This pre-muffler fits the :
> 911 2.7L
> 911 3.0L
> 911 3.2L
For these cars the pre-muffler is the most technical component of the exhaust line. All 5 of our pre-mufflers correct the defect present in the original part, The original having an inefficient gas flow resulting in a loss of power. The more linear gas-flow of our exhausts will release the power of your engine.
This sport version of the pre-muffler has an elongated 2 in 1 to optimise the gas flow. It qualifies as "racing" because it does not have a muffler. Fitting this component alone will, in addition to an improved performance, increase the sound by 20% compared with the original. Fitted along with a Riva type sport muffler, you will release 100% of the engine's sound capacity. Just for information; the smaller the engine, the angrier its sound, therefore a 911 3.0L will give you more sound than a 911 3.2L.
Our range also includes the following solutions:
> A standard 400 cell catalized version - (Reference : SCA 911 2 1 CAT)
> A 100 cell sport catalized version - (Reference : SCA 911 2 2 CAT)
> A sport version - soft sound (Reference : SCA 911 2 1)
> A sport version - with a Riva type sport sound - (Reference : SCA 911 2 2 RIVA)
Our exhausts all fit onto the original interfaces. By this we mean their entry, their outlet and their size conform to the original part. They can therefore be fitted in replacement of the original part without requiring any modification.
This pre-muffler fits between the headers and the mufflers.
On average, the fitting time is 1,5 hours, including the time taken to dismount the original exhaust. Fitting time will be faster if the exhaust you're dismounting is in good condition, just as it may take longer if the reverse is true.
It is preferable but not essential to use a car hoist.
Dismounting the original exhaust can be tedious and require specific tools, for example a small grinder to remove the bolts at the pre-muffler entry. To facilitate the dismounting we recommend you remove the rear left wheel and shock absorber.
Tightening of the bolts must always be done progressively across the whole set of bolts. Make sure that the muffler is correctly positionned before fixing into place.
To ensure that our exhausts are fitted under the best conditions, a mounting kit containing: gaskets, stainless steel bolts, stainless steel lock nuts and high temperature copper grease, is included with your exhaust.
Sound levels with Sport muffler
At rest 75.8 dB
Stabilised 4000RPM 93 dB
Acceleration 95 dB
Sound levels with Riva muffler
At rest 84.5 dB
Stabilised 4000RPM 94.5 dB
Acceleration 101 dB
Scart Weight: 2.90 Kg
Gain Vs Original: 2.7 Kg