Performance chip for wrx

Asked by Feb 02, 2012 at 08:11 PM about the 2005 Subaru Impreza WRX Wagon

Question type: Car Customization

do the performance chips really make more HP and better MPG and are they "hard" on the
engine.

2 Answers

305

Engine Management (EM) (e.g. Cobb AccessPORT, a ProTune, or Tactrix cable tune, etc.) won't hurt your car if done/used properly. For instance, when I started using the AccessPORT, I started with Cobb's off the shelf (OTS) Stage 1 map since I had nothing modified on the car except an intake. This gave only a slight increase in HP but greatly improved throttle response and acceleration in in the lower gears making daily driving much more enjoyable. It also resulted in better mileage (21-23 City/29-31 Highway) in my '07. This actually improved the wear and tear on my engine by optimizing it's performance. When I made the appropriate modifications and used Cobb's OTS Stage 2 map, I noticed much more HP and TQ throughout all of the gears but fuel efficiency remained the same. For an even more noticeable (HP and TQ gain), I will have it professionally tuned using my AccessPORT...a ProTune. Knowledgeable people can tune the ECU's themselves, but I stress the word knowledgeable since it is easy to damage your car if you don't know what you're doing.

7 of 7 people found this helpful.
385

^well put

Your Answer

Subaru Impreza WRX Experts

  • #1
    Cole Kramer
    Reputation
    310
  • #2
    Ryan Lyle
    Reputation
    160
  • #3
    John5766
    Reputation
    140
View All

Related Models For Sale

Used Subaru Impreza WRX STI
26 Great Deals out of 611 listings starting at $9,490
Used Mitsubishi Lancer Evolution
15 Great Deals out of 582 listings starting at $12,999
Used Subaru Impreza
210 Great Deals out of 22,990 listings starting at $1,505
Used Ford Mustang
599 Great Deals out of 39,962 listings starting at $1,895
Used Honda Civic
845 Great Deals out of 61,320 listings starting at $950
Used BMW 3 Series
1,117 Great Deals out of 32,970 listings starting at $1,200
Used Subaru Legacy
246 Great Deals out of 15,197 listings starting at $1,795
Used Volkswagen GTI
143 Great Deals out of 6,147 listings starting at $1,490
Used Nissan 350Z
41 Great Deals out of 1,192 listings starting at $2,900
Used Dodge Charger
474 Great Deals out of 34,069 listings starting at $1,999
Used BMW M3
39 Great Deals out of 2,086 listings starting at $6,399
Used Subaru Forester
404 Great Deals out of 39,637 listings starting at $1,000

Used Cars For Sale

2014 Subaru Impreza WRX For Sale
6 Great Deals out of 180 listings starting at $15,995
2013 Subaru Impreza WRX For Sale
8 Great Deals out of 219 listings starting at $14,771
2012 Subaru Impreza WRX For Sale
3 Great Deals out of 114 listings starting at $13,490
2011 Subaru Impreza WRX For Sale
3 Great Deals out of 164 listings starting at $10,993
2010 Subaru Impreza WRX For Sale
3 Great Deals out of 49 listings starting at $8,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.