Greddy rs or mxp comp rs
 

Getting a catback soon. Either a greddy rs (single exit) or a mxp comp rs to go with my borla uel header. I've never heard either of these exhaust in person. Which sounds better? I'm going for a WRX type rumble.

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Either of those exhaust systems will give you the sound you're looking for. The main thing is having an UEL header.

Don't forget that the RS is a 3" exhaust system, the MXP exhaust isn't. I would imagine the RS will be louder and drone far worse. On that note, I'd still go with the RS because of weight savings, simplicity, and I love single exit :)

You're going to get the growl / rumble from the UEL headers. I have completely stock catback with UEL headers and mine has it so no matter what you pick, you'll be fine.

Greddy RS

I have the Greddy RS and it drones really badly. Had to weld in one of these to reduce the drone. https://www.carchemistry.com/3-disk-insert-3-diameter/

UEL will give you boxer rumble more than catback. FYI Greddy is known for raspy. Some ppl put resonator to reduce the raspy sound and drone.

Why not a tomei 60s?

It cost a little bit more then I'd like to spend

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Greddy RS will be insanely loud with the uel.

MXP comp will be more suited to your setup.

Ideally if you're aiming to be tuned in the future, you'd want 2.5" piping at least. Whereas the Tomei is 2.3" or so.

Exhaust piping that far back, gains a minimal, won’t even notice a difference, especially being n/a. I’m boosted with oem midpipe and it’s perfectly fine.

If other single exits are in the running I'd recommend the Tanabe Concept G. It's loud, but only outside the cabin. 0 drone but with a clear sound. My car is fully catless and I daily it with this exhaust. My commute until i recently moved closer to work was about 30 minutes on the highway at 3500 rpm.

No rasp with my RS. Rest of exhaust is stock, however.

All of ones that I’ve heard had header &/or front pipe mods w their RS and have been pretty raspy. Maybe front pipe is keeping the rasp away. :iono:

Combination of cats + stock resonator possibly?