long before it splits and cracks. A custom tank is time consuming to do so if you can fit a cheap mass produced tank in your car then go for it, however if a technical outcome is what you are after then we can assist.

    Swan Hill Dragway in country VIC

    by kustombitz on 01 Jun 2018
    Nostalgia drags were on last weekend at the newly constructed Swan Hill Dragway. The first big meeting had an enourmous turn out of cars, there was some serious race cars there representing all classes. What a venue this track is going to be as they complete the supporting facilites.  Australian Nostalgia Racers put on the event in conjustion with the local Swan Hill Drag club members and it was a credit to all who were involved, I can tell you it is well worth the drive up there ..... just go. We had our Shop drag car that runs in Vintage Gas class, of which we have named ANGAS which is short [obviously] for Anglia Gasser.  This is our test bed for experience in racing and tuning AussieSpeed Performance Parts  We run a 250 6 cyl Ford Crossflow engine with an AussieSpeed AS0216 4brl intake and a double pumper carby, big hyd cam, high comp pushing down through a 4 speed stick to a Hilux diff.  First time out for the new combo and still alot of sorting to do, so the times were down but the fun level was up and over the top. You can view the build of the car here facebook@angliagasser 

    34 Ford Hot Rod Chassis with Winters Quickchange rear end

    by kustombitz on 27 Mar 2018
    We set up this winters quickchange rear end in a 34 Ford chassis on a set of our hair pin radius rods and coil over shocks.  This 34 Ford will be a hiBoy style hot rod so we bobbed the rear of the chassis and finished it off nicely so all the rear end will be on show, very nice .........

    AussieSpeed performance parts range at Ballarat swap meet

    by kustombitz on 27 Mar 2018
    Well another year done at Ballarat Swap Meet, tough year weather wise this year was certainly trying for us all. Thanks to all those who dropped by our site we really enjoy the feedback on our product range what ever your experiences have been, it is much appreciated.  There is so much on the go at the moment both with the AussieSpeed performance products range, our Kustom Bitz Hot Rod Parts and on going projects in our workshop keeps me running on empty .........

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