2014 Corolla Exhuast
- Thread starter John Mora
- Start date
It wouldn't be a true X pipe for an I4 engine ... X pipes are for V configuration engines. V6, V8, V10, etc.
X pipe takes one bank of cylinders and another bank of cylinders and crosses the pipes after the catalytic converter but before the muffler. They sound beautiful but if you have to drop the transmission, you gotta drop the entire exhaust system because the cross-over usually happens near the output shaft-end of the transmission.
Also, dual exhaust on a 4-banger is super rice .. unless it's a boxer-4 turbo that actually needs the exhaust flow.
The Borla muffler is specifically designed for the Corolla. It's slightly more free flowing so you lose a touch of torque on the bottom of the powerband, but you get back some horsepower on the top end.
Usually it is the diameter of the exhaust, the catalytic converter, and the size of the exhaust valves that make the biggest impact on the flow-rate and backpressure of the exhaust.
Increasing pipe diameter / Reducing back pressure = more top end, less bottom end.
Decreasing pipe diameter / Increasing back pressure = less top end, more bottom end (to a point, if you go too small on the diameter or have too much back pressure the entire curve will suffer).
X pipe takes one bank of cylinders and another bank of cylinders and crosses the pipes after the catalytic converter but before the muffler. They sound beautiful but if you have to drop the transmission, you gotta drop the entire exhaust system because the cross-over usually happens near the output shaft-end of the transmission.
Also, dual exhaust on a 4-banger is super rice .. unless it's a boxer-4 turbo that actually needs the exhaust flow.
The Borla muffler is specifically designed for the Corolla. It's slightly more free flowing so you lose a touch of torque on the bottom of the powerband, but you get back some horsepower on the top end.
Usually it is the diameter of the exhaust, the catalytic converter, and the size of the exhaust valves that make the biggest impact on the flow-rate and backpressure of the exhaust.
Increasing pipe diameter / Reducing back pressure = more top end, less bottom end.
Decreasing pipe diameter / Increasing back pressure = less top end, more bottom end (to a point, if you go too small on the diameter or have too much back pressure the entire curve will suffer).
get the borla bolt on, they have a deep growl which no other muffler can replicate, its the only muffler that combines a low rumble with a nice sound with ought being too zippy or rice....
i bought mine from and upcoming website called Jet.com for 234$...i got it for a steal because everywhere else it is 320$(guess they didn't know how to price there item, but since then they raised the price to 365$, probably to recuperate some loss haha xD)
i bought mine from and upcoming website called Jet.com for 234$...i got it for a steal because everywhere else it is 320$(guess they didn't know how to price there item, but since then they raised the price to 365$, probably to recuperate some loss haha xD)
