[sanyomats]

Originally Posted by ppatel223

Got JB4 stage 2 & downpipe from burgertuning.com. I installed jb4 in about 20mins, downpipe took about 45 mins at local shop.

Intially JB4 was installed running on map 1. I could tell bit of gain in power, but not much. Still felt turbo lag. It felt like launching a rocket. From 1-2k rpm, car feels slow, then on surge of power. After downpipe installed, it is a totally different engine. Response is immensely improved. Engine like and wants to be reved. Turbo whistle is sexy noise. It is more pronounced in cabin while driving. I do believe and feel that transmission shifts little quicker too because engine revs freely up and down faster than before. Downpipe is definitely a must upgrade.

Stock or other exhaust?