How much power and torque do the downpipes add? Peak horsepower increases by 19 wheel horsepower and peak torque increases by 11 lb-ft. As is usual with turbocharged BMW motors the peak figures do not tell the whole story. Looking at the curve 35 lb-ft of torque at the wheels is gained at 3300 rpm and 23 horsepower at the wheels is gained at 6400 rpm.
The curve is interesting in that the majority of the gains come down low and up top. The mid range is basically unchanged. It would be interesting to see the result of a tune added on top of these pipes.
Pictures and further details below.
Retail: $1195 + shipping
- Made in the USA
- US 304 Stainless Steel
- Hand TIG Welded
- Lifetime warranty on all welds
- Improved throttle and turbo response
- 100% perfect fitment and space for O2 sensors
- For off-road use only; not 50 state legal