Head Porting
Did you know we also provide head porting and in house flow bench testing? To find out more, ask us .
custom vehicles
Location
* Easy access from Hwy 167
* Advanced Street Performance
710 Central Ave S. Kent, Washington 98032

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03-02-2011
got my ep3 3" exhaust kit in last night, perfect packaging and perfect exhaust. Had it all welded up today with a vibrant muffler on the end, all i can say is WOW...quality work, perfect fit and sounds amazing. He also made me a transition piece so it can bolt easily up easily to my race header. Highly recommend this exhaust kit and seller, very friendly and knows what he is doing. Thanks again!!!
- RHCP0801 -
04-11-2010
This guy is honestly the best customer service ever....He really helped me out today. When honestly he didn't have to it was my **** up. and he took the time to help me out on a sunday..I really appreciate it stefan. All is well again thanks to you.
- JDMTOKER -
04-14-2009
ASP, Stefan, and Charles know all aspects of tuning. Building headers/R & D, fabricating/installation of parts, K-Pro/ECU tuning, troubleshooting problems, and answering questions/giving suggestions. These are all things that they have done for me. We are very lucky to have them on board at K20a.org!! It's the only place I have taken my Kswap to and they have put me miles ahead in the game.
- McCoy -
01-20-2009
ASP is the truth. Stefan is the true definition of customer service. Always willing to answer questions and is very patient. I would recommend to ANYONE. Best of luck to you in the future Stefan.
- ADI DK -
01-16-2009
Great guy to deal with, love the intake he fabbed up for me. Fast shipping also!
- k20eg6 -
10-12-2008
Thanks stef, extremely happy with the headers, cannot wait to try them out.
- TheBob -
09-30-2008
Received my 3" piping kit within a few days after payment. Very satisfied with it! Great service.
- Andrew from Hawaii -