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-   -   RP supercat installed, but its too loud! (https://www.rx8club.com/rx-8-discussion-3/rp-supercat-installed-but-its-too-loud-100775/)

c41250n 10-10-2006 02:52 AM

RP supercat installed, but its too loud!
 
i have had the RP supercat installed, with the Greddy SP2 catback. it is really loud, i was thinking, if i add a resonator on to it, will it be a lot quieter or not?
also, about how much hp does the RP supercat really gain? if i put a resonator, will i lose that power that i gain from the supercat?
any advise?
i am so ready to put my stock mid pipe on already!!

CoupeM 10-10-2006 03:04 AM

I have the RP supercat installed with a reasonator by RP as well. I am using a Knightsports muffler which is actually quite a quiet muffler. I can say that the reasonator does not help very much. At low rpms, is not too loud. At high throttle and high rpms...it is extremely loud.

Flashwing 10-10-2006 04:49 AM

I've been running with the B&B midpipe and I can speak to the loud exhaust. Nobody wants to ride behind me when we do drives. Still, it's an easy 8 or 9 hp to pick up.

foo77 10-10-2006 06:21 AM

CoupeM so you got the RP installed huh :ylsuper: how do you like it mate? mine still stock,but a lil bit custom ;) just can't imagine how loud the RP goes,coz i can't stand how my cat sound :lol2: but hey..i like to hear music as well,so no prob with it :D:

Trekk 10-10-2006 07:47 AM

They aren't suppose to make you lose any HP but even if they do it couldn't be more then 2-3hp.

c41250n 10-10-2006 12:48 PM

have anyone got pulled over because the car is too loud?

XDEEDUBBX 10-10-2006 12:50 PM

it actually sounds great with a RB exhaust. The RB exhaust is naturally quiet so it livens things up. But i can imagine how loud it can be on your car..probably 103 DB HAHA

mysql101 10-10-2006 12:56 PM

best way to make a loud midpipe less so, is install a turbo :)

say goodbye to single digit gains, and hello to triple digits.

Laserkei 10-10-2006 01:01 PM


Originally Posted by XDEEDUBBX
..probably 103 DB HAHA

:Eyecrazy:

c41250n 10-10-2006 01:04 PM

lol...yea, itz too loud!
do you guys really feel the power gain after putting on the supercat?

Former A4'er 10-10-2006 01:04 PM


Originally Posted by mysql101
best way to make a loud midpipe less so, is install a turbo :)

say goodbye to single digit gains, and hello to triple digits.

This is what I kept telling my wife but alas I sold my RP Supercat.

mysql101 10-10-2006 01:05 PM

I didn't feel any gains with a straight pipe. And that is going to give slightly better gains than a supercat...

NgoRX8 10-10-2006 01:09 PM

my butt isn't that good for testing. so i dunno if i felt a difference. but it sure sounded different and better than with the rb exhaust alone.

Laserkei 10-10-2006 01:10 PM

I'm going to try out my supercat this weekend and see/hear for myself.

no dice 10-10-2006 01:11 PM

If its too loud you can always donate it to me :]

Fanman 10-10-2006 01:18 PM

I had both the SR Motorsports hi-flow cat unit (that had the resonator option) & the RP Supercat later put on. At the time I had the RB exhaust, and with the SR unit it was pretty good. With the RP unit it definitely got louder. Now I have RP Supercat with the JIC Titanium and it is a bit louder than I would like (and I have a turbo on my car). Hate to tell you, but the Greddy exhaust by itself is already loud, anything else you put will just make it more so.

CoupeM 10-10-2006 02:55 PM


Originally Posted by foo77
CoupeM so you got the RP installed huh :ylsuper: how do you like it mate? mine still stock,but a lil bit custom ;) just can't imagine how loud the RP goes,coz i can't stand how my cat sound :lol2: but hey..i like to hear music as well,so no prob with it :D:

After install, it sounded horrible. Raspy and cheap like a civic. But after awhile it sounded better. Throaty and deep. At least that is at up to 3.5k rpm and light throttle. At wot, it sounds like a JGTC(japan grand touring championship) car. :rock:

c41250n 10-10-2006 05:02 PM

yea...i just took it off this morning, i think im just gonna sell it!

maxprelude92 10-11-2006 02:56 AM

dibs if you are. PM'd.

Dookie_Rx-8 10-11-2006 04:31 AM


Originally Posted by c41250n
have anyone got pulled over because the car is too loud?

haha i was laughing when i read "too loud"..... ummm i cant speak for anyone but as for me i havent gotten pulled over for exhuast...lucky me...and i do line up with police at the light ALL the time...

Silver_Surfer 10-11-2006 11:20 AM

WOW! Who would know the little 1.3L could bark so loud? :Eyecrazy:

I am VERY, VERY VERY GLADE I did'nt get one yet!!

Thanks for the thread! :ylsuper:

XSeT 10-12-2006 11:39 PM

I got my RP Midpipe installed this weekend, way 2 loud lol.

DOMINION 10-12-2006 11:49 PM


Originally Posted by mysql101
best way to make a loud midpipe less so, is install a turbo :)

say goodbye to single digit gains, and hello to triple digits.

I was just going to call you to this thread :mdrmed:


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