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      04-03-2012, 04:52 AM   #1
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Removing my catless pipes back to OEM midsection.

Last week was the RPI GTC install. Pros: Power gains of 22hp and 30 torque, sound once the system settled and fat matte gray tips. Cons: Stinks, way too loud for my neighborhood and drone. Drone from 1500-2200 rpms. Basically scared I'll get complaints and or effed with by the cops. Was pulled over for doing close to 90 last night. I turned off the car during the stop.

So back to OEM midsection but with the mufflers. Hopefully I can maintain 50% of the sound because it's nice. Someone talk me into keeping my set up because I was planning on a Dinan remap.
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      04-03-2012, 08:37 AM   #2
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Uh doing 90 is enough to get you pulled over and you're complaining about the noise/smell? Add some cats if you want the smell gone. Choose a different exhaust if you don't want it so loud. RPi isn't known to be quiet so it sounds like research wasn't done before you bought.
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      04-03-2012, 08:50 AM   #3
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Add a set of high flow cats and one set of resonators.
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      04-03-2012, 10:02 AM   #4
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Quote:
Originally Posted by SehrSchnell View Post
Man up... move to a remote cabin, get a valentine one, and keep the x-pipe.

Or, switch back to the stock one, make casseroles for the neighborhood, and wear pleated pants with a sweater vest.

LOL

Why don't you just kick the guy's dog while you're at it?
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      04-03-2012, 10:04 AM   #5
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Quote:
Originally Posted by SDPDPRT View Post
Last week was the RPI GTC install. Pros: Power gains of 22hp and 30 torque, sound once the system settled and fat matte gray tips. Cons: Stinks, way too loud for my neighborhood and drone. Drone from 1500-2200 rpms. Basically scared I'll get complaints and or effed with by the cops. Was pulled over for doing close to 90 last night. I turned off the car during the stop.

So back to OEM midsection but with the mufflers. Hopefully I can maintain 50% of the sound because it's nice. Someone talk me into keeping my set up because I was planning on a Dinan remap.
Evolve showed in their exhaust testing that 200CPI cats make a small difference in terms of power. I can tell you that the smell is not really bad at all either once they are warmed up. It will be stinky during cold start.
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      04-03-2012, 10:11 AM   #6
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Since you have the RPI x pipe I would suggest doing what I did to mine and add a set of resonators. You already have the resonated front pipes just add a second set to the x pipe and my guess is you will love it. As for the smell it all just depends on the person, I have issues and love the smell of the 100 octane!
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      04-03-2012, 10:35 AM   #7
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Quote:
Originally Posted by SehrSchnell View Post
Man up... move to a remote cabin, get a valentine one, and keep the x-pipe.

Or, switch back to the stock one, make casseroles for the neighborhood, and wear pleated pants with a sweater vest.

I'm a Banana Republic guy so Sweater Vests are cool so I'll wear my vest and make tuna casseroles.

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Originally Posted by THE TECH View Post
Uh doing 90 is enough to get you pulled over and you're complaining about the noise/smell? Add some cats if you want the smell gone. Choose a different exhaust if you don't want it so loud. RPi isn't known to be quiet so it sounds like research wasn't done before you bought.
Research is hard to do when there are like 4 San Diego guys here on M3 Post, who knows who has an exhaust and no one meets ups. I'd rather hear exhausts in person than on YouTube. If one says that YouTube helped them with their decision then they must believe there are Talking Dogs Who Love Maple Bacon. Just rolled the dice on getting the RPI just like I rolled the dice on buying this car. Now that I've experienced it first hand and my tuning shop is easy to work with I'll make the changes I want.

Quote:
Originally Posted by Singletrack View Post
Evolve showed in their exhaust testing that 200CPI cats make a small difference in terms of power. I can tell you that the smell is not really bad at all either once they are warmed up. It will be stinky during cold start.
Roger that.

Quote:
Originally Posted by Raptor251 View Post
Since you have the RPI x pipe I would suggest doing what I did to mine and add a set of resonators. You already have the resonated front pipes just add a second set to the x pipe and my guess is you will love it. As for the smell it all just depends on the person, I have issues and love the smell of the 100 octane!
I will look into it.
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      04-03-2012, 05:42 PM   #8
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I had only the Catback Rpi GTC during the break in period, it didnt sound as good and deep as when i had the RPi xpipe installed! Just a tip, learn to drive like a grandma on the streets, listen for the engine load and correct shift points thats how i control the exhaust loudness. As per the morning start up and smell, its the price you pay for what you got my friend. The cold start you can eliminate with a tune.
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      04-03-2012, 05:48 PM   #9
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Quote:
Originally Posted by SDPDPRT View Post
Research is hard to do when there are like 4 San Diego guys here on M3 Post, who knows who has an exhaust and no one meets ups. I'd rather hear exhausts in person than on YouTube. If one says that YouTube helped them with their decision then they must believe there are Talking Dogs Who Love Maple Bacon. Just rolled the dice on getting the RPI just like I rolled the dice on buying this car. Now that I've experienced it first hand and my tuning shop is easy to work with I'll make the changes I want.
Even if you couldn't hear first hand, you would have at least learned that it was definitely loud. If noise was a concern, then you would have ruled this one out early. Common sense would tell you that running no cats would give you the smell. Live and learn I guess.
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      04-04-2012, 06:14 AM   #10
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I decided to keep it as is, no cats and full exhaust system. Gotten used to the loud sound and how to control it. I actually love it. As for the smell oh well. I couldn't walk away from the power gains. Will evaluate over the next few weeks and consider a tune.
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      05-18-2012, 01:29 PM   #11
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Quote:
Originally Posted by SDPDPRT View Post
I decided to keep it as is, no cats and full exhaust system. Gotten used to the loud sound and how to control it. I actually love it. As for the smell oh well. I couldn't walk away from the power gains. Will evaluate over the next few weeks and consider a tune.
Hi any updates here? Still enjoying the exhaust? Did you get a tune?

TIA,
Barry
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      05-21-2012, 11:21 AM   #12
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Hi any updates here? Still enjoying the exhaust? Did you get a tune?

TIA,
Barry
Hola,
Yup got the Dinan Stage 2. I noticed the gains and got rid of the cold start. That part was annoying. Love the exhaust. Can hear me from up the block according to everyone who rubber necks looking at my M. I park in a parking garage at work and the sound reverberates throughout the garage. Its so loud.
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      05-21-2012, 07:12 PM   #13
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Quote:
Originally Posted by SDPDPRT View Post
Hola,
Yup got the Dinan Stage 2. I noticed the gains and got rid of the cold start. That part was annoying. Love the exhaust. Can hear me from up the block according to everyone who rubber necks looking at my M. I park in a parking garage at work and the sound reverberates throughout the garage. Its so loud.
I went full Dinan with stage II. I have the exact same sound complaints as you, mild drone below 2200 rpm. Embarassing loud around my neighborhood, but I'm learning to keep the sound down when leaving the house. Everywhere else, I've been driving like a delinquent for the last two weeks. Great fun.

I back into the garage on Sunday nights so I (hopefully) don't wake the neighbors at 04:00 when I leave on Mondays. We have a few loud Harleys within a few blocks, so I'm probably not the worst offender.
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      05-21-2012, 07:24 PM   #14
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I went full Dinan with stage II. I have the exact same sound complaints as you, mild drone below 2200 rpm. Embarassing loud around my neighborhood, but I'm learning to keep the sound down when leaving the house. Everywhere else, I've been driving like a delinquent for the last two weeks. Great fun.

I back into the garage on Sunday nights so I (hopefully) don't wake the neighbors at 04:00 when I leave on Mondays. We have a few loud Harleys within a few blocks, so I'm probably not the worst offender.
Ha Ha ya I keep it low rpms around the hood but give a show to the looky loooos. My GSXR is my daily driver and my M is the weekend ride. My bike is annoyingly loud also but I'm not concerned.
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      05-21-2012, 09:23 PM   #15
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it sounds like research wasn't done before you bought.
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      05-22-2012, 08:19 PM   #16
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it sounds like research wasn't done before you bought.
Thanks for your opinion.
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      07-17-2012, 12:21 AM   #17
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Quote:
Originally Posted by SDPRT View Post
Hola,
Yup got the Dinan Stage 2. I noticed the gains and got rid of the cold start. That part was annoying. Love the exhaust. Can hear me from up the block according to everyone who rubber necks looking at my M. I park in a parking garage at work and the sound reverberates throughout the garage. Its so loud.
lol it's threads like this that at least reassure me that I made the right decision. I should get my GTC by the end of this week and I'll be throwing it on same day. Need to find a good method of capturing sound, and then I'll make a ton of sound clips, but for a while I've been wondering if I made a mistake and should have went with the GTM. I can't stand drone, but I love hearing my rev matches and downshifts. Everyone has their own perspective on what "loud" is. So hopefully you guys aren't too sensitive when it comes to hearing and I'm disappointed when I put the exhaust on lol
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      07-17-2012, 03:34 AM   #18
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I have the exact same sound complaints as you
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      07-17-2012, 10:27 AM   #19
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Having my RPI GTc full for a a couple months now I couldn't be more happier. In comparison to Akros and other systems I've heard in person I'm happy with the sound, performance, price and compliments I get. An engine tune is a must to compliment it. Still a little loud in the parking garage at work and my buddies give me shit for it but who cares.
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      07-17-2012, 11:46 AM   #20
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Has the smell improved or have you just got used to it?
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      08-14-2012, 08:56 AM   #21
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Has the smell improved or have you just got used to it?
+1 ?
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