Very good sound and looks - German engineered quality – a world unique product!
Quad Custom Exhaust makes every BMW E82/E88 coupe and convertible look like an M-series 1M - made of high quality stainless steal
4x76mm rolled TailPipes - looks like original M3 / M1
Our exhausts are flow-, performance- and weight-optimized. We normally achieve a great performance gain (i.e. about 4-7 HP on 135i and torque gain of about 10Nm) withour the need to modify ECU - just by using the exhaust. Due to the use of leightweight high-tec material, we also achieve a great weight reduction (i.e. about 50% on 125i) compared to the stock exhaust.
Of course with EC approval (EG-ABE).
Exhaust is available for the following 1-series BMW E82/ E88 models (stock cars without tow-bar):
- 118d / 120d (N47)
- 123d (N47S) (connecting-pipe here not with clamp - has to be welded)
- 118i / 120i (N43)
- 118i / 120i (N46N)
- 125i (N52N)
- 128i (USA only N51)
- 135i (N54)
- 135i (N55)
Currently this system is available for all listed models above with installation in our garage. These products are also approved for shippment and self-installation in your local and professional garages of your choice!
Here on an 123d and 125i:
Here an 135i with N54 engine:
Here an 125i:
Here an 120d:
Inward rolled stainless steel tailpipes/tips (see pictures). (Some pictures may show the old "cutted tip" version - this version is no longer available).
Here an 135i:
No bigger modifications have to be made to the car!
With the original M-Technik rear bumber you just need to place our special inserts/diffusors into your bumber. Available in GFK (Fiberglass) and Carbon fiber
These inserts/diffusors can also be bought from us! You can navigate to the rear bumber inserts here (you can choose between real Carbon or Fiberglass and different versions)
www.insideperformance.de > Soundfiles
The exhaust stream is equal in all four pipes - very sporty sound.
Installation should be done by a professional garage - installation instructions can be found here