fish1878

Hello, everyone. Im new. I have a hhr ss. I would like about 400 hp. I heard people were getting it with a turbo swap from hahn or zzp. Which application would be better and why? Also what device could I order to dwnload either hahn's or zzp's program. One that has a cable to connect to my car. What is data cable? Mods I have: gm turbo uppgrade, hahn intercooler, cat delete, zzp motor mount, k&n, ttr sway bar, pedders springs.

SS fan

Welcome to the site, lots of ways to make 400 hp, there are more guy's doing it over at at turbohhr.com.

IgottaWoody

E45 tune......

badassbowtie

Twincharge+E85....easy 400+ horsepower

Miltown SS

Whatever you do stay away from Hahn. If you have problems you are SOL..very poor customer service

AJL08SS

I agree about Hahn. I had a serious fitment issue with their exhaust system requiring me to modify one pipe, and mid-way through the resolution with customer service they stopped responding to me.

ATLsilverSS

There are several bolt on options as well as kit options in swapping to a larger snail. Bnr2871, pwerks wr2 & wr3, zzp zfr are all bolt on meaning no manifold changes. Zzp, pwerks, treadstone all make nice kits. A kit will be more expensive but will swap more parts.

I am building my own kit and sourcing parts individually for it. Its the cheapest way to go and you can get exactly what you want. I will be running a custom billet 58mm comp wheel with a stg3 turbine wheel. It will get me to the 500whp mark on e85 or race gas. 400ish on a dd tune on 93

As far as tuning. You will need and want hptuners for the tuning software. Find a reputable tuner who knows the lnf.

ATLsilverSS

^^^^forgot to list the hahn 20g as a bolt on option. Any one of the options i listed above, including the 20g will get you 400whp on 93

fish1878

i think im going with hahn 20g. they use trifecta. Thanks for the feedback.

Miltown SS

Get ready to rebuild that turbo every so often