3.5 inch dump pipe with gasket-less 2 piece design for easy fitment

When looking at what others in the market were making we found that many of them did not suit the RHD market and that they would either touch or be too close to the steering rack/shaft. This would cause all sorts of damage to the rubbers and seals.
Our 3.5" dump for the Evo 4-9 have always done very well and thought we would try and improve upon what was available for the Evo 10. We asked mechanics and technicians what they did and didn’t like about what was currently offered by others and then set out to design a solution that was better in performance as well as easier to fit.

If you look at the pics, we created our own ob-round shape to correctly clear the steering whilst also allowing the flow area of a 4" pipe. We also wanted to make it a 2 piece design to make it very easy to fit. So to seal the lower section to the upper we designed a dual stepped recess with the internal step protruding further down following the gas flow. This allowed us to run no gasket and not worry about leaks. We also designed it to run studs in the lower half to make it very easy to fit and not have to juggle nuts and bolts with one hand.

We also did away with the “really hard bolt to get” to because of the dump coming over the top of it, so we created a sealed internal channel for a 115mm bolt to replace it and enter from outside of the dump. We also added the provision to run the OEM heat shield when running the OEM Turbo manifold or our replacement manifold. You can see 2 sets of mounting locations on the dump. We also added an 02 sensor mount. We put this in a location that can be accessed from the engine bay for dyno tuning or for an added wideband for a gauge or dash.

We have designed it do you can run 4" from the dump for the guys wanting maximum power with a stock frame turbo, but we will be offering them as a bolt on version with a 2 bolt flange, as well as a 3.5" version that will bolt up to the oem Cat back location.

Evolution Racing Spares aims to have fast turnaround time for processing and handling orders, and will always make every effort to get the order to you as soon as possible.

Small items: 1-3 Days via Express Post Satchel
Medium Sized Items: 2-3 working days via AusPost Express or Courier (Depending on location)

Large Items: 2-8 working days (Large items can only be sent via courier, and delivery time depends on both courier and location

- Delivery to rural or remote areas, NT, WA, and TAS may take longer.

- Express Post shipping is only valid to areas that fall within the express post zone and is not guaranteed.

- Evolution Racing Spares may use the quickest carrier/method for delivery regardless of the method chosen at checkout.

- Typical handling time for items that are in stock is approximately 24-48 hours, with delays during holiday periods and public holidays.

- Evolution Racing Spares is not responsible for lost or damaged orders when customers change the delivery instructions to "authority to leave."

All goods sold and work performed by Evolution Racing Spares come with a 3-month warranty with no questions asked.

In accordance with the Australian Consumer Law, we are not required to provide a refund or replacement if you change your mind.

You can choose a refund or exchange if an item has a major problem, including:

• A problem that would have stopped you from buying the item if you had known about it
• The item is unsafe
• The item is significantly different from the sample or description
• The item doesn't do what we said it would, or what you asked for and can't be easily fixed

Alternatively, you can choose to keep the item and we will compensate you for any drop in value.

• If the problem is not major, we will repair the item within a reasonable time.
• If the item is not repaired in a reasonable time, you can choose a refund or replacement.

Please keep your proof of purchase such as your receipt.