I replaced mine with a Nissens and it’s been working great for over a year. The way the drain plug felt when I installed it was a bit concerning though.
Pretty sure oem is mahle but nissens are good for sure
Nissens rads are very good tbh, better than OEM,
the Koyo certainly looks much better. You won't notice any difference in cooling between the two.
I'd go with Koyo for price and ease of install. My reservoir hose nipple broke on my OEM radiator (OEM has plastic tanks) so I went with all aluminum for durability. My RX-8 also only drives on race tracks, so the extra cooling is nice.
I'd replace it with a fully aluminum one just because of that pesky plastic nipple that's prone to breaking. Koyo makes a good one.
I’ve had really good luck with Koyo radiators in the past as a really good replacement. The couple all aluminum radiators I’ve had, I really wasn’t impressed with the quality of construction.
I went Koyo. For me even with a stock engine its worth it not to have a plastic seam to worry about.
I imagine, if done right it could be stronger than original. But unless it's a really good radiator, I'd replace it with one of those $70 nissens.
The problem I'm running in to is that the upper hose connection is positioned differently on the Koyo N-Flow/dual pass(RH020539N) and it's really close to the Q45 throttle body and attached TPS. I've already cut off the unused socket on the TPS which gives me more room but still not a ton to work with.
Write your review
Help others - share your experience with this part.
Engine radiator MISHIMOTO or Koyo
Engine radiator MISHIMOTO or Nissens
Engine radiator MISHIMOTO or KOYORAD
Engine radiator MISHIMOTO or Denso
Engine radiator MISHIMOTO or OEM Volkswagen
Engine radiator MISHIMOTO or OEM BMW
Engine radiator VALEO or MISHIMOTO
Engine radiator MISHIMOTO or OEM Toyota
Show allVoted AGAINST engine oil RAVENOL on the rating page
The brake pads OEM Alfa Romeo got the first review!
The brake caliper OEM BMW got the first review!
The brake pads OEM Infiniti got the first review!
For wiper blades PIAA already 100 reviews.
For battery Energizer already 25 reviews.
In the rating best water pump already 12 brands participate!
In the rating best timing belt already 13 brands participate!
In the rating best head gasket already 3 brands participate!
In the auto rating oil filter for Volkswagen Passat already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating tires for Subaru Outback already 50 brands participate!
For cabin filter Fram already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
