ok mates, tegiwa has been finally tuned & dyno'ed
stage0: stock EP3 + CAI
result: 201hp @ 7666rpm / 144.1lbft @ 6457rpm
stage1: stock EP3 + CAI + K100
result: 210hp @ 7621rpm / 153.7lbft @ 5544rpm
here's dyno chart for stage0 vs. stage1
stage2: EP3 + CAI + tegiwa 4-2-1 header + custom 2.36" exhaust with 2 silencers (quite quiet) + K100
result: 219,2hp @ 7341rpm / 169.7lbft @ 5341
comparing gains between stage0 vs stage2, results are even better:
- 2800-3800rpm, + 9-11hp / 11-18lbft
- 3800-4800rpm, + 11-20hp / 20-24lbft
- 4800-5800rpm, + 22-36hp / 24-35lbft
- 5800-8400rpm, + 15-36hp / 15-23lbft
the only dyno I got is stage1 vs. stage2 (but not final result)
Just to briefly summarize - car drives really nice, it gives a lot of fun. What's more interesting. As per my tuner (ecu-peformance - Poland), bigger exhaust would'nt give more torque/power in the most usable range - it could increase numbers on higher rpms but would decrease power in the middle and below. For me, tegiwa is really nice alternative to dc sports, maybe it does not give much hp but torque is as impressive as in toda for less than 30% of the price!