When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Price: $1520.00
Ram Air Intake
- Condition - Brand New!
- Application
- 2005-2010 BMW M5
- Features
- Direct bolt-on replacement to factory airbox requires no modification for fitment
- Requires approximately three hours of labor (based on having prior experience removing and reinstalling front bumper)
- Piping is hand welded from 4043 grade aluminum
- Micro-polished interior of piping to allow for smooth airflow
- Designed to provide maximum gains without triggering CEL (check engine light)
- Utilizes factory MAF sensor for exact OEM reading
- Maintains stable air/fuel ratio even with greater air flow
- Complimented by two Injen nanofiber inverted dry filters to bring maximum airlow
- Increases throttle response compared to factory setting
- Reduces throttle angle to improve fuel efficiency
- Road tested and dyno proven!
- Gains = +32.58 wHP and +19.82 wTQ (results from TDA Motorsport's 2008 M5. Actual results will vary)
- Surface Finish = Black
- In stock and ready for shipment
- Proudly manufactured in USA! - manufactured and quality controlled in-house
- TDA Motorsports products carry a limited lifetime warranty against all manufacturer defects and workmanship
- What's in the box
- 4 intake pipes
- 4 silicone couplers
- 8 stainless T-clamps
- 4 MAF sensor screws
- Filter bracket
- 2 Injen dry filters
- Installation instructions (digital download)
- Notes
- Special offer for local M5 owners! For a limited time we can provide installation and dyno session free of charge with this purchase.
In exchange we ask that you allow us to use the installation photos and dyno results for marketing purposes.
Please contact us for more details. - Special offer for local M6 owners! We are looking to see if this intake will work on the 2005-2010 BMW M6.
If you are located in Southern California and am interested in working with us on test fitment please contact us. - MSRP - $1900
- Notes - dyno results; courtesy of GTR High Performance in Rancho Cucamonga, CA running on a DynoJet 224 TDA Motorsports's 2008 BMW M5 at 35,000 miles
Stock headers with custom 3" header-back exhaust
H&R Lowering Springs
Aicona ALC35 in 265/35/ZR20 fronts and 295/30/ZR20 rears
Date: 8/24/2012, Temperature conditions: hot at ~95°F. Session started at noon and lasted approximately two hours.
All runs completed on the same afternoon with approximately an hour break in between session to install the intake and set up for the next run.
Coincidently this allowed the engine to cool down as well.
Stock Air Boxes
Run #1 and #2 = consistent results of 397/398 wHP along with 299/295 wTQ when the engine was still cool. The best run was after one warm up.
Run #3 = as expected, a drop in numbers as a result of engine heat soak. The last run yielded 390 wHP and 290 wTQ.
EFREN Built Ram Intake
Run #4-6 = consistent numbers in the upper 420s wHP including one that touched 430. Torque jumped to almost 320 with the last run deviating slightly as a result of a hotter engine.
The tight window of 428, 430, 428 wHP in this session shows just how effective the airflow is with this intake. Unlike the third run of the stock air boxes, the third run with the intake didn't show noticable signs of a heat-soaked engine.
Gains = +32.58 wHP and +19.82 wTQ
S.S.'s 2006 BMW M5 at 76,000 miles
Stock headers with Corsa axleback exhaust
Eibach lowering springs
HRE 20" rims
Seibon BM-style carbon fiber hood
Date: 4/12/2013, Temperature conditions: warm at ~70°F. Session started at one in the afternoon and lasted approximately five hours.
All runs completed on the same afternoon with approximately an three hour break in between session to install the intake and set up for the next run. We also used this opportunity to take photos to create the installation guide.
We took and compared the best results from the stock run versus the Efren Built intake runs.
Gains = +26.96 wHP and +26.71 wTQ
D.H's 2005 BMW M5
- United States shipping rate applies to commercial/residential addresses in the contiguous 48 states
- Canada shipping rate applies to addresses in AK, HI, US Territories, PO Box, Military PO, and Canada
- International shipping rate applies to addresses in all other locations
- Custom/duty/brokerage fees on Canada and international orders are the responsibility of the buyer
- Local pickup available - please contact for price and terms