Kustom Bitz has secured another well made Aussie product to support in the form of the Performance Weaponry stainless steel exhaust components, V-band clamps, merged collectors, ultra high flow catalytic converters for race cars and turbos, transition pieces, flanges, gaskets and mandrel bends. 

 Check out their official web site click on the logo above

 Merged collector above with welded  on transition tube

It has been no secret that merged collectors increase horsepower and torque, in particular when used with extractors on normally aspirated engines (up to 10% increase over pressed collectors in not an uncommon result), and a very noticeable increase when used on turbo charger manifolds, the turbo spools up much quicker, noticeably reducing lag and bringing the torque in earlier on in the rev range

Performance Weaponry’s merged collectors have been thoroughly designed and tested to ensure that they will achieve the best results from your engine. They have been expanded on the end to slip over extractor tubes and are constructed from 304 stainless steel with fully purged tig welds. Available with or without reverse cone ends, Fitting is easy if your existing extractors finish (as most do) grouped in a square fashion with a collector cone welded on it is simply a matter of cutting off the pressed collector and sliding the merged collector over the tubes. Securing the collector by either welding or attaching a mount bracket to make removal easy if you require.

Perfect fit for Pacemaker 1 and 3/4 inch four into one headers, just cut the collector part out and slip our merged collector on and feel the horsepower increase.

Ultra high flow race cat - metalic catalytic converter below with a 304 stainless steel case.

 Metallic converters are superior to the conventional ceramic based converters, as they can withstand knocks and general abuse to the outer case, they have the ability to handle a hotter exhaust temperature, in most cases they flow as well as a straight thru pipe, we have actually had these converters run at the Nurburg ring 2008 24hr on a V8 powered car coming in 30th outright (first of the privateers home) with no problems, gear changes occurred in exactly the same place as the same car with no cats in the system. The converters flowed so well that they did not effect the vehicles performance in any way, all the time during the race the system glowed red hot, and this vehicle passed scrutineering for emissions control and noise. (It can’t get better than that).

More Performance exhaust products and make you own header kits will be up on our web site over the next few weeks.

Currently we are inundated with getting new products lines developed so I have not had time to get all sizes and prices up on our web site, so please phone us or email ron@kustombitz.com.au with your needs and I will respond promptly to help you out.

Performance exhaust current price list download now