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  1. Headers or Exhaust??

    E60 M5 and E61 M5 Touring Discussion
    Eloy is on the road at the moment so he asked that I post on his behalf. Anyone in AZ interested in having some highway pulls with the RPi Stage 2 M5, he is available today and tomorrow before the SC is installed. The RPi M5 currently is at ESS US headquarters in Chandler. ESS Tuning 1900 W...
  2. RPi one day super sale @Pacific BMW in Glendale

    M5 E60 Group Buy Forum and Sponsor Discussion
    One day super sale at pacific bmw. October 10 until 3pm. All rpi products are 25% off. Price is good only at Pacific bmw
  3. RPI Intake Kit

    E63/E64 M6 Discussion
    Alex, That's great to hear. If you're impress with the intake kit wait until you get the pulley.
  4. RPI section 1,2,3 has any one modified to make quieter

    E60 M5 and E61 M5 Touring Discussion
    A solution I provided to cmansbimmer, who has the RPi ST section 1, GT section 2, and GT section3, was to dynamat under the heat shield and in the trunk. Drop the exhaust system and heat shield, place some dynamat on, put the heat shield and exhaust system. That will absorb quite a lot of the...
  5. RPi GT-Race exhaust M3: +24whp, +35wtq

    E30 E36 E46 E90 E92 E93 M3 Discussions
    Not the GT Race exhaust, but the GT Axle back dyno.
  6. M5 vs. Esprit

    GTBoard.com: General Sportscars
    All right, let's settle this. We'll run again on your terms. Let David know or PM me and set this up. Kenny and/or Rab Dog will be there this time around. I will give you credit for having one fast Cobra though. It'll beat a lot of cars out there.
  7. M5 vs. Esprit

    GTBoard.com: General Sportscars
    That isn't an insult. Sorry if you took it as one. You were beat before arriving at the toll plaza.
  8. M5 vs. Esprit

    GTBoard.com: General Sportscars
    You should know that when you run E60 M5s they run far past 130. Isn't that common knowledge?
  9. M5 vs. Esprit

    GTBoard.com: General Sportscars
    If you are talking about the second clip, you had already lost and slowed down to enter into the toll plaza whereas the M5 kept going straight. I will gladly show it in it's entirety.
  10. M5 vs. Esprit

    GTBoard.com: General Sportscars
    And what of you starting in second gear when the Stage 2 M5 was in third? Are you going to tell me that never happened? I'm sure you wanted to see those vids, but what is the point? Also, why do you stop at 130 mph? At 130 it's a warm up for the RPi M5s. If you want to prove it didn't happen...
  11. M5 vs. Esprit

    GTBoard.com: General Sportscars
  12. Exhaust Question RPI or Remus

    E60 M5 and E61 M5 Touring Discussion
    Jim, Good to know you're keeping the exhaust. I have found that driving in 6th gear between 70 - 80 mph on the highway helps minimize the resonance in the cabin. The key is to avoid 3K rpm where the resonance is most noticeable while in 7th.
  13. RPI's Block off plates

    E60 M5 and E61 M5 Touring Discussion
    Greetings, There will be a slight increase of the price of the block off plates to $22.50. All current orders and orders through end of the week, the current $20 price will be honored. Thank you.
  14. RPi GT and ST exhaust update

    M5 E60 Group Buy Forum and Sponsor Discussion
    New prices for the RPi exhaust sections and systems: Section 1 w/high flow cats = $1120 Section 1 w/straight pipes = $945 Section 2 hybrid X/H pipe = $669 Section 3 mufflers = $1589 Full GT exhaust system = $2882 Full ST exhaust system = $3040 All current orders and orders through end of...
  15. "Stock M5 Exhaust for Sale

    Parts / Other For Sale or Wanted
    We have a few used stock M5 exhaust systems available. This includes section 1, 2, and 3.
  16. RPi GT and ST exhaust update

    M5 E60 Group Buy Forum and Sponsor Discussion
    The sweet spot to avoid the droning is 3500 rpm @70 - 80 mph in 6th gear. Changing out the mid pipes to GT Section 1 and 2 will reduce the drone but it'll be there nonetheless.
  17. RPi GT-Race exhaust M3: +24whp, +35wtq

    E30 E36 E46 E90 E92 E93 M3 Discussions
    The diameter of the tips are 3.5"/90mm, same as the M5.
  18. RPi GT Sec 2 Available now

    M5 E60 Group Buy Forum and Sponsor Discussion
    I'm not sure if this has been mentioned, but sections 1 (ST or GT), 2, and 3 though being louder on the outside is actually quieter inside and has less of a drone than just section 3 alone. It's been confirmed by a customer who initially bought section 3 and yesterday installed 1 & 2.
  19. Why cant ca automotive ship eisenmann exhaust to usa?

    E60 M5 and E61 M5 Touring Discussion
    RPi exhausts are made in the US.
  20. RPi GT Exhaust coming soon!

    E63/E64 M6 Discussion
    Cold start with full RPi exhaust (1, 2, and 3) and headers Revving outside
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