Preferred Exhaust Systems...
#32
The ones they build now are fabed from 321SS bends , and not the 993 oe version. They are a total built custom tubular header, with or without heat. both sets are nice and I ( imo) think are a improvement on most headers that are avaliable for our cars. And being fabed from 321 ss should out last most all of the competors at a good price.
#33
Rennlist Member
Agreed, the new headers are nice.
I chose not to wait for those and went my own way.
I'm curious to see how they perform on the dyno.
The crossover was designed to work with the stock oil line running behind the engine and the stock drip tank. The problem with that is the ground clearance of the crossover isn't all that it could be.
I chose not to wait for those and went my own way.
I'm curious to see how they perform on the dyno.
The crossover was designed to work with the stock oil line running behind the engine and the stock drip tank. The problem with that is the ground clearance of the crossover isn't all that it could be.
#35
Rennlist Member
Yes, boost threshold is much lower than a stock system. The stock system has losses due to the 90 degree turns it makes. The 993 H/Es, although they are not equal length, offer a short and direct path to the turbo. With boost coming in at 2800 rpm (and by this I mean 2-3 psi at this engine speed) driveability is much improved over the stock system.
#38
Registered User
#39
Racer
The cheapest way imho is to install a cat delete pipe and keep the stock muffler. Great performance gain and nice burbling sound but not loud enough to upset the neighbors though
#40
Yes, boost threshold is much lower than a stock system. The stock system has losses due to the 90 degree turns it makes. The 993 H/Es, although they are not equal length, offer a short and direct path to the turbo. With boost coming in at 2800 rpm (and by this I mean 2-3 psi at this engine speed) driveability is much improved over the stock system.
Do you have pics of your muffler?
And vids with the sound?
I am going to decat my 965, but wont to make too loud car.
Thnx, Alex
#41
Rennlist Member