When R owners want more power than our Power Packs offer, a high flowing race-bred turbo down pipe is the next step in the upgrade process. A down pipe upgrade will significantly reduce back pressure, allowing the engine to breathe easier and thus provide much improved throttle response, torque production and good old HP (typically in the range of 15-20 HP and 20-25 lbs/ft of torque). Exhaust tone is slightly different (throatier), but not really louder. Search popular forums and you will find comments such as:
- “Boost builds 500-800 rpms sooner….”
- “Throttle response is much improved….”
- “Mid range pull is smoother and less strained feeling..."
ipd downpipes utilize a metal monolith 3-way catalytic converter. Metal monolith cats are expensive, but flow much better than the ceramic cats you’ll find in most aftermarket down pipes. Also, an integrated flex-joint helps to eliminate stress cracking and vibration. 3” mandrel bent stainless steel for highest flow capacity and long life. Oxygen sensor ports are retained as well as factory mounting points and connections. Our pipes also include attachment points for the heat shield, an ipd exclusive. Also included are new gaskets, hi temp joint compound and an oxygen sensor lead extension, which is necessary on some models. Our down pipe is compatible with the stock exhaust as well as most aftermarket systems. Will pass emissions tests, but may not be legal in cars with less than 50,000 miles on them. We are offering these upgrades for off road use only, not for use on any Federal or state highway.
*For optimal results, Stage II software is required when using a down pipe on these models to prevent boost spikes (moderate hesitation during hard acceleration transients). Stage II software is $995 or $495 when upgrading from Stage 1.
