Stainless Steel Race Cat & Midpipe MX5 Mk3/3.5/3.75 Reviews

4.7 Rating 3 Reviews

Great quality, highly polished stainless steel 200 cell race catalytic convertor and midpipe with silencer made by IL Motorsport. Designed as a direct replacement for the original, this can be fitted with either the original or stainless manifolds, and the standard, BBK or our stainless rear boxes. Features 60mm diameter pipework, and comes supplied with a 30mm wide clamp to join the two sections together, centre pipe to rear box gasket, and nuts to join the rear box.Fits all Mk3, 3.5 & 3.75 Facelift models, 2005>2015Please Note: This is sold as a race cat for off road use only and is supplied without TUV certification.

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Phone:

02392 644588

Email:

sales@mx5parts.co.uk

Location:

1 Orion Court, 5 Rodney Road,,
Portsmouth
PO4 8SZ

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Archie Henderson

Verified Reviewer

“I have just completed fitting this artwork in SS along with the 4-1 Headers also artwork. Being very critical the mid pipe is supplied with 3 holes 2 for the O2 sensors and 1 for an EGT. There is no mention of this EGT that I recall in the sales info. The knock on effect is that I can't now run my car until I have acquired the necessary bung to close the hole. I could off course weld it closed. However, that would defeat the purpose of it being there in the first place! Nor do MX5 Parts sell the relevant bung. That small oversight on my part and on MX5 Parts detracts from 5 Stars. I look forward to completing the build and hearing the music and well as feeling the difference in performance.”

1 Helpful Report

Posted 4 years ago

David Connell

Verified Reviewer

“Updated version has an O2 boss welded before and after the cat now, as well as a boss for EGT sensor - though IL motorsports extension harness isn't long enough to reach the post-cat boss. When combined with the 4-1 manifold, it gives no fewer than 4 O2 bosses! Handy if you want to install a wideband or a tuner wants to temporarily install theirs during mapping.”

Helpful Report

Posted 5 years ago

“A nice piece of stainless steel engineering. It fitted well between an IL Motorsports 4-into-1 manifold and a standard backbox. The centre clamp, however, was too big. Even when fully tightened it didn't grip the pipe join, so we ended up having to weld the 2 halves of the midpipe together. There is no O2 sensor boss after the cat, which is a pain (I'd rather have the second O2 sensor boss than the EGT boss before the cat). Note that the O2 sensor boss that comes with the manifold sensor extension kit isn't made from the same steel as the midpipe, so welding it in will create a corrosion source. The front of the resonator is only 2 or 3mm away from the IL Motorsports chassis brace that I have fitted. They don't seem to be making contact, but I'd have preferred a bit more clearance given that IL Motorsports made both items. When fitted with the 4-into-1 manifold the increase in power and torque (after a remap by Skuzzle Motorsports) was significant, but the increase in noise was minimal, which is just what I wanted. I have yet to see if the car will get through the MOT emissions test with just the sports cat.”

Helpful Report

Posted 10 years ago