Recently decat my cefiro a33 2.0, used back original diameter which is 2inch, 1 silencer in the middle and 1 mufler(1in 2 out) at the back, and 2 exhaust tips behind. After decat, FC improved alot, low end torque improved(just need to tap the accelerator a bit to move the car compared to last time), high end torque almost the same. Im quite satisfied with the setup only the thing that sucks is, when i release the exhaust, the RPM drops instantly and the 1 in 2 out exhaust which has 2 slow characteristics sound loud at low RPM, quiet at HIGH rpm, which I prefer it the other way round..
The piping right below my manifold has turned purple which is what im worried too because i believe its too hot, or is it normal?
I was wondering what should I do to improve my current setup? Do i need more backpressure or less?
I previously wanted to use 2 straight flow muflers for the rear end but i was afraid i would lose all the lower end torque. need advice from any exhaust sifu :D
The piping right below my manifold has turned purple which is what im worried too because i believe its too hot, or is it normal?
I was wondering what should I do to improve my current setup? Do i need more backpressure or less?
I previously wanted to use 2 straight flow muflers for the rear end but i was afraid i would lose all the lower end torque. need advice from any exhaust sifu :D
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