Exhaust problem with CR

[R-13239]

Hey there , I'm running my car with 12.7 CR , with Wiseco forged pistons + toda head gasket etc.

I bought IPS K2 cams , RBC intake manifold with BDL 70mm TB ...

My question is , if I use the stock muffler with 70mm chrome mid pipe + DC Race headers , will I have major power losses? Now I'm using a HKS Carbon-Ti muffler but it's too damn loud...

I read somewhere here that stock muffler flows nice...

Will it cause me any problems ?

Thanks for the answers..

[R-13239]

I'm using AEM CAI for intake...

[Bificus]

You'll lose some power up top but gain sanity all thru the rev range. Main thing is...will the flanges match between the OEM and aftermarket parts. I took my OEM axle back and had a new flange put on it so I can use the aftermarket or OEM.

[20CiviC02Si]

I would at least try to find an axle back that is around 60-65mm to get rid of that horrible bottle neck action. Going from a 70mm midpipe to a stock axle back is kind of pointless....

[epshtielsl]

I thought the stock muffler flows well for up to 250 hp or something. I think you should be ok. You might notice a small loss up top but the midrange will improve. It's gonna sound like crap though. Very raspy.

[R-13239]

I'm gonna use HKS for racing , but for daily drive I'll use my stock muffler ...

My question is : " will the stock muffler cause some damage to my engine?"

[Bificus]

Nope!