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Wagner Tuning Monolith 300CPSI EU6 Ø150×165
RRP. £649.00£599.00SAVE £50.00 (8%)
Wagner Tuning Monolith 300CPSI EU6 Catalyst – Ø150x165mm
The Wagner Tuning Monolith 300CPSI EU6 is a high-flow universal catalyst module designed to be welded into a custom or modified exhaust system. With a 150mm outer diameter and 165mm length, it suits larger-bore exhaust builds where reducing backpressure is a priority without removing emissions control altogether.
Compared to a standard OEM catalyst, the lower 300 cells per square inch (CPSI) count allows exhaust gases to flow more freely. This helps the engine breathe better, which can support modest power gains and improved throttle response, particularly on tuned or turbocharged engines where exhaust flow is a known restriction.
Key Features
- High-quality EURO 6 catalytic coating for effective emissions conversion
- Lower 300 CPSI cell density for reduced exhaust backpressure
- Universal weld-in design for custom exhaust fabrication
- Suitable for petrol applications in performance and motorsport builds
- Robust stainless construction built to withstand high exhaust gas temperatures
Specifications
| Outer Diameter | 150mm |
|---|---|
| Length | 165mm |
| Cell Density | 300 CPSI |
| Coating Standard | EURO 6 |
| Installation | Weld-in |
What is CPSI?
CPSI stands for “cells per square inch” and refers to how densely packed the channels inside the catalyst are. A lower CPSI (such as 300) means fewer, larger channels, which lets exhaust gases pass through with less resistance. This reduces backpressure and helps free up power, while the EURO 6 coating still works to convert harmful emissions.
Fitment
This is a universal weld-in component intended for custom exhaust fabrication. It is suitable for a wide range of performance applications where a 150mm body diameter is appropriate. Please refer to the Vehicle Fitment tab or use the site’s vehicle lookup tool to confirm suitability for your build.
Important: This part is intended exclusively for motorsport vehicles used outside of public road regulations (StVZO). By purchasing, you confirm that this catalyst will not be fitted to a vehicle used on public roads.
Additional Information
| Brand |
|---|
005001041-002 Confirmed Fitment
Our team haven't provided any fitment data for this product yet, please get in touch or check back later!
Stock at Progressive Parts
Delivery timescales are given as estimates in good faith, but cannot be taken as precise or exact information. We highly advise against booking installation/workshop time or engaging in preparatory work until you've received and inspected the goods.
What do our stock statuses mean?
1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).
LOW STOCK in green means we're running low! 1 or 2 left on the shelf so act fast. Over evenings, weekends and bank holidays this stock can move quickly so please bear this in mind.
0 IN STOCK in blue means our primary warehouse does not have unallocated stock, but our UK partners do. Often these can be shipped quickly and efficiently. You'll be notified via the Track My Order page if further delays are unavoidable.
MADE TO ORDER in blue means we've partnered with a supplier which primarily makes their products to order. It's not on our shelf, but your order goes into production immediately.
0 IN STOCK in orange means everybody we work with is unfortunately out of stock. Stock is not available in the UK. The best course of action is to place an order to create an allocation from the next batch arriving.
OUT OF STOCK in red. This product is unavailable to order, for whatever reason we're unable to obtain stock or there is an issue with supply/lead times.
We're tuners too!
Our staff are car enthusiasts, we understand the need for speed... This includes getting your orders out the door as quickly and securely as possible!
In some instances, extended lead times are unavoidable. This is as labour-intensive and frustrating for us as it is for you, please know we are doing our best to facilitate your modification goals. Abuse of our staff or systems will not be tolerated.
Thank you, Team PP
In the words of the Vehicle Standards Agency (VCA), type approval provides "confirmation that production and samples of a design will meet specified performance standards".
For emissions components this encompasses noise, emissions and balanced back pressure, which have a strong influence on maintaining engine performance (power), and fuel efficiency. Type approval ensures that an aftermarket component will reach, or exceed the performance standard of the corresponding OE part.
Type-approval then, is a certain guarantee that an end user will receive a product of OE equivalent performance attributes.
Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.