♦ Sonic MS | Race Precision (RPi) GTM Exhaust System for the E92 M3

[Cal@Sonic MS]

Sonic Motorsports
1045 West El Camino Real
Mountain View, CA 94040
tel: 650-733-6506
fax: 650-691-9009
email: info@sonicms.net

RPi GTM Axle Back Exhaust Mufflers - E92/E93 M3

We at Sonic MS are proud to present RPi's new GTM exhaust mufflers for the E92 M3.

It's proudly crafted in the United States out of high quality T-304 stainless steel, and weighs approximately 37 lbs, saving 22 lbs from the bulky OEM equipment. Comes with connecting pipes for a 100% bolt on installation.

Features:

• T304 Stainless Steel
• Made in the United States
• Includes Connecting Pipes & Clamps
• 100% bolt on installation
• Limited Lifetime Warranty
• plus 5-7 whp
• plus 3-4 foot/lb tq
• minus 22 lbs from OEM equipment

RPi GT X-Pipes / V2 Cat Delete Pipes - E9X M3

We also carry RPi's X-Pipes and V2 Cat Delete Pipes, the perfect complement to the GTM rear section and completes the full "race" exhaust system.

This system has dyno proven gains of 28whp and 35 ft/lbs of torque when coupled with the GT/M Rear Section. Unlike some tuners, RPi employs rather strenuous dyno testing standards. Each session in performed in their in house R&D facility, in doors and with the hood closed. All tests are done with no cool down period and numbers are only provided if the power numbers can be backed up consecutively with consistent results.

In addition, RPi's full GT/M "Race" Exhaust System saves over 58 lbs from OEM equipment.

Features:

• T304 Stainless Steel
• Made in the United States
• Includes all mounting hardware
• 100% bolt on installation
• Limited Lifetime Warranty
• plus 28 whp
• plus 35 foot/lb tq
• minus 58 lbs from OEM equipment

Independent Reviews
http://www.m3post.com/forums/showthread.php?t=488045
http://www.m3post.com/forums/showthread.php?t=483713

MSRP Pricing:
RPi GT/M Rear Section - $1,750.00
RPi GT X-Pipes + V2 Cat Delete Pipes - $1,299.00
Full GT/M "Race" Exhaust System - $2,750.00
*Prices do not include shipping and/or tax if applicable.


For best pricing and ordering information, please call me at 650-733-6506, email at cal@sonicms.net or send me a PM.


Store Hours:
Mon-Fri : 10AM-7PM PST
Sat: 12PM-5PM PST

Payments:

We accept all major Credit Cards, in addition to PayPal and Certified Cashiers Checks / Money Orders.

We also offer professional installation for Bay Area customers with our certified technicians, please contact me directly for more info.

[shane335i]

I highly recommend this system (GTM) along with Sonic Motorsports, they have done great work on my car and keep me coming back for more HP like a crack addict!
;o)

[stefanot]

Any clips of the GTM catback only with stock x-pipe? Did some searching and could only find the full system (which sounds amazing)

[Cal@Sonic MS]

Originally Posted by stefanot

Any clips of the GTM catback only with stock x-pipe? Did some searching and could only find the full system (which sounds amazing)

Not yet unfortunately...but hopefully we will have one soon

[NavidM3E92]

Amazing deal for 2700 bucks

[Cal@Sonic MS]

Some vids.

[stefanot]

Originally Posted by Cal@Sonic MS

Some vids.

Besides sounding amazing, how loud would the catback compare to? Eisenmann sport? Eisenmann race? Meisterschaft? etc.

[w00tw00t]

I downloaded one of the HD videos above and listened to it on my 7.1 HT system and was blown away.. absolutely intoxicating sound! ...

......... Great exhaust at a great price!

[Cal@Sonic MS]

Originally Posted by stefanot

Besides sounding amazing, how loud would the catback compare to? Eisenmann sport? Eisenmann race? Meisterschaft? etc.

The RPI GT/M rear section likens itself more towards Eisenmann Race and Meisterschaft SUS GT2 systems, at least in regards to loudness.

[Cal@Sonic MS]

Just sold another RPI GTM Rear Section. Customer will retain OEM X-Pipes / Cats. Will post video / pics once we get it installed

[e60cs5]

I also ordered an exhaust from Cal last week. He's been great to work with and great to follow up, etc. Highly recommended vendor.

I hope my evo isn't too quiet The RPI sounds good.

[Cal@Sonic MS]

Originally Posted by e60cs5

I also ordered an exhaust from Cal last week. He's been great to work with and great to follow up, etc. Highly recommended vendor.

I hope my evo isn't too quiet The RPI sounds good.

Thanks for your support. I know you won't be disappointed with the EVO

[e60cs5]

Thanks Cal,

I installed my spacers today. The stance is SOOO much better. Will be installing my SSK and exhaust this weekend.

Will post pics later - so far so good!

[Cal@Sonic MS]

Here's some pics from an install we did today. Customer has an E93 M3, we installed a RPI GTM rear section in addition to a matte black PWC ARKYM rear diffuser.




100% bolt on installation.



Few more pics







And here's a quick video we took

[zxmarekxz]

sweet looking setup

[Blotman]

I have the GTM axle back exhaust, and it's loud enough to set off warning chirps from other cars in a garage. Based on my judgement alone I wouldn't say it's twice as loud, but it's kinda pushing it at lower revs. It tones down past 3000 rpm though, but I still think it's louder than stock. My sister comments on how she can now hear me coming from the end of the road (about a block) regardless of where she is in the house.

Haven't had any trouble with the law on the streets and highways if that's your concern. Even took my chances and rolled past a couple police officers in a parking lot once. They looked, but didn't seem concerned.

As for mpg, I couldn't tell the difference. Honestly, my average changes every week because of the traffic to work anyway.

[Cal@Sonic MS]

Few more pics of the RPI GTM Axle-Back unit.

[PAKMAN]

howd you get that difffusor to fit those tips?!

[Cal@Sonic MS]

Originally Posted by PAKMAN

howd you get that difffusor to fit those tips?!

It's a snug fit, but it can be done

[KEYON]

Originally Posted by Cal@Sonic MS

Some vids.

720 HD and Bose Speakers...

i jizzed...

[mkPOTO]

Question I was wondering if I run full gym exhaust will I get a check engine light.

[N8dawg]

Originally Posted by mkPOTO

Question I was wondering if I run full gym exhaust will I get a check engine light.

Any catless system will give you CEL if you don't tune it out.