I got one of NWP's 75mm throttle body kits. He had some great claims and good research to back up what he was doing with the project. So of corse is the conquests of continuing development of the vq platform I was hooked. I knew this would be a tough crowd, and this is why I am writing the review. Most people with this platform discredit things for no other reason than it doesn't follow the normal cookie cutter build.
Dyno Sheet from NWP
For those that haven't seen it here it is. 100% Plug and Play. No tuning or portwork required. Perfectly port matched. Features a tapered bore for increased airflow!
When I received the package from NWP I was thoroughly impressed with the quality of the adapter piece. Was machined beautifully, came with new hardware and additional gasket.
Install was as simple as unbolting the intake pipe removing the old tb, installing the adapter plate, new 75mm throttle body, plug in Voltage drop adapter harness, then re install intake. Defiantly a diy job with basic hand tools.
Initial Impressions: Car fired right up first try with no need to idle relearn, and a very steady idle, it didn't idle hunt like my previous tb. It was very steady.
First drive and rev ranges. The throttle response is fast and crisp. The butt dyno says that it is making power in the upper rpms, and did not feel any noticeable lost down low. It seems to be really pulling in the 5k plus rpm which is consistent with the dyno charts that I have seen from NWP. I will be doing additional testing in the next couple weeks and will eventual be doing some dyno testing with before / after and retune.
In closing, I am impressed with the upgrade and think is a very good bang for you buck that will compliment most other bolt on mods on the market. Especially those that are trying to squeeze every last drop out of there motor.
Note: If you are using t-bolt clamps and very stiff couplers you might need a larger size to accommodate the additional size of the new tb. I was able to stretch my silicon coupler over but needed a larger t-bolt clamp.
Side by side comparison of the stock vs the new 75mm Tb