To see how we built a 500hp 11-second 335xi using this exact guide! This map is constantly making adjustments based on fueling e85 mixtures vs. I removed the whole intake assembly but found no trace of the chip. Some days are dedicated to certain themes, see below. Here are some pics after my initial install. In summary, both tunes are very safe and effective if done properly.
Though maybe the B58 is better there, don't know, haven't driven a -40 car. Flash Tunes An important aspect of tuning your N54 is the difference between a piggyback tune and a flash tune. Sounded like a steal to me. Don't be like the people you read about on the forums who only buy this and end up boosting their car straight into the shop. Flash Tunes An important aspect of tuning your N54 is the difference between a piggyback tune and a flash tune. The catless downpipes without the tune were just embarrassing noise amplifiers…no fault of their own but the N54 is very mechanical and raspy without the cats.
This map is constantly making adjustments based on fueling e85 mixtures vs. Most importantly, regardless of which tuning platform you go with, you will want to make sure you have access to a map that allows you to run E85. I'm in the process of wrapping the roof right now. I would recommend these to anyone in the market for some downpipes. And I'm at work and it's not showing things on my pc. Biggest bang for your buck. You can buy that exact kit here: In my opinion, this is the best single turbo kit on my market.
If you can afford a proper tune then yeah will probably be better but I'm more than happy with this. These customized tunes are able to deliver great accuracy and consistency by developing maps designed specifically for your mods and goals. Not a bad start, right? Excellent welds, perfect cast flanges. I beat on it pretty good on the ride home and all is well. They were literally bolt on. The installation was direct fit and I can definitely feel a difference in sound and power with these downpipes.
I loaded up the map and hit the road to feel the power. Then the light came on again, but this time it was red. No matter which design you choose, expect installation to be fast and easy. New Michelin Pilot Super Sports from This is the first time I had ever bought tires online. Be the first to review this product! When posting an submission for a theme day, please tag the submission with the appropriate link flair. I think it's a decent car, better than many others on the market now, but the 1 is just that extra step better.
The difference in power gains from a catless downpipe compared to a high flow catted downpipe are only a few horsepower. Not a bad start, right? Now I have to play the waiting game… I was so excited to pack the extra 80hp on the car, and now I am stuck waiting for new ignition coils and spark plugs to arrive in the mail, and then for me to have time to install them. Vendor was quick to respond to any questions I had. I had to pull over on the side of the highway to let the engine cool down for a second. It's everything you need to take your N54 powered vehicle from mild to wild! A few minutes later, I had it in and adjusted. I'm going to be getting the oil lab tested and pulling the oil pan down next week. Everything was good to go no leaks or fitment issues.
Talked to my fab guy to get some ideas and he says its possible so more to come soon. Decided to start a build thread to help myself keep track of my progress with this new project. Write a headline for your review here: Write your review here: Your email: We promise to never spam you, and just use your email address to identify you as a valid customer. We put everything back together including the whole intake and crossed our fingers. Each kit includes heavy duty, grade 12 bolts, nuts and washers along with two mid pipe gaskets.
Here's some pictures of the parts and some better ones of the car after cleaning it. Great product at an amazing price. Gains: Butt dyno is reading off the chart! Decided to start a build thread to help myself keep track of my progress with this new project. I had it set to the least aggressive map on the way there and could already tell a huge difference. Fitment is spot on as well. Category A: Everything from a stock 135 or 335 to a full bolt on car with stock turbos.