I "Searched" now I'm more confused

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Oct 12, 2007 | 04:08 AM

#11

Bad Bimr

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Joined: Mar 2007

Posts: 351

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From: PA, USA

My Ride: 2004 545i, 1995 M3

Quote:

Originally Posted by RemusExhaustShop' post='480470' date='Oct 11 2007, 10:01 PM

For muffler you either have the choice of going custom or RDSport, I think Hamman has a quad too.
Custom will set you back around 1000 - 2000$.
RDSport I believe is 2,500.00 - 3,000.00$

Some people on this board have made a custom quad with our universal mufflers, maybe they can help you.
We can provide dimensions of our universals to help you.

You guys out in the west coast get ripped off. I had a quote to do a custom SS exhaust for under $500. Whoever spends $3000 for a cat-back exhaust should be shot (to spare them their misery).

BP

Oct 12, 2007 | 06:47 AM

#12

Bimmer32

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Joined: Aug 2005

Posts: 2,114

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From: Houston, Texas

My Ride: 2005 BMW 545i, Silver Grey, Sport Package, R. Shades, Cold Pkg, Sat. Rad., Prem. Sound.

Quote:

Originally Posted by olli_535d' post='480246' date='Oct 11 2007, 10:50 AM

I am 100% with vegas on this, a proper CAI, really only getting in cold air, a proper exhaust system (not only the muffler) and the remap on top to make the most of it. Should easily get you between 20-35 horses, depending on the factory state of tune, as they are not all the same.

With the above you will notice a difference, not like bolting on a turbo, but it will be there and much more so in terms of driveability, removal of flat spots in the rev range and responsibility.

I don't think one could relatively feel the gain of 20-35 horses on a 325 HP based engine. I've test driven a 550i and only noticed a "slight" difference (more responsive) at high speed triple digit. Below that, the 545i and 550i "feels" the same. Now if you mod and added stiffer suspension and lower profile tires, then you may feel more responsiveness from the car because you are more connected to the road. I think the sprintbooster only increase the communication from the pedal to the engine and not increase horses. In a race, that helps. And since the car is more responsive, you feel it's faster.

So, there's true to both sides of the table. At about $100 per horse, you decide if that is financial sound. As for the fun factor, there's no argument that modding is a fun process weather it's for performance gain or looks.

Oct 13, 2007 | 05:27 PM

#13

AlB

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Joined: Feb 2007

Posts: 333

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From: Richmond, VA

If you have a manual or a smg, I would say the biggest change for your car that you can really feel is the 3.45 dinan gears.

If you have the step, you could add exhaust, intake and s/w but I don't believe the seat of the pants difference will justify what you spend. That is just my opinion.

best of luck

al

Oct 13, 2007 | 07:49 PM

#14

C's Bimmer

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Joined: Feb 2006

Posts: 14,646

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From: NY

My Ride: 2008 Silverstone II E60 M5 2012 E70 AW X5 50i Sport w/ LCI Aero Kit and Rocker Panels

My car feels like an M5 now.

ECF/VT - Let's race! I'll take you both.

Oct 13, 2007 | 08:43 PM

#15

vegastrashed

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Joined: Apr 2005

Posts: 7,363

Likes: 1

From: San Diego, CA

My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem Suspension: Renntech Lowering Module Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20 ----------------------------------------- 2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips! Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R Lights: PIAA 4150K Xtreme White Plus fog lights, AIB v3 MOST IMPORTANT: Hardwired V1; =) ED Date: 4/7/05, Re-delivery date: 5/21/05

Quote:

Originally Posted by C's Bimmer' post='481257' date='Oct 13 2007, 08:49 PM

My car feels like an M5 now.

ECF/VT - Let's race! I'll take you both.

I'll take you going in REVERSE.